Topic 1, Volume A
QUESTION NO: 1 CORRECT TEXT
You suspect that a new ethernet card might be conflicting with another device.
Which file
should you check within the /proc tree to learn which IRQs are being used by
which kernel
drives?
Answer: interrupts
Answer: /proc/interrupts
QUESTION NO: 2
How many SCSI ids for peripherals can SCSI-1 support?
A. 5
B. 6
C. 7
D. 8
Answer: C
Explanation:
SCSI-1 support total 7 peripherals. There are several different types of SCSI
devices. The
original SCSI specification is commonly referred to as SCSI-1. The newer
specification,
SCSI-2, offersincreased speed and performance, as well as new commands. Fast
SCSI
increases throughput to more than 10MB per second. Fast-Wide SCSI provides a
wider data
path and throughput of up to 40MB per second and up to 15 devices. There there
are Ultra-
SCSI and Ultra-Wide-SCSI
QUESTION NO: 3
You need to install a fax server. Which type of fax/modem should you install to
insure
Linux compatibility?
A. External Serial Fax/modem
B. External USB Fax/modem
C. Internal ISA Fax/modem
D. Internal PCI Fax/modem
Answer: A
Explanation:
QUESTION NO: 4
You are running Linux 2.0.36 and you need to add a USB mouse to your system.
Which of
the following statements is true?
A. You need to rebuild the kernel.
B. You need to upgrade the kernel.
C. You need to load the USB modulesfor your existing modular kernel.
D. USB support is no available in Linux.
Answer: B
Explanation:
QUESTION NO: 5
You have just upgraded your PC to a 60 gigabyte IDE drive. While partitioning
the drive,
you notice that only 32 gigabytes are available. Which of the following will
most likely allow
you to use the entire drive?
A. Create two smaller partitions of 30 gigabytes each.
B. Set the PC BIOS to use LBA mode.
C. Create a partition that resides entirely below the first 1024 cylinders.
D. Use GRUB or the latest version of LILO as a bootloader.
E. Upgrade the PC BIOS to the latest version available.
Answer: E
Explanation:
QUESTION NO: 6
The lspci command can display information about devices except the following:
A. Card bus speed (e.g. 66Mhz)
B. Card IRQ settings
C. Card vendor identification
D. Card AGP rate (e.g. 1x, 2x, 4x)
E. Card Ethernet MAC address
Answer: E
Explanation:
lspci is a utility for displaying information about all PCI buses in the system
and all devices
connected to them. To display the MAC address of Ethernet, we use the ifconfig
command.
QUESTION NO: 7
If Linux detects an ACPI BIOS on bootup, what does it automatically deactivate?
A. PnP
B. PCI
C. ATA
D. APM
Answer: D
Explanation:
QUESTION NO: 8
What command would help you identify the I/O address range being used by the
network
card?
A. cat/proc/modules
B. cat/proc/devices
C. cat/proc/meminfo
D. cat/io/dma
E. cat/proc/ioports
Answer: E
Explanation:
QUESTION NO: 9
What program is needed to establish a PPP link to another computer?
A. pppd
B. wvdial
C. papd
D. kppp
Answer: A
Explanation:
wvdial - PPP dialer with built-in intelligence. wvdial is an intelligent PPP
dialer, which
means that it dials a modem and starts PPP in order to connect to the Internet.
It
issomething like the chat(8) program, except that it uses heuristics to guess
how to dial
and log into your server rather than forcing you to write a login script.
QUESTION NO: 10 CORRECT TEXT
The___________command allows you to view or change serial port configuration.
Answer: setserial
Answer: /bin/setserial
QUESTION NO: 11
You need to know where all the configuration files for the installed package
named
"postfix" are located. Assuming it was installed with rpm, which command will
list this
information for you?
A. rpm -qc postfix
B. rpm -Vc postfix
C. rpm --config postfix
D. rpm -listconfig postfix
E. rpm -qa --config postfix
Answer: A
Explanation:
QUESTION NO: 12
What tool can you use to print shared library dependencies?
A. ldconfig
B. ldd
C. libdep
D. libpath
E. ldev
Answer: B
Explanation:
ldd command prints the shared libraries required by each program or shared
library
specified on the command line. Example: ldd libdb.so.3 libc.so.6 =>
/lib/tls/libc.so.6
(0x00237000) /lib/ld-linux.so.2 (0x0021e000)
QUESTION NO: 13
While installing from source code you don't see the configuration script. What
command
can you run to compile the code?
A. make configure
B. install
C. install makefile
D. make
Answer: D
Explanation:
The purpose of the make utility is todetermine automatically which pieces of a
large
program need to be recompiled, and issue the commands to recompile them.
example C
programs, since they are most common, but you can use make with any programming
language whose compiler can be run with a shell command. In fact, make is not
limited to
programs. You can use it to describe any task where some files must be updated
automatically from others whenever the others change. To prepare to use make,
you must
write a file called the makefile that describes the relationships among files
in your program,
and the states the commands for updating each file. In a program,typically the
executable
file is updated from object files, which are in turn made by compiling source
files. So, make
command compile the source code.
QUESTION NO: 14
You have an updated RPM called screensaver-1.1.i386. rpm. You have version 1.0
installed.
Using RPM, how do you view the changelog of this file to see if you should
install the
update?
A. rpm -qp --changelogscreensaver-1.1.i386. rpm
B. rpm --changelog screensaver-1.1.i386. rpm
C. rpm -qc screensaver-1.1.i386. rpm
D. rpm -showchangelog screensaver-1.1.i386. rpm
Answer: A
Explanation:
QUESTION NO: 15
You are about to install a new program on an RPM based Linux system. Which of
the
following would be the best way to accomplish this?
A. Get the source code in a tarball and install from that source.
B. Get a source RPM and use rpm to install it.
C. Use rpm to install the program's binaries from an RPM package.
D. Use cpi to extract the binaries from a source RPM and use rpm to install
those sources.
Answer: C
Explanation:
QUESTION NO: 16
You are installing Linux on a workstation for a new employee. Which partition
should be
largest?
A. /
B. /boot
C. /lib
D. /usr
Answer: D
Explanation:
QUESTION NO: 17
How can you update a package only if an earlier version is currently installed
on the
system?
A. rmp -- update rpmname
B. rpm -U rpmname
C. rpm -F rpmname
D. rpm -- force rpmname
E. rpm -u rpmname
Answer: C
Explanation:
Upgrades,but only if the package is currently installed.
QUESTION NO: 18
You are preparing a new set of shared libraries in /usr/local/applib and you
have written
and compiled some code that uses these libraries. You have already performed
and
ldconfig, however the system still cannot find the shared libraries. What is
most likely the
cause of this?
A. You used the wrong compiler.
B. You did not update your PATH variable.
C. You compiled the code with wrong library.
D. You forgot to put the library path inld.so.conf
Answer: D
Explanation:
QUESTION NO: 19
Where can lilo place boot code?
A. The boot ROM
B. The boot RAM
C. The /boot partition
D. The MBR on a hard drive
Answer: D
Explanation:
QUESTION NO: 20
Where does lilo store its boot information?
A. Boot ROM
B. BootRAM
C. Master Boot Record
D. /boot partition
Answer: C
Explanation:
QUESTION NO: 21
To what environment variable will you assign or append a value if you need to
tell the
dynamic linker to look in a build directory for some of a program's shared
libraries?
A. LD_LOAD_PATH
B. LD_LIB_PATH
C. LD_LIBRARY_PATH
D. LD_SHARE_PATH
E. LD_RUN_PATH
Answer: C
Explanation:
QUESTION NO: 22
Which command will allow you to find a specific installed package?
A. rpm -- list rpmname
B. rpm -qvl rpmname
C. rpm rpmname
D. rpm -qv rpmname
E. rpm -f rpmname
Answer: D
Explanation:
Explanation : To query the package whether, package is installed or not : rpm
-qv rpmname
example: rpm -qv ncurses à It shows rpm fullname, version if installed
otherwise it will
display package is not installed.Installed package options: rpm -qa à Lists all
installed
packages rpm –qf filename à Shows owning package rpm -qi rpmname à General
Information of Package rpm –ql rpmname à Shows all files owning by this package
QUESTION NO: 23
Which of the following is very important when installing from source code
(Check TWO that
apply)?
A. Read all documentation included with the source code.
B. Reboot after installing all programs.
C. Manually check to see if all dependencies are met.
D. Use rpm or dpkg goverify the installation.
E. Do not install binaries as the root user.
Answer: A,C
Explanation:
QUESTION NO: 24 CORRECT TEXT
You are building a server that will have many hardware and operating system
upgrades.
The server is the file server for all users on your 100 user network. Which
directory should
have its own mountpoint and/or hard drive?
Answer: /home
QUESTION NO: 25 CORRECT TEXT
The ________ partition is used for virtual memory.
Answer: swap
QUESTION NO: 26
You are building a server that will undergo many hardware and operating system
upgrades.
The server is the file server for all users on your 100 user network. Which
directory should
have its own mountpoint and/or hard drive?
A. /boot
B. /sbin
C. /home
D. /etc
Answer: C
Explanation:
QUESTION NO: 27
What file is read by the program ldconfig?
A. /lib/ld.so
B. /etc/ld.so.conf
C. /etc/ld.so.cache
D. /etc/modules.conf
Answer: B
Explanation:
QUESTION NO: 28
After a minor security incident you are instructed by your lead sys-admin to
verify the
RPM's installed on a running system. Which command will create a complete
report which
you can analyze for changes which may be security related?
A. rpm -Va >report
B. rpm -Qavy >report
C. rpm -Vqt --nomd5 >report
D. rpm --checkfiles >report
E. rpm -Va --nofiles >report
Answer: A
Explanation:
QUESTIONNO: 29
You installed a beta rpm package, but are experiencing some problems with it.
How can
you remove this package?A. rpm -qe rpmname
B. rpm -V --remove rpmname
C. rpm -r rpmname
D. rpm -d rpmname
E. rpm -ev rpmname
Answer: E
To uninstall the package, we use the rpm -ev rpmname or rpm --erase rpmname To
install
package: rpm -ivh rpmname : where -I means install, -v means verbose, -h means
display
the Hash marks. To Upgrade rpm: rpm -Uvh rpmname: where -U means Upgrade. To
Freshen Upgrade: rpm –Fvh rpmname
QUESTION NO: 29
You see following output while trying to install an updated package:
[root@example pub]#
rpm –I gthumb-2.2.0.i386.rpm package gthumb- 1.0.1.i386.rpm is already
installed. Which
command will allow you to install the updated version?
A. rpm -i gthumb-2.2.0.i386.rpm
B. rpm -ivh gthumb-2.2.0.i386.rpm
C. rpm -U gthumb-2.2.0.i3S6.rpm
D. rpm -qu gthumb-2.2.0.i386.rpm
E. rpm -qiv gthumb-2.2.0.i386.rpm
Answer: C
Explanation:
QUESTION NO: 30
Which of the following would do the same as the command cat < file1.txt >
file2.txt?
A. cat < file1.txt file2.txt
B. cat file1.txt >file2.txt
C. cat <file1.txt | file2.txt
D. cat file1.txt | file2.txt
E. cp file1.txt>file2.txt
Answer: B
Explanation:
QUESTION NO: 31 CORRECT TEXT
What command is used to display a file in octal format?
Answer: hexdump
Answer: /usr/bin/hexdump
QUESTION NO: 32 CORRECT TEXT
You wish to execute two commands, one after the other. However, you only want
the
second command to execute if the first is successful. Which character(s) do you
put
between the commands on the command line to accomplish this?
Answer: &&
QUESTION NO: 33
In the vi editor, which of the following commands will delete the current line
at the cursor
and the 16 lines following it (17 lines total)?
A. 17d
B. 17dd
C. 17x
D. d17d
E. 16d
Answer: B
Explanation:
QUESTION NO: 34 CORRECT TEXT
You wish to send the output of a command to standard output (stdout) and save
it to a file.
The command to use is ______________. (Do not specify arguments)
Answer: tee
QUESTION NO: 35
As root you have navigated to directory /B. You wish to move all of the files
and directories
from directory /A to directory /B. Which of the following options would be the
most
appropriate command line to execute this task?
A. cp /a/* .
B. mv -f /A/* .
C. mv -Rf/a/* .
D. cp -f /a/* ..
E. cp -rf /A/* /b/
Answer: B
Explanation:
Files and folders are case-sensitive.
QUESTION NO: 36
What key sequence will suspend the current process and return you to a shell
prompt?
A. Ctrl-z
B. Ctrl-c
C. Ctrl-x
D. Ctrl-d
Answer: A
Explanation:
QUESTION NO: 37
Which TWO commands will find the path for the binary vim?
A. man vim
B. whereis vim
C. apropos vim
D. which vim
Answer: B,D
Explanation:
which and whereis command displays the executable path ofcommands. Example:
which
clearà Shows actually where clear is stored similarly whereis clear.
QUESTION NO: 38 CORRECT TEXT
What command returns the first few lines of a given file?
Answer: head
QUESTION NO: 39
What command changes the priority of the process running with process id of
12345 to the
highest priority?
A. /usr/bin/renice +20 1234
B. /usr/bin/renice -20 12345
C. /bin/setpriority +20 12345
D. /bin/setpriority -20 12345
Answer: B
Explanation:
To change the priority of runningprocess we use the renice command. Default
priority is 0,
highest priority is -20 and lowest priority is 19. The path of renice command
is
/usr/bin/renice.
QUESTION NO: 40
You want to save vi changes to the file myfile with :w!, but vi complains it
can not write to
the file. Therefore, you want to check the write permissions on the file. To do
this without
leaving vi, you type:
A. :!ls -l myfile
B. :\ls -l myfile
C. esc :ls -l myfile
D. :?ls -l myfile
Answer: A
Explanation:
QUESTION NO: 41
Which of the following GNU commands would be the most likely command you'd use
to
find the system load average?
A. top
B. nice
C. loadavg
D. cpustat
E. ps
Answer: A
Explanation:
The top program provides a dynamic real-time view of a running system. It can
display
system summary information as well as a list of tasks currently being managed
by the
Linux kernel. The types of system summary information shown and the types,
order and
size of information
displayed for tasks are all user configurable and thatconfiguration can be made
persistent
across restarts.
QUESTION NO: 42
Which of the following commands is equivalent to kill 1234?
A. kill -1 1234 or kill -s SIGHUP 1234
B. kill -2 1234 or kill -s SIGINT 1234
C. kill -3 1234 or kill -s SIGQUIT 1234
D. kill -9 1234 or kill -s SIGKILL 1234
E. kill -15 1234 or kill -s SIGTERM 1234
Answer: E
Explanation:
QUESTION NO: 43
What command would execute cmd1 followed by cmd2, regardless of the exit status
of
cmd1?
A. cmd1 cmd2
B. cmd1 | cmd2
C. cmd1 ; cmd2
D. cmd1 &&cmd2
E. cmd1 || cmd2
Answer: C
Explanation:
QUESTION NO: 44 CORRECT TEXT
You have a text file with tab-separated values, but your application needs them
space-
separated. What command would you use from the Bash shell to achieve this?
Please fill in
the command only, without any options.
Answer: expand
Explanation: The expand command is used to convert from tab to space. Example:
expand
-t 2 test a. It will convert the tab into two spaces.
QUESTION NO: 45
Which command will print to standard out only the lines that do not begin with
# (pound
symbol) in the file foobar?
A. /bin/grep ^# foobar
B. /bin/grep -v ^# foobar
C. /bin/grep #$ foobar
D. /bin/grep -v #$ foobar
Answer: B
Explanation:
QUESTION NO: 46
What command will remove duplicate lines from a sorted file?
A. filter
B. trim
C. uniq
D. wc
Answer: C
Explanation:
uniq - remove duplicate lines from a sorted file
QUESTION NO: 47
Which command line option would you use to restrict the GNU find command to
searching
a particular number of subdirectories?
A. --max-dirs
B. -dirmax
C. -maxdepth
D. -s
E. -n
Answer: C
Explanation:
QUESTION NO: 48
What is the disadvantage of using the command kill -9 ?
A. A core dump file will be created.
B. It affects the entire process group.
C. It makes excessive use of systemresources.
D. The action can be blocked by buggy or malicious processes.
E. The affected process is unable to clean up before exiting.
Answer: E
Explanation:
Topic 2, Volume B
QUESTION NO: 49
To prevent a command run as root from sending both standard out (stdout) and
standard
error (stderr) to any terminal or other file or device, which of the following
strings should
be appended to the command?
A. >/dev/null
B. >/dev/null 1>&2
C. >/dev/null 2>&1
D. 1>&2 >/dev/null
E. 2>&1 >/dev/null
Answer: C
Explanation:
QUESTION NO: 50
You want to search the file myfile for all occurances of string containing at
least five
characters, where character number 2 and 5 are 'a' and character number 3 is
NOT 'b'.
Which command would you use?
A. grep a*^b*a myfile
B. grep .a[^b].a myfile
C. grep .[a].*.[a] myfile
D. grep .a*^b..a myfile
Answer: B
Explanation:
QUESTION NO: 51
What does the following command do? cat '$TEST'
A. Displays a bash syntax error message.
B. Displays the contents of the file named $TEST if it exists.
C. Waitsfor the user to enter text and then echos the text back.
D. Displays the contents of the file named inside the back quotes.
E. Displays the contents of the named by the environment variable TEST.
Answer: B
Explanation:
QUESTION NO: 52
You want to the command foo to take its input from the file foobar and send its
output to
the program bar. Which of the following command lines will do this?
A. foo < foobar | bar
B. foo < foobar > bar
C. foo | foobar > bar
D. foo | bar < foobar
E. foo > bar < foobar
Answer: A
Explanation:
QUESTION NO: 53
Which of the following commands would display the lines containing capital
letters form
the file "turkey.txt"?
A. cat turkey.txt|wc -|
B. grep -n [A-Z] turkey.txt
C. cat turkey.txt|wc -w [A-Z]
D. grep -v [A-Z] < turkey.txt
E. for [A-Z]in turkey.txt | count
Answer: B
Explanation:
QUESTION NO: 54
In Bash, inserting "1>&2" after a command redirects
A. standard error to standard input
B. standard input to standard error
C. standard output to standard error
D. standard error to standard output
E. standard output to standard input
Answer: C
Explanation:
QUESTION NO: 55
Identify the proper device for the third partition, on the second hard disk, on
the first IDE
controller on a PC system.
A. /dev/hdb3
B. /dev/hd1b3
C. /dev/hdc1b3
D. /dev/hdc1d2p3
Answer: A
Explanation:
Harddisk Recognization Primary Master /dev/hda Primary Slave /dev/hdb Secondary
Master
/dev/hdc Secondary Slave /dev/hdd According To question, Device name is
/dev/hdb and
paratition number is 3. /dev/hdb3
QUESTION NO: 56
What umask will set the file permissions on a newly created file to -rw-r--r--
(644)?
A. 0002
B. 0022
C. 0224
D. 0246
Answer: B
Explanation:
umask command is used to display and set the default permissions. Here in
questionasking for the umask value of newly created file having permission
QUESTION NO: 57
Which command will create an ext3 filesystem on /dev/hda2?
A. /sbin/mke2fs -d /dev/hda2
B. /sbin/mke2fs -j /dev/hda2
C. /sbin/mke2fs -m 3 /dev/hda2
D. /sbin/mke2fs -c ext3 /dev/hda2
Answer: B
Explanation:
mke2fs - create an ext2/ext3 filesystem -j Create the filesystem with an ext3
journal. If the –j
option is not specified, the default journal parameters will be used to create
an
appropriately sized journal (given the size of the filesystem) stored within
the filesystem.
Note that you must be using a kernel, which has ext3 support in order to
actually make use
of the journal.
QUESTION NO: 58
What is the proper option to put in /etc/fstab to enable group quotas for a
particular
parition?
A. groupquota
B. grpquota
C. groupquoatas
D. grpquotas
Answer: B
Explanation:
QUESTION NO: 59
Which utility would you use to change how often a filesystem check was
performed over an
EXT2 filesystem (without losing any data stored on that filesystem)?
A. mod2fs
B. fsck
C. tune2fs
D. mke2fs
E. fixe2fs
Answer: C
Explanation:
QUESTION NO: 60
To allow a regular user account to mount and unmount a filesystem (for
instance, a cdrom
or floppy), which option will need to be added to the corresponding line in
/etc/fstab?
A. nouidchk
B. alluser
C. user
D. auto
Answer: C
Explanation:
Answer C is correct. user options is used to allow an ordinary user to mount
the file
system. The name of the mounting user is written to mtab so thatuser can
unmount the file
system again.
QUESTION NO: 61
You have run out of disk space on a partition. Which of the following would be
an easy way
to move data to a new partition without reconfiguring the path to the data in
existing
applications?
A. Run ext2fs ACL.
B. Use a hard link.
C. Use a symbolic link.
D. Use the loopback device.
E. Create a block device offset.
Answer: C
Explanation:
A Symbolic link points to another file and the contents of link file is
referenced file. So,
symbolic linkedfile occupied the very less space the original file.
QUESTION NO: 62
What TWO permissions must a user have in order to run a shell script?
A. read
B. write
C. execute
D. browse on the directory
E. users cannot run shell scripts
Answer: A,C
Explanation:
QUESTION NO: 63 CORRECT TEXT
Which command (without options) would you use to display how much space is
available
on all partitions?
Answer: df
Answer: /bin/df
QUESTION NO: 64
You are using quota on your system. How can you see disk quota details?
A. repquota
B. quota -l
C. quota
D. quotachech
E. quota --list
Answer: A
Explanation:
QUESTION NO: 65
You are experimenting with a binary in /tmp/foo.d that expects its
configuration file at
/etc/foo.conf. You don't want to save it there, but use a symbolic link to
/tmp/foo.d/foo.conf
instead. Which command would accomplish that?
A. ln -s /tmp/foo.d/foo.conf /etc/foo.conf
B. ln /tmp/foo.d/foo.conf /etc/foo.conf
C. ln -s /etc/foo.conf /tmp/foo.d/foo.conf
D. ln /etc/foo.conf /tmp/foo.d/foo.conf
Answer: A
Explanation:
Thereare two types of link a. Soft link b. Hard link.
b. Soft link à Can create for directory also, can span multiple partitions but
available until
and unless Original Files remain. Syntax for Soft link ln -s originalfile
linkfile
b. Hard link à One separate Physical File, can't create for directory, can't
span multiple file
but remains the link file if original file removed.
Syntax for Hard link ln originalfile linkfile
QUESTION NO: 66
Which of the following Linux filesystems pre-allocates a fixed number of inodes
at the
filesystem's make/creation time, and does NOT generate them as needed?
A. ext3
B. jfs
C. reiserfs
D. xfs
Answer: A
Explanation:
QUESTION NO: 67
You have just added a CD-ROM drive (/dev/hdd) to your system and have added it
to your
fstab. Typically you can use which of the following commands to mount media in
that drive
to /mnt/cdrom?
A. mount/dev/cdrom/mnt/cdrom
B. mount/dev/cdrom
C. mount -t cdrom/dev/cdrom/mnt/cdrom
D. mount/mnt/cdrom
E. automount/mnt/hdd/mnt/cdrom
Answer: D
Explanation:
QUESTION NO: 68 CORRECT TEXT
You have written a custom tool on your local system. Following the Filesystem
Hierarchy
Standard (FHS), where should you install the binaries to be available to all
users on your
system? Answer:
Answer: /usr/local/bin
Answer: /usr/local/bin/
QUESTION NO: 69
What does the command mount -a do?
A. It mounts the floppy disk for all users.
B. It shows all mounted file systems.
C. It opens /etc/fstab to edit.
D. It mounts all file systems listed in /etc/fstab.
Answer: D
Explanation:
QUESTION NO: 70
What would the following line accomplish if run as root? chown -R bert
/home/bert/*
A. Nothing, this command is invalid.
B. It would revoke bert's ownership of all files in /home/bert to bert.
C. It would change user ownership of all files in /home/bert to bert.
D. It would set the group ownership of the directory /home/bert to bert
E. It would set ownership of all files and subdirectories in /home/bert to bert
Answer: E
Explanation:
QUESTION NO: 71
Which one of the following programs will only find files that are in your PATH?
A. locate
B. slocate
C. which
D. find
Answer: C
Explanation:
QUESTION NO: 72
What does the Filesystem Hierarchy Standard enable? (Select TWO answers)
A. Software to predict the location of installed files and directories
B. Software to predict theownership and access rights of installed files and
directories
C. Users to predict the location of installed files and directories.
D. Users to predict how the filesystem should be formatted according to need.
Answer: A,C
Explanation:
QUESTION NO: 73
You want the default permissions for your files to be -rw-r----- . HOW must you
set umask?
A. 037
B. 640
C. 038
D. 027
Answer: D
Explanation:
QUESTION NO: 74
Which chown command will change the ownership to foo and the group to bar on a
file
named biglist?
A. chownfoo/bar biglist
B. chown -u foo -g bar biglist
C. chown foo:bar biglist
D. chown --user foo --group bar biglist
Answer: C
Explanation:
QUESTION NO: 75
Which of the following programs will only find files that are in your PATH?
A. locate
B. slocate
C. which
D. find
Answer: C
Explanation:
QUESTION NO: 76
Which option must be listed in /etc/fstab to activate user quotas
automatically?
A. quota
B. user
C. quotaon
D. usrquota
Answer: D
Explanation:
To implement quota in partitions, we should mount withusrquota for user quota,
grpquota
for group quota. Example of mounting /home using usrquota and grpquota options.
LABEL=/home /home ext3 defaults,usrquota,grpquota 1 2
QUESTION NO: 77
Which of the following commands makes /bin/foo executable by everyone but only
writable
by its owner?
A. chmod 557 /bin/foo
B. chmod o +rwx, a+rx /bin/foo
C. chown 557 /bin/foo
D. chmod 755 /bin/foo
Answer: D
Explanation:
QUESTION NO: 78
You are having problems with a particular font and you want to see if its
directory is
included in XF86Config. Which section contains this information?
A. Paths
B. Fonts
C. Files
D. Graphics
Answer: C
Explanation:
/usr/x16r6/lib/fonts
QUESTION NO: 79
You have just set up the X Display Manager as your default display manager.
What file
should you
edit to change the default background for it?
A. /etc/X11/xdm/Xsetup
B. /etc/X11/prefdm
C. /etc/X11/XF86Config
D. /etc/X11/xdm.conf
Answer: A
Explanation:
QUESTION NO: 80
Which of the following lines from /etc/X11/XF86Config indicates what fonts can
be found on
a font server?
A. FontPath= server
B. Fonts "unix/:7100"
C. FontPath "unix/:7100"
D. Fonts= server
E. Fontserver = "servername"
Answer: C
Explanation:
QUESTION NO: 81
You are the system administrator for a consulting firm where several people use
Linux as
their desktop operating system. One of your users has installed a commercial
publishing
program that works under X on a variety of UNIX and Linux platforms. The user
made a
series of configuration changes regarding the initial window size, location and
color. Now,
he is having difficulty undoing these changes and is asking for your help. In
which file
would you think you would most likely find the configuration settings you are
seeking to
change?
A. ~/.xinitrc
B. ~/.xconfig
C. ~/.Xdefaults
D. ~/.XF86Config
E. /etc/X11/XF86Config
Answer: C
Explanation:
QUESTION NO: 82
You are using an application that you want to appear on the screen of another
machine.
What environment variable would you have to set or edit to achieve this?
A. DISPLAY
B. REMOTE
C. REMOTE_XWINDOW
D. SCREEN
Answer: A
Explanation:
To share the terminal between multiple hosts, we can export display.
Example
Suppose you want to run application on Certkiller B from Certkiller A.
Certkiller B in GUI
Terminal:# xhost +192.168.0.1 Certkiller A in GUI Terminal:# export
DISPLAY=192.168.0.2:0
# Xterm
QUESTION NO: 83
After installing and configuring Xfree86, you notice that when you start X, the
display is not
centered. What program can you run to find a better modeline setting?
A. XF86Setup
B. xf86config
C. xvidtune
D. xvideoagent
Answer: C
Explanation:
QUESTION NO: 84 CORRECT TEXT
You are running X in networked environment. You want to allow anyone on your
network to
display their X applications on your desktop. What command can you use to
disable all
access control for X?
Answer: xhost +
QUESTION NO: 85
You just started X for the first time and noticed that the display does not use
the entire
screen. What program can you use to fix this?
A. xvidtune
B. xf86config
C. XF86Setup
D. tweakscreen
Answer: A
Explanation:
QUESTION NO: 86
Which of the following is the default XFree86 configuration file?
A. /usr/X11R6/etc/XF86Config
B. /var/X11/XF86Config
C. /etc/X11/XF86Config
D. /usr/etc/X11/XF86Config
Answer: C
Explanation:
QUESTION NO: 87
You have just set up the Gnome Display Manager as your default display manager.
What
file should you edit to change the default greeting for it?
A. /etc/X11/prefdm
B. /etc/X11/XF86Config
C. /etc/X11/gdm.conf
D. /etc/X11/gdm/lnit/Default
Answer: D
Explanation:
QUESTIONNO: 90
The command cat /proc/dma will show you what?
A. Whether DMA is enabled
B. Which DMA channels are in use
C. Which DMA mode is in use
D. General information about DMA on the machine
Answer: B
Explanation /proc/dma This file contains alist of the registered ISA direct
memory access
(DMA) channels in use. A sample /proc/dma files looks like the following:
4: cascade
It shows whether DMA is enabled or not.
QUESTION NO: 88
You are formatting a single hard disk for a Linux install. What is the maximum
number of
primary partitions you can create?
A. 0
B. 1
C. 2
D. 3
E. 4
F. 5
Answer: E
Explanation:
Generally in one System we can connect four Physical Harddisks. As a Primary
Master,
Primary Slave, Secondary Master,Secondary Slave. In One System: Either four
Primary
partitions or 1 Primary or 2 Primary or 3 Primary + 1 extended and all logical
partitions will
be create under extended partations. Hardisk device recognized as follows
Primary Master
: /dev/had Primary Slave : /dev/hdb Secondary Master : /dev/hdc Secondary Slave
:
/dev/hdd Suppose you have only single harddisk and going to install Linux,
Maximum you
can create 4 primary partitions. If you create four primary partitions you
can't create
extended partitionsthat mean no logical partitions can create.
QUESTION NO: 89
After a minor security incident you are instructed by your lead sys-admin to
verify the
RPM's installed on running system. Which command will create a complete report
which
you can analyze for changes which may be security related?
A. .rpm-Va>report
B. rpm-Qavy > report
C. rpm-Vqt-- nomd5>report
D. rpm-checkfiles >report
E. rpm-Va-nofiles > report
Answer: A
Explanation:
QUESTION NO: 90 CORRECT TEXT
You are compiling some software from source. After running ./configure with the
appropriate arguments and no errors, what is the next command to run?
Answer: make
Explanation: The purpose of the make utility is to determine automatically
which
pieces of a large program need to be recompiled, and issue the commands to
recompile
them. example C programs, since they are most common, but you can use make with
any
programming language whose compiler can be run with a shell command. In fact,
make is
not limited to programs. You can use it to describe any task where some files
must be
updated automatically from others whenever the others change.
To prepare to use make, you must write a file called the makefile that
describes the
relationships among files in your program, and the states the commands for
updating each
file. In a program, typically the executable file is updated from object files,
which are in turn
made by compiling source files.
QUESTION NO: 91
You have two shell scripts, foo and bar. You wish to have bar execute if foo
returns an exit
status of 0 Select the correct command:
A. foo; bar
B. foo || bar
C. foo && bar
D. foo % bar
Answer: C
Explanation:
&& ?Logical AND Operator || ?Logical OR Operator ! ?Logical NOT Operator
Correct
Answer is C because first tried to execute foo. If foo executes without any
error then
executes bar. If any error occurs in foo then exit from command.
QUESTION NO: 92
In order to append the output of ls to a file called bazz, which of the
following command
lines would you use?
A. ls >bazz
B. ls >& bazz
C. ls &> bazz
D. ls >> bazz
Answer: D
Explanation:
The correct answer is ‘ls >> bazz’ because it is appended.
QUESTION NO: 93
Which command is used to dump files in octal format?
A. od
B. octdump
C. dumpoct
D. cat -o
Answer: A
Explanation:
Answer A is correct. od command dump files in octal and other formats. Example:
od test it
will display the all contents of file in octal format.
QUESTION NO: 94
You have created a really long letter and after you are done, you notice that
you used the
name "Bob" many times but your forgot to capitalize it in many instances. Which
command
would you replace "bob" with "Bob" in all instances and generate a new letter
for printing?
A. sed `/bob/Bob' letter > newletter
B. sed s/bob/Bob/ letter < newletter
C. sed `s/bob/Bob' letter >newletter
D. sed `s/bob/Bob/g' letter > newletter
E. sed s/bob, Bob/' letter > newletter
Answer: D
Explanation:
QUESTION NO: 95
You are logged in as user tux1, but now you want to switch users to tux2 with
tux2's
environment. How would you do this?
A. su tux2
B. su -e tux2
C. su - tux2
D. su -m tux2
E. su -f tux2
Answer: C
Explanation:
QUESTION NO: 96
You wish to kill a process with a PID of 123. Select the command which will
allow the
process to "clean up" before exiting.
A. kill -1 123
B. kill -9 123
C. kill -15123
D. kill -17 123
Answer: C
Explanation:
To terminate the process we use kill command. But we should know the process
ID. In
QUESTION:s PID is specified to 123. Syntax of kill command is: kill signal PID
Where -9 is
the powerful signal then other signal which kill the process.
QUESTION NO: 97
You have read/write permission on an ordinary file foo. You have just run ln
foo bar. What
would happen if you ran rm foo?
A. foo and bar would both be removed.
B. foo would be removed whilebar would remain accessible.
C. foo would be removed. bar would still exist but would be unusable.
D. Both foo and bar would remain accessible.
E. You would be asked whether bar should be removed.
Answer: B
Explanation:
Topic 3, Volume C
QUESTION NO: 98
Which command will print line numbers before each line in a file?
A. ln
B. nl
C. cat -n
D. numline
Answer: B
Explanation:
QUESTION NO: 99
You need to create a simple hierarchy of directories:
images/photos/summer/ottawa/. None
of the directories on that path exists. What command will create all of the
needed
directories in one step?
A. mkdir -r images/photos/summer/ottawa/
B. mkdir -R images/photos/summer/ottawa/
C. mkdir -p images/photos/summer/ottawa/
D. mkdir -P images/photos/summer/ottawa/
E. mkdir -m images/photos/summer/ottawa/
Answer: C
Explanation:
-p options means no error if existing, make parent directories as needed. It
will creates the
directory images/photos/summer/Ottawa. Where images is the parent directory of
photos,
photos is theparent directory of summer etc.
QUESTION NO: 100
While using the vi editor, you wish to move ahead one page. You should press
the control
key and:
A. A
B. D
C. F
D. U
Answer: C
Explanation:
To move screen in vi Editor, F Ã go forwardone full screen B Ã go back one full
screen D Ã
go down half screen U Ã go up half screen
QUESTION NO: 101
You enter the command date +%M. Wat does the output show you?
A. the current year
B. the current month
C. the current hour
D. the current minute
E. the current second
Answer: D
Explanation:
date command displays the current date and time information as well as we can
set new
date and time to system by supplying -s option. To display time: date +%T To
display
Minute: date +%M To display Month : date +%m%% a literal % %a locale's
abbreviated
weekday name (Sun..Sat) %A locale's full weekday name, variable length
(Sunday..Saturday) %b locale's abbreviated month name (Jan..Dec) %B locale's
full month
name, variable length (January..December) %c locale's date and time (Sat Nov 04
12:02:33
EST 1989) %C century (year divided by 100 and truncated to an integer) [00-99]
%d day of
month (01..31) %D date (mm/dd/yy) %e day of month, blank padded ( 1..31) %F
same as %Y%
m-%d %g the 2-digit year corresponding to the %V week number %G the 4-digit
year
corresponding to the %V week number %h same as %b %H hour (00..23) %I hour
(01..12) %j
day of year (001..366) %k hour ( 0..23) %l hour ( 1..12) %m month (01..12) %M
minute (00..59)
%n a newline %N nanoseconds
(000000000..999999999) %p locale's upper case AM or PM indicator (blank in many
locales)
%P locale's lower case am or pm indicator (blank in many locales) %r time, 12-
hour
(hh:mm:ss [AP]M) %R time, 24-hour (hh:mm) ond %t a horizontal tab %T time, 24-
hour
(hh:mm:ss) %U week number of year with Sunday as first day of week (00..53) %V
week
number of year with Monday as first day of week (01..53) %W week number of year
with
Monday as first day of week (00..53) %x locale's date representation (mm/dd/yy)
%Xlocale's
time representation (%H:%M:%S) %y last twodigits of year (00..99) %Y year
(1970...) %z
RFC-2822 style numeric timezone (-0500) (a nonstandard exten- sion)
%Z time zone (e.g., EDT), or nothing if no time zone is deter- minable
QUESTION NO: 102
When you are looking for brief information about a program in your PATH with
its
associated man pages, you would use ...
A. which
B. whereis
C. locate
D. where
Answer: B
Explanation:
Whereis - locate the binary, source, and manual page files for a command
Syntax: whereis
[options] command Options: -b à Search only for binaries -m à Search only for
manual
section -s à Search only for sources.
QUESTION NO: 103
Which command will print out the attributes of the file foobar?
A. ls --attrfoobar
B. lsattr foobar
C. printattr foobar
D. fileattr foobar
Answer: B
Explanation:
lsattr - list file attributes on a Linux second extended file system
QUESTION NO: 104
Which of the following commands will list the quota for the user foobar?
A. repquota foobar
B. quota foobar
C. lsquota foobar
D. printquota foobar
Answer: B
Explanation:
quota - display disk usage and limits. Quota displays user's disk usage and
limits. By
default only the user quotas are printed. Either quota -uusername Or quota
username To
display group quota: quota -g groupname
QUESTION NO: 105
The command mkfs -t ext3 /dev/hdb1 -T largefile creates what size of inode?
A. 4 kilobyte
B. 1 megabyte
C. 2 megabyte
D. 4 megabyte
Answer: B
Explanation:
-T fs-type : Specify how the filesystem is going to be used, so that mke2fs can
choose
optimal filesystem parameters for that use. Some Filesystem type are: news :
One inode
per 4kb
block largerfile : one inode per megabyte largerfile4 : one inode per 4
megabytes
QUESTION NO: 106
In XF86Config which section is concerned with fonts?
A. the Fonts section
B. The Files section
C. The xfsCodes section
D. The Graphics section
E. The modeline section
Answer: B
Explanation:
QUESTION NO: 107
You have a USB storage device that you cannot get working. You have enabled all
appropriate USB options in the latest 2.2 kernel but still cannot get your
device working.
What is most likely the source of the problem?
A. You have not configured your usb.usermap properly
B. You are using the wrong kernel for this type of device
C. The USB device is not USB 2.0 compliant
D. There is a USB resource conflict
Answer: B
Explanation:
QUESTION NO: 108 CORRECT TEXT
Which utility can be used to convert a . rpm package to .deb package format?
(Without
arguments)
Answer: alien
QUESTION NO: 109
What is a reasonable command to uninstall a Debian package from your system?
A. dpkg -Ra pkgname
B. dpkg -R pkgname
C. dpkg -r pkgname
D. dpkg -ra pkgname
Answer: C
Explanation:
QUESTION NO: 110
You want to install a new software package, but it is only available in RPM
format and you
are running Debian Linux. Which of the following would help you to install it
on your
system?
A. alien
B. apt-conf
C. dselect
D. cpio
Answer: A
Explanation:
QUESTION NO: 111
What command will uninstall a package but leave its configuration files in case
a package
is re-installed?
A. none, no command will do this
B. dpkg -s pkgname
C. dpkg -L pkgname
D. dpkg -P pkgname
E. dpkg -r pkgname
Answer: E
Explanation:
QUESTION NO: 112
You have not run apt-get on a system for some time, but it has been run on the
system
before. What apt-get command would you run to download the latest list of
packages, but
not the packages themselves?
A. apt-get build-dep
B. apt-get mirror-select
C. apt-getupdate
D. apt-get upgrade
E. apt-get dist-upgrade
Answer: C
Explanation:
QUESTION NO: 113
You want to examine the changelog for the installed package postfix. Which
command will
display the changelog?
A. rpm -Vc postfix
B. rpm -qpil postfix
C. rpm --changelogpostfix
D. rpm -q --changelog postfix
E. rpm -qa --changelog postfix
Answer: D
Explanation:
QUESTION NO: 114 CORRECT TEXT
In a networked environment, what command will grant anybody permission to
display their
X applications on a desktop? (Include both the command and argument(s).)
Answer: xhost +
QUESTION NO: 115 CORRECT TEXT
Which file the /proc filesystem lists parameters passed from the bootloader to
the kernel?
Answer: cmdline
Answer: /proc/cmdline
QUESTION NO: 116
Which Debian package system command will list all partially installed packages
and
suggest how to get them correctly installed?
A. dpkg -C
B. apt-get -u
C. dpkg -Dh
D. dpkg -l
E. apt-get -y
Answer: A
Explanation:
QUESTION NO: 117 CORRECT TEXT
Which environment variable you have to setup to use shared libraries that are
not in the
standard search path?
Answer: LD_LIBRARY_PATH
QUESTION NO: 118
What single command (no options or arguments) can be used to fully extract a
file called
abc.tar.bz2?
A. gzip
B. gunzip
C. tar
D. bz2unzip
Answer: C
Explanation:
QUESTION NO: 119
A Makefile typically contains which targets?
A. CFLAGS, CPPFLAGS, LIBS, LDFLAGS
B. clean, install, uninstall
C. PATHS, DESTDIR, LIBS, LDFLAGS
D. prefix, exec_prefix, bindir, mandir
Answer: B
Explanation:
QUESTION NO: 120
You have finished updating and resolving dependencies for some source code.
What
command should you run before recompiling the code into binary form?
A. make clean
B. make all
C. makedep
D. make install
Answer: A
Explanation:
QUESTION NO: 121
What is the difference between the --remove and the--purge action with the dpkg
command?
A. --remove removes the program, --purge also removes the config files
B. --remove only removes the program, --purge only removes the config files
C. --remove removes a package, --purge also removes all packages dependent onit
D. --remove removes only the package file itself, --purge removes all files
related to the
package
Answer: A
Explanation:
QUESTION NO: 122
Which RPM command will output the name of the package which installed the file
/etc/exports?
A. rpm -F /etc/exports
B. rpm -qf /etc/exports
C. rpm -Kl /etc/exports
D. rpm -qp /etc/exports
E. rpm -ql /etc/exports
Answer: B
Explanation:
QUESTION NO: 123
Which file should be edited to select the network locations from which Debian
installation
package files are loaded?
A. /etc/dpkg/dpkg.cfg
B. /etc/apt/apt.conf
C. /etc/apt/apt.conf.d
D. /etc/apt/sources.list
E. /etc/dpkg/dselect.cfg
Answer: D
Explanation:
QUESTION NO: 124
Which command will list all the files installed from the RPM package file
named, vorbistools-
1.1.i386. rpm?
A. rpm -qf vorbis-tools-1.1.i386.rpm
B. rpm- F vorbis-tools-1.1.i386.rpm
C. rpm -pf vorbis-tools-1.1.i386.rpm
D. rpm -ql vorbis-tools-1.1.i386.rpm
E. rpm -qlp vorbis-tools-1.1.i386.rpm
Answer: E
Explanation:
QUESTION NO: 125
Which of the following programs is typically used to query installed debian
packages?
(Please select TWO that apply)
A. dpkg
B. apt-cache
C. apt-conf
D. dselect
Answer: A,D
Explanation:
QUESTION NO: 126 CORRECT TEXT
You are formatting a single hard disk for a Linux install. What is the maximum
number of
primary partitions you can create?
Answer: 4
Answer: four
QUESTION NO: 127
An installed package is broken. In order to go back to the previous version of
the same
package which RPM option should be used?
A. --replacefiles
B. --replacepkgs
C. --oldpackage
D. --nodeps
Answer: C
Explanation:
QUESTION NO: 128
George is planning a partition scheme for a new Linux installation. Which THREE
directories should he consider for separate partitions? (Select three)
A. /etc
B. /home
C. /var
D. /lib
E. /tmp
Answer: B,C,E
Explanation:
QUESTION NO: 129 CORRECT TEXT
USB fax/modems that conform to this subclass of the Communication Device Class
(CDC)
vendor neutral standard are Linux compatible (answer is a 3 letter acronym)
Answer: acm
QUESTION NO: 130 CORRECT TEXT
The _____________ command displays ISA plug-and-play devices resource
information.
Answer: pnpdump
QUESTION NO: 131
All items are required to enable USB support on a Linux system EXCEPT.
A. A kernel that has USB driver support
B. A USB 2.0 compatible device
C. A supported controller chipsuch as DHCI, UHCI, or EHCI
D. A kernel that supports hot-pluggable devices
Answer: B
Explanation:
QUESTION NO: 132
You are running Linux 2.0.36 and you need to add a USB mouse to your system.
Which of
the following statements is true?
A. You need to rebuildthe kernel
B. You need to upgrade the kernel
C. You need to load the USB modules for your existing modular kernel
D. USB support is not available in Linux
Answer: B
Explanation:
QUESTION NO: 133
In order to save and restore your sound card's configuration between sessions,
the ALSA
sound system uses what program?
A. setalsa
B. setsound
C. soundctl
D. alsactl
E. alsaset
Answer: D
Explanation:
QUESTION NO: 134
According to the File System Hierarchy Standard, the lost+found directory is
used for:
A. files withunknown owners
B. missing device files found by/proc
C. unknown binary files found by find
D. unlinked files found by fsck
Answer: D
Explanation:
QUESTION NO: 135
The sticky bit is usually set on
A. /var/log
B. /tmp
C. /home
D. log liles
Answer: B
Explanation:
QUESTIONNO: 139
How can you turn off the group quota in /pub?
A. quotaoff /pub
B. quotaoff -gv /pub
C. quotadown /pub
D. rm /pub/quota.group
Answer: B
QUESTION NO: 136
You are looking for an executable file foo. Select the command that would
search for foo
within directories set in the shell variable, PATH.
A. locate
B. which
C. find
D. query
E. whereis
Answer: B
Explanation:
QUESTION NO: 137
What key combination is used to forcibly halt the X server in the event of the
graphical session becoming unusable (e.g., desktop manager or full screen
application hanging)?
A. press CTRL+ALT+DEL
B. press CTRL+ALT+BACK_SPACE
C. press CTRL+ALT+DEL twice
D. press CTRL+ALT+F1 then run
Answer: B
Explanation:
QUESTION NO: 138
The X program _________ is often used to make minor keyboard adjustments, like
proper
Back
space/Delete mapping.
A. xkbdmap
B. kbdmap
C. xmodmap
D. modmap
Answer: B
Explanation:
QUESTION NO: 139
Users may create and edit a configuration file in their home directory that can
tell the X
window system what window manager they wish it to start when they log in. What
file is
that?
A. $HOME/.wmrc
B. $HOME/.startx
C. $HOME/.Xdefaults
D. $HOME/.xserverrc
E. $HOME/.xinitrc
Answer: E
Explanation:
QUESTION NO: 140
The system bell sound is annoying you. Which of the following can you use to
change this
and other user X preferences?
A. xset
B. xconf
C. xbell
D. xmag
E. xpref
Answer: A
Explanation:
QUESTION NO: 141 CORRECT TEXT
What application can be used in place of xhost? Please enter only the name
without path.
Answer: xauth
QUESTION NO: 142 CORRECT TEXT
What command with all options and/or parameter will send the signal USR1 to any
executing process of program apache2?
Answer: killall -s SIGUSR1 apache2
QUESTION NO: 143
What command line redirection characters instruct the shell to read from the
current input
source until a specific word, on a separate line and without and trailing
spaces, is reached?
A. <<
B. <l
C. !<
D. $<
Answer: A
Explanation:
QUESTION NO: 144
Pressing the Ctrl-C combination on the keyboard while a command is executing in
the
foreground sends which of following signal codes?
A. 1 (SIGHUP)
B. 2 (SIGINT)
C. 3 (SIGQUIT)
D. 9 (SIGKILL)
E. 15 (SIGTEPM)
Answer: B
Explanation:
QUESTION NO: 145 CORRECT TEXT
Consider the following output:
prompt> myapp
[1]+ Stopped myapp
This output was the result of the user pressing the keyboard combination of the
Ctrl key
and what
letter key? Enter only the single (1) letter as your answer
Answer: z
QUESTION NO: 146
What is the output when the following shell script executes?
Cat <<foobar
Hello foobar
foobar
A. The contents of the file foobar
B. Hello
C. No output but a file named foobar is created
D. Hello foobar
E. Hello foobar
Answer: D
Explanation:
Topic 4, Volume D
QUESTION NO: 147
Which of the following commands will display the last 30 lines of
/var/log/bigd.log as well
as new content as it is appended to the file by another process?
A. cut -30 -v /var/log/bigd.log
B. head -30 -e /var/log/bigd.log
C. tail -f -n 30 /var/log/bigd.log
D. tac -30/var/log/bigd.log
E. cat -r -n 30 /var/log/bigd.log
Answer: C
Explanation:
QUESTION NO: 148
You wish to kill a process with a PID of 123. Select the command which will
allow the
process to "clean up" before exiting.
A. kill -1 123
B. kill -9 123
C. kill -15 123
D. kill -17 123
Answer: C
Explanation:
QUESTION NO: 149
Which of the following commands will change all CR-LF pairs in an imported text
file,
userlist.txt, to Linux standard LF characters and store it as newlist.txt?
A. tr '\r\n' '' <userlist.txt > newlist.txt
B. tr -c '\n\r' '' < newlist.txt > userlist.txt
C. tr -d '\r' < userlist.txt > newlist.txt
D. tr '\r' '\n' userlist.txt newlist.txt
E. tr -s '^M' '^J' userlist.txt newlist.txt
Answer: C
Explanation:
QUESTION NO: 150
Which of the following commands will find the string foo in the file filel.txt,
regardless of
foo being in upper or lowercase letters?
A. cat file1.txt | grep -i foo
B. cat file1.txt >grep -n foo
C. grep -i foo | file1.txt
D. grep -n file1.txt < foo
E. grep -n foo file1.txt
Answer: A
Explanation:
QUESTION NO: 151
The command used to determine a file's type is
A. type
B. find
C. file
D. ls
Answer: C
Explanation:
QUESTION NO: 152
Many people like the vi text editor but the default bash command line editor
recognizes
emacs keystrokes. What command entered into abash initialization file will have
bash
recognize vi keystrokes after login?
A. history -p vi
B. alias emacs=vi
C. HISTCMD=vi
D. set -o vi
E. unset emacs
Answer: D
Explanation:
QUESTION NO: 153
You ran out of space and added a eighth disk to your SCSI-I system. When you
try to start,
the system no longer boots. What is most likely the cause of this problem?
A. SCSI-I supports only 8 devicesincluding the adaptor
B. SCSI-I supports only6 disks per adaptor
C. There is a SCSI-ID conflict that causes that problem
D. You forgot to set the SCSI-ID #8 for the new disk
Answer: A
Explanation:
QUESTION NO: 154
Keyboards and mice are members of which class of USB devices?
A. Communication Device Class
B. Human Interface Device Class
C. Mass Storage Device Class
D. Data Interface Device Class
Answer: B
Explanation:
QUESTION NO: 155
Which of the following commands will print the current video settings to stdout
in
XF86Config "Modeline" format?
A. xinfo -mode
B. xset -info
C. xf86config -list
D. xvidtune -show
Answer: D
Explanation:
QUESTION NO: 156
With xorg 7.0, what is the name of the default font server?
A. xfserv
B. xfs
C. fonts
D. xfstt
E. fserv
Answer: B
Explanation:
QUESTION NO: 157
Which of the following is the default Xorg configuration file?
A. /usr/X11R6/etc/xorg.conf
B. /var/X11/xorg.conf
C. /etc/X11/xorg.conf
D. /usr/etc/X11/xorg.conf
Answer: C
Explanation:
QUESTION NO: 158
When you start XWindows, which series of programs and/or scripts would most
closely
describe the start-up process?
A. xdm --> xinit --> xinitrc --> Xclients
B. kde --> xinitrc --> xinit --> Xclients
C. startx --> xinitrc --> Xclients --> kde
D. startx --> xinit --> xinitrc --> Xclients
E. startx-->xinit-->Xclients-->xinitrc
Answer: D
Explanation:
QUESTION NO: 159
Your senior administrator asked you to change the default background of his
machine,
which uses XDM. Which file would you edit to achieve this?
A. /etc/X11/xdm/Xsetup
B. /etc/X11/xdm.conf
C. /etc/X11/xdm/Defaults
D. /etc/X11/defaults.conf
Answer: A
Explanation:
QUESTION NO: 160
When installing XWindows the monitor wasn't recognised but now a data sheet
with its
specification is available. Which xorg.conf section must be edited to specify
the correct
values for several variables?
A. Screen
B. Monitor
C. Border
D. Modeline
E. Device
Answer: B
Explanation:
QUESTION NO: 161
The command echo $! will produce what output?
A. the process id of last background command
B. the exit status of the last command
C. the exit status of the last background command
D. the process id of the current shell
E. the name of the command being executed
Answer: A
Explanation:
QUESTION NO: 162
Given the following output:
Prompt > myapp
[1]+ Stopped myapp
prompt>
Which of the following commands will resume executing the stopped process while
allowing the
user to continue to type commands at the command prompt?
A . bg myapp
A. continue myapp
B. exec myapp
C. fg myapp
D. myapp &
Answer: C
Explanation:
The correct answer is g myapp.
Incorrect answer:
continue myapp
Continue is just used for loops.
QUESTION NO: 163
What command will print a list of usernames (first column) and their
corresponding user id
(uid, third column) from /etc/passwd?
A. cut -d: -fl,3 /etc/passwd
B. chop -c l,3 /etc/passwd
C. tac l-3 /etc/passwd
D. fmt -u /etc/passwd
Answer: A
Explanation:
QUESTION NO: 164 CORRECT TEXT
What command can put suspended jobs into the background?
Answer: bg
QUESTION NO: 165
In order to append the output of ls to a file called bazz, which of the
following command
lines would you use?
A. ls > bazz
B. ls > & bazz
C. ls &> bazz
D. ls >> bazz
Answer: D
Explanation:
QUESTION NO: 166
Which shell built-in command can be used to create a shortcut or pseudonym for
a longer
command?
Assume a modern bourne-like shell, such as bash.
A. shortcut
B. ln
C. sudo
D. link
E. alias
Answer: E
Explanation:
QUESTION NO: 167
Which of the following sed commands will replace all instances of the string
foo with the
string foobar changing the file filel.txt in place?
A. sed 's/foo/foobar/g' file1.txt
B. sed 's/foo/foobar/g' file1.txt > file1.txt
C. sed 's/foo/foobar/g' file1.txt | file1.txt
D. sed -i 's/foo/foobar/g' file1.txt
E. sed -i 's/foo/foobar/g' file1.txt >file1.txt
Answer: D
Explanation:
QUESTION NO: 168
When reading man pages, a lot of extra characters are shown on screen. Which of
the
following commands can help to deal with this problem?
A. col
B. grep
C. more
D. pg
E. row
Answer: C
Explanation:
QUESTION NO: 169
Which of the following commands will send output from the program myapp to both
standard output (stdout) and the file file1.1og?
A. cat <myapp | cat > file1.1og
B. myapp 0>&1 | cat > file1.1og
C. myapp | cat > file1.1og
D. myapp| tee file1.1og
E. tee myapp file1.1og
Answer: D
Explanation:
QUESTION NO: 170
Which of the following commands is run last during boot on a system with quotas
enabled?
A. fsck
B. mount
C. quotacheck
D. quotaon
Answer: D
Explanation:
QUESTION NO: 171
Select the line that best represents what permissions the /etc/passwd file
should have
A. -rw------- 1 root root 531 Apr 3 12:36 /etc/passwd
B. -rw-r--r-- 1 root root 531 Apr 312:36 /etc/passwd
C. -rw-r--r-- 1 1 1 531 Apr 3 12:36 /etc/passwd
D. all answers listed are not correct
E. all answers listed are correct
Answer: B
Explanation:
QUESTION NO: 172
What does the command mount -a do?
A. It mounts the floppy disk for all users
B. It shows all mounted file systems
C. It opens /etc/fstab to edit
D. It mounts all file systems listed in /etc/fstab
Answer: D
Explanation:
QUESTION NO: 173
You are using quota on your system. How can you see disk quota details?
A. repquota
B. quota-l
C. quota
D. quotacheck
E. quota --list
Answer: A
Explanation:
QUESTION NO: 174
What command should be invoked to give the user sally read and write, but not
execute,
access to the file strategy.txt using Extended ACL entries?
A. setfacl -setperm sally:rw strategy.txt
B. setfacl -m user::sally+rw strategy.txt
C. setfacl -m user:sally:rw strategy.txt
D. setfacl -setperm user:sally+rw strategy.txt
Answer: C
Explanation:
QUESTION NO: 175
Identify the proper device for the third partition, on the second hard disk, on
the first IDE
controller on a C
system.
A. /dev/hdb3
B. /dev/hdlb3
C. /dev/hdclb3
D. /dev/hdcld2p3
Answer: A
Explanation:
QUESTION NO: 176
Which of the following commands will print the inode usage on each mounted
filesystem?
A. du -i
B. df -i
C. lsfs -i
D. printfs -i
Answer: B
Explanation:
QUESTION NO: 177 CORRECT TEXT
Which program finds only files that are in your PATH?
Answer: which
QUESTION NO: 178
Which of these commands allows you to use shared libraries that are in
/usr/local/lib?
A. export LD_PRELOAD=/usr/local/lib
B. exportLD_LIBRARY_PATH=/usr/local/lib
C. ldconfig /usr/local/lib
D. ldd /usr/local/lib
Answer: C
Explanation:
QUESTION NO: 179
Which file is used by ld.so to find libraries quickly without actually having
to search the
directories in its library path?
A. /etc/ld.so.cache
B. /etc/ld.so.conf
C. /etc/ld.so
D. /var/ld/cache
E. /var/.cache
Answer: A
Explanation:
QUESTION NO: 180
You want to preview where the package file, apache-xml.i386.rpm, will install
its files before
installing it. What command do you issue?
A. rpm -qp apache-xml.i386.rpm
B. rpm -qv apache-xml.i386.rpm
C. rpm -ql apache-xml.i386.rpm
D. rpm -qpl apache-xml.i386.rpm
Answer: D
Explanation:
QUESTION NO: 181
Which system administration command you can use to update ld.so.cache after the
installation of new shared libraries?
A. ldconfig
B. ldd
C. libpath
D. newlibs
Answer: A
Explanation:
QUESTION NO: 182
How do you get a list of files that have been installed from a dpkg package?
A. dpkg -l pkgname
B. dpkg -C pkgname
C. dpkg -s pkgname
D. dpkg -S pkgname
E. dpkg-L pkgname
Answer: E
Explanation:
QUESTION NO: 183 CORRECT TEXT
To prevent users from being able to fill up the / partition, the _______
directory should be
on a separate partition if possible because it is world writeable.
Answer: /tmp
Answer: tmp
QUESTION NO: 184
User Joseph has successfully extracted and compiled a program from source code.
Installing the binaries produces errors. What is the most likely reason?
A. The source code was compiled for a different CPU
B. The permissions set in the /usr/bin directory are wrong
C. The binaries require root privileges to be installed
D. The wrong prefix was used during configuration of the source code
Answer: C
Explanation:
QUESTION NO: 185
What RPM command would show you detailed information for a package called
openssh3.6.
i386.rpm?
A. rpm --showinformation openssh-3.6.i386.rpm
B. rpm --showdetails --package openssh-3.6.i386.rpm
C. rpm --query --info --package openssh-3.6.i386.rpm
D. rpm --verify openssh-3.6.i386.rpm
Answer: C
Explanation:
QUESTION NO: 186
In GRUB's configuration file you find the line
Root (hd1,4)
What is corresponding device name on a Linux system?
A. /dev/hda4
B. /dev/hda5
C. /dev/hdb4
D. /dev/hdb5
Answer: D
Explanation:
QUESTION NO: 187 CORRECT TEXT
Upon booting one of your Linux boxes, you notice a message scrolling by that
does not
look right, but it goes so fast, you do not have a chance to read it. What
command could
you use to view that message after the boot process completes?
Answer: dmesg
QUESTION NO: 188 CORRECT TEXT
What file contains kernel level logging information such as output from a
network driver
module when it is loaded?
Answer: /var/log/kern.log
Answer: /var/log/messages/kern.log
Answer: messages/kern.log
QUESTION NO: 189
Which configuration file should be modified to disable the ctrl-alt-delete key
combination?
A. /etc/keys
B. /proc/keys
C. /etc/inittab
D. /proc/inittab
E. /etc/reboot
Answer: C
Explanation:
QUESTION NO: 190
You are having some trouble with a disk partition and you need to do
maintenance on this
partition but your users home directories are on it and several are logged in.
Which
command would disconnect the users and allow you to safely execute maintenance
tasks?
A. telinit 1
B. shutdown -r now
C. killall -9 inetd
D. /bin/netstop --maint
E. /etc/rc.d/init.d/network stop
Answer: A
Explanation:
QUESTION NO: 191
In compliance with the FHS, in which of the following places are man pages
typically
found?
A. /usr/share/man
B. /opt/man
C. /usr/doc
D. /var/pkg/man
E. /usr/local/man
Answer: A
Explanation:
QUESTION NO: 192 CORRECT TEXT
In the vi editor, which of the following commands will delete the current line
at the cursor
and the 16 lines following it (17 lines total)?
Answer: 17dd
QUESTION NO: 193
What is the purpose of the bash built-in export command?
A. To allow disks to be mounted remotely.
B. To run a command as a process in a sub-shell.
C. To make the command history available to sub-shells.
D. To setup environment variables for applications.
E. To share NFS partitions for use by other systems on the network.
Answer: D
Explanation:
QUESTION NO: 194 CORRECT TEXT
Which option must be listed in /etc/fstab to activate user quotas
automatically?
Answer: usrquota
QUESTION NO: 195 CORRECT TEXT
The USB device filesystem can be found under /proc/ _______ /usb/. (Please fill
in the blank
with the single word only)
Answer: bus
Topic 5, Volume E
QUESTION NO: 196
The message "Hard Disk Error" is displayed on the screen during Stage 1 of the
GRUB
boot process. What does this indicate?
A. The kernel was unable to execute/bin/init
B. The next Stage cannot be read from the harddisk because GRUB was unable to
determine the size and geometry of the disk
C. One or more of the filesystems on the hard disk has errors and a filesystem
check
should be run
D. The BIOS was unable to read the necessary data from the Master Boot Record
tobegin
the boot process
Answer: B
Explanation:
QUESTION NO: 197 CORRECT TEXT
Which user-level program, when manually executed by the root user, is used to
change the
runlevel of the system? (Provide only the command with no additional options or
parameters)
Answer: init
QUESTION NO: 198
Which of the following commands can be used to instruct the init process to
switch
runlevels?
(Choose TWO correct answers)
A. telinit
B. initctl
C. init
D. reinit
E. runlevel
Answer: A,C
Explanation:
QUESTION NO: 199
The system is having trouble and the engineer wants to bypass the usual
/sbin/init startup
and run /bin/sh. What is the usual way to pass this change to the kernel from
your boot
loader?
A. Start in runlevel 1
B. Pass init=/bin/sh on the kernel parameter line
C. Pass /bin/shon the kernel parameter line
D. Pass start=/bin/sh on the kernel parameter line
Answer: B
Explanation:
QUESTION NO: 200
Which command will show you the contents of a gzip compressed tar archive?
A. gzip archive.tgz | tar xvf B.
tar ztf archive.tgz
C. gzip -darchive.tgz | tar tvf D.
tar cf archive.tgz
Answer: B
Explanation:
QUESTION NO: 201
What can the tee command be used for?
A. Print the contents of a file in reverse order
B. Use the output of one command as arguments to another
C. Add line numbers to the output of a command
D. Pipe the output of one command into the input of another
E. Send a command's output to stdout and a to file at the same time
Answer: E
Explanation:
QUESTION NO: 202
Which key do you press to switch to normal mode in vi?
A. Alt
B. Esc
C. Ctrl
D. Shift
Answer: B
Explanation:
QUESTION NO: 203 CORRECT TEXT
The priority of any process can range from -20 to ________ . (Provide only the
numerical
value)
Answer: 19
Answer: +19
QUESTION NO: 204
Which directory contains additional information about installed packages?
A. /usr/share/documentation
B. /usr/local/share/documentation
C. /usr/local/doc
D. /usr/share/doc
E. /usr/packages/doc
Answer: D
Explanation:
QUESTION NO: 205
Which of the following commands will replace every instance of the word list
with LIST
from the file myfile.txt and print the results on the screen?
A. sed --in-place -e "s/list/LIST/" myfile.txt
B. sed -e "s/list/LIST/" myfile.txt
C. sed --in-place -e "/list/LIST/" myfile.txt
D. sed -e "/list/LIST/" myfile.txt
Answer: B
Explanation:
QUESTION NO: 206 CORRECT TEXT
To change the priority of a running process, you use the _______ command
(Specify
command only with no options.)
Answer: renice
Answer: /usr/bin/renice
QUESTION NO: 207
Which of the following commands will NOT execute the bash script
/usr/local/bin/runme.sh?
A. source /usr/local/bin/runme.sh
B. . /usr/local/bin/runme.sh
C. /bin/bash /usr/local/bin/runme.sh
D. /usr/local/bin/runme.sh
E. run /usr/local/bin/runme.sh
Answer: E
Explanation:
QUESTION NO: 208
What is the default process priority when a process is started using the nice
command?
A. -10
B. 10
C. 20
D. 0
Answer: B
Explanation:
QUESTION NO: 209
Which of the following commands will NOT update the Modify timestamp on the
file
/tmp/myfile.txt?
A. file /tmp/myfile.txt
B. echo "Hello" >/tmp/myfile.txt
C. sed -i"s/1/2/" /tmp/myfile.txt
D. echo -n "Hello" >/tmp/myfile.txt
E. touch /tmp/myfile.txt
Answer: A
Explanation:
QUESTION NO: 210 CORRECT TEXT
In the vi editor, what vi command will copy (but not paste) from the current
line at the
cursor and the following 16 lines (17 lines total)? Enter the correct vi
command without
spaces.
Answer: 17yy
QUESTION NO: 211 CORRECT TEXT
An administrator has sent their current vi process with a PID of 1423 to the
background on
the command line. Assuming no other processes are in the background, what
single
command with no options or parameters will bring the vi process to the
foreground?
Answer: fg
QUESTION NO: 212
Bob accidentally created the subdirectory \bobsdir in his home directory. He
tried to
remove the subdirectory with the command rmdir \bobsfile only to receive the
error, "No
such file or directory." Which command will remove the directory?
A. rmdir 'bob/\bobsdir'
B. rmdir "bob/\bobsdir"
C. rmdir ~bob/ 'bobsdir'
D. rmdir bob/\bobsdir
E. rmdir ~bob/\\bobsdir
Answer: E
Explanation:
QUESTION NO: 213
While editing a file in vi, you realize that you are changing the wrong file.
What vi command
sequence will allow you to quit without saving your changes?
A. :Q!
B. :q!
C. :w!
D. :wq!
Answer: B
Explanation:
QUESTION NO: 214
Which command will allow an administrator to adjust the number of mounts after
which an
existing filesystem will be checked by e2fsck?
A. debugfs
B. dumpe2fs
C. mode2fs
D. tune2fs
E. mke2fs
Answer: D
Explanation:
QUESTION NO: 215 CORRECT TEXT
You want to display all currently mounted file systems. Which command would you
use?
(Please enter only the command without arguments or options)
Answer: mount
Answer: /bin/mount
Answer: df
Answer: /bin/df
QUESTION NO: 216 CORRECT TEXT
The/etc/ ________ file lists currently mounted devices.
Answer: mtab
QUESTION NO: 217
Which of the following is true when hard-linked files are present?
A. The output of stat will report "hard" instead of "regular file"
B. The hard-linked files may not be empty
C. Both files will share the same inode
D. Issuing a longdirectory listing with ls -1 will indicate the link with "->"
E. The file permissions will be prefixed by an "h", eg. hrwxr-x-r-x
Answer: C
Explanation:
QUESTION NO: 218 CORRECT TEXT
________ /dev/sda3 will create a swap area on the device/dev/sda3.
Answer: mkswap
Answer: /sbin/mkswap
QUESTION NO: 219 CORRECT TEXT
What umask value will result in the default access permissions of 600
(rw-------) for files and
(rwx ------) for directories? (Provide only the numerical umask value)
Answer: 077
Answer: 0077
QUESTION NO: 220 CORRECT TEXT
Which command will convert an RPM package file to a cpio archive? (Provide only
the
command with no options or parameters)
Answer: rpm2cpio
QUESTION NO: 221 CORRECT TEXT
What option, when passed to the yum command, will update the entire system?
(Specify
ONLY the option name with no additional parameters)
Answer: update
QUESTION NO: 222 CORRECT TEXT
Which command will disable paging and swapping on a device? (Provide only the
command with no additional options or parameters)
Answer: swapoff
Answer: /sbin/swapoff
QUESTION NO: 223 CORRECT TEXT
The dpkg-____ command will ask configuration questions for a specified package,
just as if
the package were being installed for the first time. Answer:
Answer: reconfigure
QUESTION NO: 224 CORRECT TEXT
An administrator has issued the following command:
grub-install --root-directory=/custom-grub /dev/sda
In which directory will the new menu.lst file be found? (Provide the full
directory path only
without the filename)
Answer: /custom-grub/boot/grub
Answer: /custom-grub/boot/grub/
QUESTION NO: 225 CORRECT TEXT
What command will print the shared libraries for the file /usr/lib/libpng12.so?
(Provide the
full command with library name but without any other options or parameters)
Answer: ldd/usr/lib/libpng12.so
Answer: /usr/bin/ldd/usr/lib/libpng12.so
QUESTION NO: 226
After modifying LILO's configuration file, what command should you run for the
changes to
take effect?
A. kill -HUP 'pidof lilo'
B. lilo-install
C. lilo
D. reboot
Answer: C
Explanation:
QUESTION NO: 227 CORRECT TEXT
Which command is used to enable disk quotas on a particular filesystem?
(Provide only the
command, with no options or parameters)
Answer: quotaon
Answer: /sbin/quotaon
QUESTION NO: 228 CORRECT TEXT
You've downloaded an image file of a boot floppy disk to your hard drive. What
is the best
utility to create a boot floppy from the disk image? (Specify a single command
without
options.)
Answer: dd
Answer: /bin/dd
QUESTION NO: 229 CORRECT TEXT
In which directory must definition files be placed to add additional
repositories to yum?
Answer: /etc/yum.repos.d
Answer: /etc/yum.repos.d/
Answer: yum.repos.d
Answer: yum.repos.d/
QUESTION NO: 230
The file myfile.txt contains the following data:
joe:x:100:100:Joe:/home/joe:/bin/bash
mike:x:101:101:Mike:/home/mike:/bin/sh
kevin:x:102:102:Kevin:/home/kevin:/bin/sh
matt:x:103:103:Matt:/home/matt:/bin/sh
What output will be displayed on the screen when the following command is
executed:
grep -o home myfile.txt
A. No output will be displayed on the screen
B. home
home
home
home
C. /home/joe
/home/mike
/home/Kevin
/home/matt
D. joe
mike
Kevin
matt
Answer: B
Explanation:
QUESTION NO: 231
Which TWO runlevels should never be declared as the default runlevel?
A. 0
B. 3
C. 5
D. 6
Answer: A,D
Explanation:
QUESTION NO: 232
After modifying GRUB's configuration file, what command should you run for the
changes
to take effect?
A. kill HUP `pidof grub`
B. grubinstall
C. grub
D. no action is required
Answer: D
Explanation:
QUESTION NO: 233
You are trying to make a hard link to an ordinary file but ln returns an error.
Which of the
following could cause this?
A. The source file is hidden.
B. The source file is readonly.
C. The source file is a shell script.
D. You do not own the source file.
E. The source and the target are on different filesystems.
Answer: E
Explanation:
QUESTION NO: 234 CORRECT TEXT
What file allow admin to adjust number of mounts after which file system will
be checked
by e2fsck?
Answer: tune2fs
QUESTION NO: 235
Which command will convert all tab characters in a file to spaces and print
that to standard
out?
A. convert
B. expand
C. retab
D. untab
Answer: B
Explanation:
QUESTION NO: 236
Which of the following is a limitation of the cut command?
A. The cut command can only select output by field position.
B. The cut command cannot reorder fields.
C. The cut command only works on ASCII text.
D. The cut commandwill always print one line of output for every line of input.
Answer: B
Explanation:
QUESTION NO: 237
When in Normal mode in vi, which command character can be used to begin a
reverse
search of the text?
A. ?
B. /
C. F
D. r
Answer: A
Explanation:
QUESTION NO: 238
In bash, inserting 2>&1 after a command redirects
A. standard error to standard input.
B. standard input to standard error.
C. standard output to standard error.
D. standard error to standard output.
E. standard output to standard input.
Answer: D
Explanation:
QUESTION NO: 239
When in Normal mode in vi, which command character will insert a blank line
below the
current cursor position and place the insert cursor at the beginning of the new
line?
A. a
B. i
C. n
D. o
Answer: D
Explanation:
QUESTION NO: 240
To ensure that a running process continues to execute after you log out, the
process
should be started with what command?
A. live
B. nohup
C. saferun
D. sh
Answer: B
Explanation:
QUESTION NO: 241
Which signal is sent by the kill command by default?
A. HUP(1)
B. QUIT(3)
C. KILL(9)
D. TERM(15)
Answer: D
Explanation:
QUESTION NO: 242
What is the purpose of the Bash built-in export command?
A. To allow disks to be mounted remotely.
B. To automate the export of variables for subsequently executed commands.
C. To make the command history available to sub-shells.
D. To run a command as a process in a sub-shell.
E. To save variable settings for future shell invocations.
Answer: B
Explanation:
QUESTION NO: 243
Once a shell variable has been created, how can the variable be removed from
the
environment?
A. VAR=
B. set-d VAR
C. set -u VAR
D. unset VAR
Answer: D
Explanation:
QUESTION NO: 244
What command will display all of the background tasks running in the current
shell?
A. history
B. jobs
C. kill -l
D. list
Answer: B
Explanation:
QUESTION NO: 245
Given the following output: prompt> myapp [1]+ Stopped myapp prompt> Which of
the
following commands will resume executing the stopped process and make it the
current
job?
A. bg myapp
B. continue myapp
C. exec myapp
D. fg myapp
E. myapp &
Answer: D
Explanation:
QUESTION NO: 246
Which of the following commands will print the first few lines of a text file
to the shell?
A. cat -n 10 filename
B. dump -n 10 filename
C. head -n 10 filename
D. print -n 10 filename
Answer: C
Explanation:
QUESTION NO: 247
When should grep -F or the fgrep command be used to search the content of text
files?
A. When files need to be searched that contain non-ASCII text.
B. When only the presence of the search pattern needs to be reported and not
every line
that matches the
search.
C. When the text being searched for does not contain any regular expression
patterns.
D. When the text files will be searched multiple times. Subsequent calls to
fgrep will run
faster.
Answer: C
Explanation:
QUESTION NO: 248 CORRECT TEXT
Which command displays the contents of the Kernel Ring Buffer on the command
line?
(Provide only the command name without any options or path information) Answer:
Answer: dmesg
Answer: /bin/dmesg
QUESTION NO: 249
You are having some trouble with a disk partition and you need to do
maintenance on this
partition but your users home directories are on it and several are logged in.
Which
command would disconnect the users and allow you to safely execute maintenance
tasks?
A. halt 1
B. init 1
C. logout -all now
D. runlevel 1
E. shutdown -maintenance now
Answer: B
Explanation:
QUESTION NO: 250
Which of the following commands will write a message to the terminals of all
logged in
users?
A. bcast
B. mesg
C. print
D. wall
E. yell
Answer: D
Explanation:
QUESTION NO: 251
Which of the following statements is a TRUE difference between GRUB Legacy and
GRUB
2?
A. GRUB 2 no longer requires a configuration file.
B. Partition numbers start at 0 in GRUB Legacy and 1 in GRUB 2.
C. grub-mkconfig only works with GRUB Legacy if the -version 1 option is used.
D. The configuration file menu.lst (andgrub.conf) have been replaced with
grub.config.
Answer: B
Explanation:
QUESTION NO: 252
Which of the following commands can be used to perform a full text search on
all available
packages on a Debian system?
A. apt
B. apt-cache
C. apt-get
D. apt-search
E. dpkg
Answer: B
Explanation:
QUESTION NO: 253 CORRECT TEXT
Typically, which top level system directory is used for files and data that
changes regularly
while the system is running and are to be kept between reboots? (Specify only
the the top
level directory) Answer:
Answer: /var
Answer: /var/
Answer: var
Answer: var/
QUESTION NO: 254
What effect does the sticky bit have when set on a directory?
A. There is no effect because the sticky bit has been deprecated in Linux.
B. It provides a hint to the kernel that files in this directory should be
cached in memory, if
possible.
C. It restricts deletion of files in this directory to only the root user and
the file owner regardless of write permissions for other users.
D. It instructs the kernel to keep the underlying data for the files in the
directory intact to
allow for undeletion
of important files.
Answer: C
Explanation:
QUESTION NO: 255
Identify the proper device for the third partition on the only SCSI drive on
the system.
A. /dev/hda3
B. /dev/sd0a3
C. /dev/sda3
D. /dev/sd1p3
Answer: C
Explanation:
QUESTION NO: 256 CORRECT TEXT
Which program updates the database that is used by the locate command?
Answer: updatedb
Answer: /usr/bin/updatedb
QUESTION NO: 257
Which of the following apt-get commands will install the newest versions of all
currently
installed packages without removing any packages or installing new packages
that are not
already installed?
A. auto-update
B. upgrade
C. dist-upgrade
D. install
E. update
Answer: B
Explanation:
QUESTION NO: 258 CORRECT TEXT
What is the name of the main configuration file for GRUB? (Please specify the
file name
with no path information) Answer:
Answer: menu.lst
Answer: grub.conf
Answer: grub.cfg
QUESTION NO: 259
Which of the following commands can be used to enable a file for paging and
swapping?
A. mkswap
B. swapon
C. inswap
D. modswap
Answer: B
Explanation:
QUESTION NO: 260
Which of the following commands can be used to create a new file that is 100kB
in size?
A. dd
B. file
C. mkfile
D. touch
Answer: A
Explanation:
QUESTION NO: 261
When piping the output of find to the xargs command, what option to find is
useful if the
filenames have spaces in them?
A. -rep-space
B. -print0
C. -nospace
D. -ignore-space
Answer: B
Explanation:
QUESTION NO: 262
What is the purpose of the xargs command?
A. It will read standard input and executecommand lines with the read input.
B. It will get user input from the graphical environment.
C. It will clean up command line arguments and verify syntactic correctness.
D. It will pass arguments on the command line to a new graphical application.
E. It will allow users to specify long options for commands that normally only
accept short
options.
Answer: A
Explanation:
QUESTION NO: 263
What is the default action of the split command on an input file?
A. It will break the file into new files of 1,024 byte pieces each.
B. It will break the file into new files of 1,000 line pieces each.
C. It will break the file into new files of 1,024 kilobyte pieces each.
D. It will break the file into new files that are no more than 5% of the size
of the original file.
Answer: B
Explanation:
QUESTION NO: 264
In the vi editor, which of the following commands will copy the current line
into the vi
buffer?
A. c
B. cc
C. 1c
D. yy
E. 1y
Answer: D
Explanation:
QUESTION NO: 265
You are writing text in vi. Now you want to save your changes and exit. Which
TWO
sequence of inputs will accomplish this?
A. esc ZZ
B. ctrl :w!
C. esc zz
D. esc :wq!
E. ctrl XX
Answer: A,D
Explanation:
QUESTION NO: 266
In the command foo < bar | foobar, which ONE of the following statements is
correct?
A. the stdout from the command foobar issaved to the file foo.
B. the stdout from the command foo is saved to the file foobar.
C. the command foobar receives its stdin from the stderr of foo.
D. the command foobar receives its stdin from the stdout of foo.
E. the command bar receives its stdinfrom the contents of the file foobar.
Answer: D
Explanation:
QUESTION NO: 267
What does the + symbol mean in the following grep regular expression: grep '^d
[aei]\+d$'
/usr/share/dict/words
A. Match the preceding character set ([aei]) one or more times.
B. Match thepreceding character set ([aei]) zero or more times.
C. Match the preceding character set ([aei]) zero or one times.
D. Match a literal + symbol.
Answer: D
Explanation:
The answer should be “Match a literal + symbol” because there is a backslash
symbol
before the plus, so it should match a literal +.
QUESTION NO: 268
Which option to the tee command will cause the output to be concatenated on the
end of
the output file instead of overwriting the existing file contents?
A. -a
B. -c
C. -no-clobber
D. -continue
Answer: A
Explanation:
QUESTION NO: 269
Which of the following shell redirections will write standard output and
standard error
output to a file named filename?
A. 2>&1 >filename
B. >filename 2>&1
C. 1>&2>filename
D. >>filename
E. 1&2>filename
Answer: B
Explanation:
QUESTION NO: 270
Which of the following commands will produce the following output: USERPID %CPU
%MEMVSZ RSS TTY STAT STARTTIME COMMAND root 1255 4.4 0.9 6071634824 tty7
Ss+ 09:25 19:04 /usr/bin/X :0 - root 2016 0.0 0.0 792 560 tty1 Ss+ 09:26 0:00
/sbin/getty 8
matt 5204 0.0 0.1 6320 3696 pts/4 Ss 13:12 0:00 bash matt 5219 0.0 0.0 3988 624
pts/4
S+ 13:12 0:00 man bash matt 5229 0.0 0.0 3584 932 pts/4 S+ 13:12 0:00 pager -s
matt
6768 0.0 0.1 10504 3880 pts/2 S+ 15:11 0:00 vi README.txt
A. jobs
B. proclist
C. netstat
D. ps
Answer: D
Explanation:
QUESTION NO: 271
While editing a file in vi, the file changes due to another process. Without
exiting vi, how
can the file be reopened for editing with the new content?
A. :r
B. :n
C. :w
D. :e
Answer: D
Explanation:
QUESTION NO: 272
Which of the following explanations are valid reasons to run a command in the
background
of your shell?
A. The command does not need to execute immediately.
B. The command has to run immediately but the user needs to log out.
C. The system is being shut down and the command needs to restart execution
immediately after the reboot.
D. The command can run at a lower priority than normal commands run on the
command
line.
Answer: B
Explanation:
QUESTION NO: 273
What is the purpose of the & character at the end of a command line?
A. It causes standard error to be unbuffered.
B. It causes the command to be run in the background of the current shell.
C. It puts the command under the job control facilities of the current shell.
D. It causes the command to be run as a child of the initial login shell of the
user.
Answer: B
Explanation:
QUESTION NO: 274
Which of the following commands will print important system information such as
the
kernel version and machine hardware name?
A. sysinfo
B. uname
C. lspci
D. arch
E. info
Answer: B
Explanation:
QUESTION NO: 275
During a system boot cycle, what is the program that is run after the BIOS
completes its
tasks?
A. The bootloader
B. The inetd program
C. The init program
D. The kernel
Answer: A
Explanation:
QUESTION NO: 276 CORRECT TEXT
Which command will display messages from the kernel that were output during the
normal
bootup sequence? Answer:
Answer: dmesg
Answer: /bin/dmesg
QUESTION NO: 277
Which of the following commands will load a kernel module along with any
required
dependency modules?
A. depmod
B. insmod
C. modprobe
D. module_install
E. loadmod
Answer: C
Explanation:
QUESTION NO: 278
What is the process ID number of the init program?
A. -1
B. 0
C. 1
D. It is different with each reboot.
E. It is set to the current run level.
Answer: C
Explanation:
QUESTION NO: 279
After running the command umount /mnt, the following error message is
displayed:
umount: /mnt: device is busy. What is a common reason for this message?
A. The kernel has not finished flushing disk writes to themounted device.
B. A user has a file open in the /mnt directory.
C. The previous rm command has not finished.
D. The files in /mnt have been scanned and added to the locate database.
E. The kernel thinks that a process is about to open a file in /mnt for
reading.
Answer: B
Explanation:
QUESTION NO: 280
Which of the following commands will print the amount of disk space used by
files
specified on the command line?
A. dc
B. dd
C. df
D. du
Answer: D
Explanation:
QUESTION NO: 281
Which of the following commands can be used to locate programs and their
corresponding
man pages and configuration files?
A. locate
B. which
C. find
D. query
E. whereis
Answer: E
Explanation:
QUESTION NO: 282
Which chown command will change the ownership to dave and the group to staff on
a file
named data.txt?
A. chown dave/staff data.txt
B. chown -u dave -g staff data.txt
C. chown -user dave -group staff data.txt
D. chown dave:staff data.txt
Answer: D
Explanation:
QUESTION NO: 283
Which of the following commands enables the setuid (suid) permission on the
executable
called /bin/foo?
A. chmod 1755 /bin/foo
B. chmod 4755 /bin/foo
C. chown u-s /bin/foo
D. chmod 755+s /bin/foo
Answer: B
Explanation:
QUESTION NO: 284
Instead of supplying an explicit device in /etc/fstab for mounting, what other
options may
be used to identify the intended partition? (Select TWO correct answers)
A. FIND
B. ID
C. LABEL
D. NAME
E. UUID
Answer: C,E
Explanation:
QUESTION NO: 285 CORRECT TEXT
The system configuration file named _______ is commonly used to set the default
runlevel.
(Please provide the fill name with full path information) Answer:
Answer: /etc/inittab
QUESTION NO: 286 CORRECT TEXT
The system configuration file named _______ is commonly used to set the default
runlevel.
(Please provide the fill name with full path information) Answer:
Answer: /etc/inittab
