Best Quality 101-500 Bundle 2021

NEW QUESTION 1

What command changes the nice level of a running process? (Specify ONLY the command without any path or parameters)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
renice

NEW QUESTION 2

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

Answer: B

NEW QUESTION 3

Which signal is sent by the kill command by default?

• A. SIGHUP(1)
• B. SIGQUIT(3)
• C. SIGKILL(9)
• D. SIGTERM(15)

Answer: D

NEW QUESTION 4

Which RPM command will output the name of the package which supplied 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 -qi/etc/exports

Answer: B

NEW QUESTION 5

The system configuration file named _____ is commonly used to set the default runlevel. (Please provide the file name with full path information)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/inittab

NEW QUESTION 6

Which of the following commands updates the linker cache of shared libraries?

• A. mkcache
• B. soconfig
• C. mkldconfig
• D. lddconfig
• E. ldconfig

Answer: E

NEW QUESTION 7

Which command will uninstall a package but leave its configuration files in case the package is re-installed?

• A. dpkg –s pkgname
• B. dpkg –L pkgname
• C. dpkg –P pkgname
• D. dpkg –r pkgname

Answer: D

NEW QUESTION 8

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 the preceding character set ([aei]) zero or more times.
• C. Match the preceding character set ([aei]) zero or one times.
• D. Match a literal + symbol.

Answer: A

NEW QUESTION 9

Which SysV init configuration file is commonly used to set the default run level? (Specify the full name of the file, including path.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
inittab

NEW QUESTION 10

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

NEW QUESTION 11

What is the purpose of the Filesystem Hierarchy Standard?

• A. It is a security model used to ensurefiles are organized according to their permissions and accessibility.
• B. It provides unified tools to create, maintain and manage multiple filesystems in a common way.
• C. It defines a common internal structure of inodes for all compliant filesystems.
• D. Itis a distribution neutral description of locations of files and directories.

Answer: D

NEW QUESTION 12

Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
swapoff, /sbin/swapoff

NEW QUESTION 13

Which option to the yum command will update the entire system? (Specify ONLY the option name without any additional parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
update, upgrade

NEW QUESTION 14

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

Answer: D

NEW QUESTION 15

Which file from the /proc file system contains a list of all currently mounted devices? (Specify ONLY the command without any path or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
mounts

NEW QUESTION 16

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

Answer: B

NEW QUESTION 17

Which of the following is a limitation of the cut command?

• A. Thecutcommand can only select output by field position.
• B. Thecutcommand cannot reorder fields.
• C. Thecutcommand only works on ASCIItext.
• D. Thecutcommand cannot use different input and output delimiters.

Answer: B

NEW QUESTION 18

What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)

• A. To create RAID 9 arrays.
• B. To dynamically change the size of logical volumes.
• C. To encrypt logical volumes.
• D. To create snapshots.
• E. To dynamically create or delete logical volumes.

Answer: BDE

NEW QUESTION 19

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

NEW QUESTION 20

An administrator has issued the following command: grub-install --root-directory=/custom-grub /dev/sda
In which directory will new configuration files be found? (Provide the full directory path only without the filename)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/custom-grub/boot/grub/, /custom-grub/boot/grub

NEW QUESTION 21

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

Answer: D

NEW QUESTION 22

Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)

• A. startd
• B. systemd
• C. Upstart
• D. SysInit
• E. SysV init

Answer: BCE

NEW QUESTION 23

Which of the following settings for umask ensures that new files have the default permissions -rw-r----- ?

• A. 0017
• B. 0640
• C. 0038
• D. 0027

Answer: D

NEW QUESTION 24

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

NEW QUESTION 25

Which signal is missing from the following command that is commonly used to instruct a daemon to reinitialize itself, including reading configuration files?

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
killall -s ______ daemon
HUP, SIGHUP, 1

NEW QUESTION 26

How many fields are in a syntactically correct line of /etc/fstab?

• A. 3
• B. 4
• C. 5
• D. 6
• E. 7

Answer: D

NEW QUESTION 27

Which of the following commands enables the setuid (suid) permission on the executable /bin/foo?

• A. chmod 1755 /bin/foo
• B. chmod 4755 /bin/foo
• C. chmod u-s /bin/foo
• D. chmod 755+s /bin/foo

Answer: B

NEW QUESTION 28
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