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QUESTION 1

FILL BLANK

 

Which command displays the current disk space usage for all mounted file systems? (Specify ONLY the command without any path or parameters.)

 

Correct Answer: du

 

 

QUESTION 2

Which chown command changes 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

E. chown dave:staff data.txt

 

Correct Answer: E

 

QUESTION 3

A Debian package creates several files during its installation. Which of the following commands searches for packages owning the file /etc/debian_version?

 

A. apt-get search /etc/debian_version

B. apt –r /etc/debian_version

C. find /etc/debian_version -dpkg

D. dpkg –S /etc/debian_version

E. apt-file /etc/debian_version

 

Correct Answer: D

 

 

QUESTION 4

What is contained on the EFI System Partition?

 

A. The Linux root file system

B. The first stage boot loader

C. The default swap space file

D. The Linux default shell binaries

E. The user home directories

 

Correct Answer: B

 

 

QUESTION 5

Which of the following directories on a 64 bit Linux system typically contain shared libraries? (Choose two.)

 

A. ~/.lib64/

B. /usr/lib64/

C. /var/lib64/

D. /lib64/

E. /opt/lib64/

 

Correct Answer: BD

 

QUESTION 6

Which of the following commands list all files and directories within the /tmp/ directory and its subdirectories which are owned by the user root? (Choose two.)

 

A. find /tmp –user root -print

B. find –path /tmp –uid root

C. find /tmp –uid root -print

D. find /tmp –user root

E. find –path /tmp –user root -print

 

Correct Answer: AD

 

 

QUESTION 7

Which of the following are valid stream redirection operators within Bash? (Choose two.)

 

A. <

B. #>

C. %> D. >>>

E. 2>&1

 

Correct Answer: AE

 

QUESTION 8

Which of the following vi commands deletes two lines, the current and the following line?

 

A. d2

B. 2d

C. 2dd

D. dd2

E. de12

 

Correct Answer: C

 

 

QUESTION 9

The command dbmaint & was used to run dbmaint in the background. However, dbmaint is terminated after logging out of the system. Which alternative dbmaint invocation lets dbmaint continue to run even when the user running the program logs out?

 

A. job –b dmaint

B. dbmaint &>/dev/pts/null

C. nohup dbmaint &

D. bg dbmaint

E. wait dbmaint

 

Correct Answer: C

 

 

QUESTION 10

In order to display all currently mounted filesystems, which of the following commands could be used? (Choose two.)

 

A. cat /proc/self/mounts

B. free

C. lsmounts

D. mount

E. cat /proc/filesystems

 

Correct Answer: AD

 

 

QUESTION 11

Which type of file system is created by mkfs when it is executed with the block device name only and without any additional parameters?

 

A. XFS

B. VFAT

C. ext2

D. ext3

E. ext4

 

Correct Answer: C

 

 

QUESTION 12

Which umask value ensures that new directories can be read, written and listed by their owning user, read and listed by their owning group and are not accessible at all for everyone else?

 

A. 0750 B. 0027 C. 0036 D. 7640

E. 0029

 

Correct Answer: B

 

 

QUESTION 13

When considering the use of hard links, what are valid reasons not to use hard links?

 

A. Hard links are not available on all Linux systems because traditional filesystems, such as ext4, do not support them

B. Each hard link has individual ownership, permissions and ACLs which can lead to unintended disclosure of file content

C. Hard links are specific to one filesystem and cannot point to files on another filesystem

D. If users other than root should be able to create hard links, suln has to be installed and configured E. When a hard linked file is changed, a copy of the file is created and consumes additional space

 

Correct Answer: C

 

QUESTION 14

In compliance with the FHS, in which of the directories are man pages found?

 

A. /opt/man/

B. /usr/doc/

C. /usr/share/man/

D. /var/pkg/man

E. /var/man/

 

Correct Answer: C

 

 

QUESTION 15

FILL BLANK

 

Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

 

Correct Answer: cmdline

 

 

QUESTION 16

What is the process ID number of the init process on a System V init based system?

 

A. -1

B. 0

C. 1

D. It is different with each reboot

E. It is set to the current run level

 

Correct Answer: C

 

 

QUESTION 17

Which daemon handles power management events on a Linux system?

 

A. acpid

B. batteryd

C. pwrmgntd

D. psd

E. inetd

Correct Answer: A

 

 

QUESTION 18

Which of the following statements are true about the boot sequence of a PC using a BIOS? (Choose two.)

 

A. Some parts of the boot process can be configured from the BIOS

B. Linux does not require the assistance of the BIOS to boot a computer

C. The BIOS boot process starts only if secondary storage, such as the hard disk, is functional

D. The BIOS initiates the boot process after turning the computer on

E. The BIOS is started by loading hardware drivers from secondary storage, such as the hard disk

 

Correct Answer: AD

 

 

QUESTION 19

What is true regarding UEFI firmware? (Choose two.)

 

A. It can read and interpret partition tables B. It can use and read certain file systems

C. It stores its entire configuration on the /boot/ partition

D. It is stored in a special area within the GPT metadata

E. It is loaded from a fixed boot disk position

 

Correct Answer: A B

 

 

QUESTION 20

A faulty kernel module is causing issues with a network interface card. Which of the following actions ensures that this module is not loaded automatically when the system boots?

 

A. Using lsmod –remove –autoclean without specifying the name of a specific module

B. Using modinfo –k followed by the name of the offending module

C. Using modprobe –r followed by the name of the offending module

D. Adding a blacklist line including the name of the offending module to the file /etc/modprobe.d/ blacklist.conf

E. Deleting the kernel module’s directory from the file system and recompiling the kernel, including its modules

 

Correct Answer: D

 

QUESTION 21

When is the content of the kernel ring buffer reset? (Choose two.)

 

A. When the ring buffer is explicitly reset using the command dmesg –clear

B. When the ring buffer is read using dmesg without any additional parameters

C. When a configurable amount of time, 15 minutes by default, has passed

D. When the kernel loads a previously unloaded kernel module

E. When the system is shut down or rebooted

 

Correct Answer: AE

 

 

QUESTION 22

What is the first program the Linux kernel starts at boot time when using System V init?

 

A. /lib/init.so

B. /proc/sys/kernel/init

C. /etc/rc.d/rcinit

D. /sbin/init

E. /boot/init

 

Correct Answer: D

 

 

QUESTION 23

Which of the following commands changes the number of days before the ext3 filesystem on /dev/sda1 has to run through a full filesystem check while booting?

 

A. tune2fs –d 200 /dev/sda1

B. tune2fs –i 200 /dev/sda1

C. tune2fs –c 200 /dev/sda1

D. tune2fs –n 200 /dev/sda1

E. tune2fs –days 200 /dev/sda1

 

Correct Answer: B

 

 

QUESTION 24

Which is the default percentage of reserved space for the root user on new ext4 filesystems?

A. 10%

B. 3%

C. 15%

D. 0%

E. 5%

 

Correct Answer: E

 

 

QUESTION 25

Which of the following is true when a file system, which is neither listed in /etc/fstab nor known to system, is mounted manually?

 

A. systemd ignores any manual mounts which are not done using the systemctl mount command

B. The command systemctl mountsync can be used to create a mount unit based on the existing mount

C. systemd automatically generates a mount unit and monitors the mount point without changing it

D. Unless a systemd mount unit is created, systemd unmounts the file system after a short period of time

E. systemctl unmount must be used to remove the mount because system opens a file descriptor on the mount point

 

Correct Answer: C

 

 

 

 

QUESTION 26

Which of the following files exist in a standard GRUB 2 installation? (Choose two.)

 

A. /boot/grub/stages/stage0

B. /boot/grub/i386-pc/lvm.mod

C. /boot/grub/fstab

D. /boot/grub/grub.cfg

E. /boot/grub/linux/vmlinuz

 

Correct Answer: BD

 

 

QUESTION 27

Which of the following commands installs all packages with a name ending with the string foo?

 

A. zypper get “*foo”

B. zypper update “foo?”

C. zypper force “foo*”

D. zypper install “*foo”

E. zypper add “.*foo”

 

Correct Answer: D

 

 

QUESTION 28

Which of the following properties of a Linux system should be changed when a virtual machine is cloned? (Choose two.)

 

A. The partitioning scheme

B. The file system

C. The D-Bus Machine ID

D. The permissions of /root/

E. The SSH host keys

 

Correct Answer: CE

 

 

QUESTION 29

Which of the following commands installs GRUB 2 into the master boot record on the third hard disk?

 

A. grub2 install /dev/sdc

B. grub-mkrescue /dev/sdc

C. grub-mbrinstall /dev/sdc

D. grub-setup /dev/sdc

E. grub-install /dev/sdc

 

Correct Answer: A

 

 

QUESTION 30

Which of the following partition types is used for Linux swap spaces when partitioning hard disk drives?

 

A. 7

B. 82 C. 83

D. 8e

E. fd

 

Correct Answer: B

 

QUESTION 31

What is true regarding the configuration of yum? (Choose two.)

 

A. Changes to the repository configuration become active after running yum confupdate

B. Changes to the yum configuration become active after restarting the yumd service

C. The configuration of package repositories can be divided into multiple files

D. Repository configurations can include variables such as $basearch or $releasever E. In case /etc/yum.repos.d/ contains files, /etc/yum.conf is ignored

 

Correct Answer: CD

 

 

QUESTION 32

Which of the following apt-get subcommands installs the newest versions of all currently installed packages?

 

A. auto-update

B. dist-upgrade

C. full-upgrade

D. install

E. update

 

Correct Answer: B

 

 

QUESTION 33

Which command uninstalls a package but keeps its configuration files in case the package is re-installed?

 

A. dpkg –s pkgname

B. dpkg –L pkgname

C. dpkg –P pkgname

D. dpkg –v pkgname

E. dpkg –r pkgname

 

Correct Answer: E

 

 

QUESTION 34

Which of the following commands lists the dependencies of the RPM package file foo.rpm?

 

A. rpm –qpR foo.rpm

B. rpm –dep foo

C. rpm –ld foo.rpm

D. rpm –R foo.rpm

E. rpm –pD foo

 

Correct Answer: A

 

 

QUESTION 35

What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?

 

A. 9

B. 15 C. 19

D. 49

E. 99

 

Correct Answer: C

 

 

QUESTION 36

FILL BLANK

 

Which program updates the database that is used by the locate command? (Specify ONLY the command without any path or parameters).

 

Correct Answer: updatedb

 

 

QUESTION 37

What does the command mount –bind do?

 

A. It makes the contents of one directory available in another directory

B. It mounts all available filesystems to the current directory

C. It mounts all user mountable filesystems to the user’s home directory

D. It mounts all file systems listed in /etc/fstab which have the option userbind set E. It permanently mounts a regular file to a directory

 

Correct Answer: A

 

 

QUESTION 38

Consider the following output from the command ls –i:

 

 

How would a new file named c.txt be created with the same inode number as a.txt (Inode 525385)?

 

A. ln –h a.txt c.txt

B. ln c.txt a.txt

C. ln a.txt c.txt

D. ln –f c.txt a.txt

E. ln –i 525385 c.txt

 

Correct Answer: C

 

 

QUESTION 39

Consider the following directory:

 

drwxrwxr-x 2 root sales 4096 Jan 1 15:21 sales

 

Which command ensures new files created within the directory sales are owned by the group sales? (Choose two.)

 

A. chmod g+s sales

B. setpol –R newgroup=sales sales

C. chgrp –p sales sales

D. chown –persistent *.sales sales

E. chmod 2775 sales

 

Correct Answer: AE

 

 

 

 

QUESTION 40

From a Bash shell, which of the following commands directly execute the instructions from the file /usr/ local/bin/runme.sh without starting a subshell? (Choose two.)

 

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

 

Correct Answer: AD

 

QUESTION 41

FILL BLANK

 

Which program runs a command in specific intervals and refreshes the display of the program’s output? (Specify ONLY the command without any path or parameters.)

 

Correct Answer: watch

 

 

QUESTION 42

Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?

 

A. i (lowercase)

B. p (lowercase)

C. P (uppercase)

D. U (uppercase)

E. u (lowercase)

 

Correct Answer: B

 

 

QUESTION 43

Which of the following commands changes all CR-LF line breaks in the text file userlist.txt to Linux standard LF line breaks and stores the result in newlist.txt?

 

A. tr –d ‘r’ < userlist.txt > newlist.txt

B. tr –c ‘nr’ ‘’ <newlist.txt> userlist.txt

C. tr ‘rn’ ‘’ <userlist.txt> newlist.txt

D. tr ‘r’ ‘n’ userlist.txt newlist.txt

E. tr –s ‘/^M/^J/’ userlist.txt newlist.txt

 

Correct Answer: A

 

 

QUESTION 44

Given the following input stream:

txt1.txt atxt.txt txtB.txt

Which of the following regular expressions turns this input stream into the following output stream? txt1.bak.txt atxt.bak.txt txtB.bak.txt

A. s/^.txt/.bak/

B. s/txt/bak.txt/

C. s/txt$/bak.txt/

D. s/^txt$/.bak^/

E. s/[.txt]/.bak$1/

 

Correct Answer: C

 

 

QUESTION 45

Which command must be entered before exiting vi to save the current file as filea.txt?

 

A. %s filea.txt

B. %w filea.txt

C. :save filea.txt

D. :w filea.txt

E. :s filea.txt

 

Correct Answer: D

 

 

QUESTION 46

Which of the following signals is sent to a process when the key combination Ctrl+C is pressed on the keyboard?

 

A. SIGTERM

B. SIGCONT

C. SIGSTOP

D. SIGKILL

E. SIGINT

 

Correct Answer: E

 

 

QUESTION 47

Which of the following commands displays the output of the foo command on the screen and also writes it to a file called /tmp/foodata?

 

A. foo | less /tmp/foodata

B. foo | cp /tmp/foodata

C. foo > /tmp/foodata

D. foo | tee /tmp/foodata

E. foo > stdout >> /tmp/foodata

 

Correct Answer: D

 

 

QUESTION 48

What output will be displayed when the user fred executes the following command?

echo ‘fred $USER’

 

A. fred fred

B. fred /home/fred/

C. ‘fred $USER’

D. fred $USER

E. ‘fred fred’

 

Correct Answer: D

 

 

QUESTION 49

Which of the following commands displays the path to the executable file that would be executed when the command foo is invoked?

 

A. lsattr foo

B. apropos foo

C. locate foo

D. whatis foo

E. which foo

 

Correct Answer: E

 

 

QUESTION 50

When redirecting the output of find to the xargs command, what option to find is useful if the filenames contain spaces?

 

A. –rep-space

B. -printnul

C. -nospace

D. –ignore-space

E. –print0

 

Correct Answer: E

 

 

QUESTION 51

Which of the following commands can be used to determine how long the system has been running? (Choose two.)

 

A. uptime

B. up

C. time –up

D. uname –u

E. top

 

Correct Answer: AE

 

 

QUESTION 52

What is true regarding the command

ls > files if files does not exist?

 

A. The output of ls is printed to the terminal B. files is created and contains the output of ls

C. An error message is shown and ls is not executed

D. The command files is executed and receives the output of ls

E. Any output of ls is discarded

 

Correct Answer: B

 

 

QUESTION 53

Which of the following files, located in a user’s home directory, contains the Bash history?

 

A. .bashrc_history

B. .bash_histfile

C. .history

D. .bash_history

E. .history_bash

 

Correct Answer: D

 

QUESTION 54

Which wildcards will match the following filenames? (Choose two.)

ttyS0 ttyS1 ttyS2

 

A. ttyS[1-5]

B. tty?[0-5]

C. tty*2

D. tty[A-Z][012]

E. tty[Ss][02]

 

Correct Answer: BD

 

 

QUESTION 55

Which of the following commands redirects the output of ls to standard error?

 

A. ls >-1

B. ls <<ERR

C. ls >&2

D. ls >>2

E. ls |error

 

Correct Answer: C

 

 

QUESTION 56

Which of the following commands displays the contents of a gzip compressed tar archive?

 

A. gzip archive.tgz | tar xvf –

B. tar –fzt archive.tgz

C. gzip –d archive.tgz | tar tvf –

D. tar cf archive.tgz

E. tar ztf archive.tgz

 

Correct Answer: E

 

 

QUESTION 57

Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file?

 

A. fmt –f 1,4 /etc/passwd

B. cut –d : -f 1,4 /etc/passwd

C. sort –t : -k 1,4 /etc/passwd

D. paste –f 1,4 /etc/passwd

E. split –c 1,4 /etc/passwd

 

Correct Answer: B

 

 

QUESTION 58

Which of the following regular expressions represents a single upper-case letter?

 

A. :UPPER:

B. [A-Z]

C. !a-z

D. %C

E. {AZ}

 

Correct Answer: B

 

 

QUESTION 59

FILL BLANK

 

Which command is used to start another command with a given nice level? (Specify ONLY the command without any path or parameters.)

 

Correct Answer: nice

 

 

QUESTION 60

Given a log file loga.log with timestamps of the format DD/MM/YYYY:hh:mm:ss, which command filters out all log entries in the time period between 8:00 am and 8:59 am?

 

A. grep –E ‘:08:[09]+:[09]+’ loga.log

B. grep –E ‘:08:[00]+’ loga.log

C. grep –E loga.log ‘:08:[0-9]+:[0-9]+’

D. grep loga.log ‘:08:[0-9]:[0-9]’

E. grep –E ‘:08:[0-9]+:[0-9]+’ loga.log

 

Correct Answer: E

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