LPI 101-500 Forum 2021

NEW QUESTION 1

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

Answer: DE

NEW QUESTION 2

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

NEW QUESTION 3

Which Debian package management tool asks the configuration questions for a specific already installed package just as if the package were being installed for the first time? (Specify ONLY the command without any path or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
dpkg-reconfigure

NEW QUESTION 4

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

NEW QUESTION 5

Which of the following commands updates the already installed RPM package rpmname?

• A. rpm --update rpmname
• B. rpm –U rpmname
• C. rpm –q rpmname
• D. rpm --force rpmname
• E. rpm –u rpmname

Answer: B

NEW QUESTION 6

Which of the following is correct when talking about mount points?

• A. Every existing directory can be used as a mount point.
• B. Only empty directories can be used as a mount point.
• C. Directories need to have the SetUID flag set to be used as a mount point.
• D. Files within a directory are deleted when the directory is used as a mount point.

Answer: A

NEW QUESTION 7

Which of the following commands is used to change metadata and options for ext3 filesystems?

• A. mod3fs
• B. tune3fs
• C. mod2fs
• D. tune2fs
• E. dump2fs

Answer: D

NEW QUESTION 8

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.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
watch

NEW QUESTION 9

Which of the following commands is used to update the list of available packages when using dpkg based package management?

• A. apt-get update
• B. apt-get upgrade
• C. apt-cache update
• D. apt-get refresh
• E. apt-cache upgrade

Answer: A

NEW QUESTION 10

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 11

What is the name of the main configuration file for GNU GRUB? (Specify the file name only without any path.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
menu.lst, grub.conf, grub.cfg

NEW QUESTION 12

Which command is used to query information about the available packages on a Debian system?

• A. apt-cache
• B. apt-get
• C. apt-search
• D. dpkg
• E. dpkg-search

Answer: A

NEW QUESTION 13

When given the following command line. echo "foo bar" | tee bar | cat
Which of the following output is created?

• A. cat
• B. foo bar
• C. tee bar
• D. bar
• E. foo

Answer: B

NEW QUESTION 14

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

• 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

NEW QUESTION 15

Which command creates a swap space on a block device or a file? (Specify ONLY the command without any path or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
mkswap

NEW QUESTION 16

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”

Answer: D

NEW QUESTION 17

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

• A. /boot/grub/stages/stage0
• B. /boot/grub/i386-pc/1vm.mod
• C. /boot/grub/fstab
• D. /boot/grub/grub.cfg
• E. /boot/grub/linux/vmlinuz

Answer: BD

NEW QUESTION 18

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

• A. uptime
• B. up
• C. top
• D. uname -u
• E. time –up

Answer: AC

NEW QUESTION 19

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

Answer: C

NEW QUESTION 20

From a Bash shell, which of the following commands directly executes the instruction from the file
/usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.)

• 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: AB

NEW QUESTION 21

The dpkg-____ command will ask configuration questions for a specified package, just as if the package were being installed for the first time.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
reconfigure

NEW QUESTION 22

Which character, added to the end of a command, runs that command in the background as a child process of the current shell?

• A. !
• B. +
• C. &
• D. %
• E. #

Answer: C

NEW QUESTION 23

Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
mkdir, /usr/bin/mkdir

NEW QUESTION 24

Which of the following statements is correct for a command line ending with a & character?

• A. The command’s output is redirected to/dev/null.
• B. The result of the command defines if the next command will be run.
• C. Thecommand is run in background of the current shell.
• D. The command is run as a direct child of theinitprocess.

Answer: C

NEW QUESTION 25

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

Answer: A

NEW QUESTION 26

Which of the following shell commands makes the already defined variable TEST visible to new child processes? (Choose two.)

• A. visible TEST
• B. declare +x TEST
• C. declare –x TEST
• D. export TEST
• E. export –v TEST

Answer: D

NEW QUESTION 27

Which utility would be used to change how often a filesystem check is performed on an ext2 filesystem without losing any data stored on that filesystem?

• A. mod2fs
• B. fsck
• C. tune2fs
• D. mke2fs
• E. fixe2fs

Answer: C

NEW QUESTION 28

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

• A. dd if=/dev/zero of=/dev/sda bs=512
• B. dd if=/dev/zero of=/dev/sda bs=512 count=1
• C. dd if=/dev/zero of=/dev/sda bs=440 count=1
• D. dd if=/dev/zero of=/dev/sda bs=440

Answer: C

NEW QUESTION 29
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