CompTIA Linux+ Certification Exam (XK0-004) Free Practice Test

Question 1

A user does not want Bluetooth to start up event time the system starts. Which of the following commands should the user execute to accomplish this task?

A. systemctl disable bluetccth.service

B. systemctl stepped bluetccth.service

C. systemctl stop bluetooth.service

D. systemctl disabled bluetcc-h.service

Correct Answer: A

Question 2

An administrator notices a website hosted on an httpd web server is not loading. Upon further inspection, the administrator learns there are no httpd processes running. When starting the service, the site operates correctly for a few minutes before the process disappears again.
Which of the following should the administrator consider as the MOST likely possibility before troubleshooting the issue?

A. An external database to which the web server connects is offline, causing httpd to die due to execution errors.

B. The CPU has too much load, causing it to overheat, and the kernel is automatically killing the processes to keep the CPU cool.

C. The out-of-memory killer was activated due to low available memory, causing the kernel to kill the processes automatically.

D. The server is intermittently losing access to the network, causing socket errors that trigger httpd to die.

E. Shared libraries, which were recently updated, are causing compatibility issues and httpd to die due to

Correct Answer: C

Question 3

A systems administrator is attempting to use the locate command to find recently downloaded files. Which of the following commands must be run before locate will return results?

A. find

B. updatedb

C. whereis

D. locate -u

Correct Answer: C

Question 4

An administrator needs to create a shared directory in which all users are able, write, and execute its content but none of the regular users are able to delete any content.
Which of the following permissions should be applied to this shared directory?

A. rwxrwxrwt

B. rwxrwxrws

C. rwxrwxrw*

D. rwxrwxrwx

Correct Answer: D

Question 5

In which of the following Linux GUI environments would the Konsole application MOST likely be found?

A. Unity

B. Gnome

C. KDE

D. Cinnamon

E. MATE

Correct Answer: C

Question 6

A user cannot write files to the /home/user directory. The junior Linux administrator runs the following commands:

Which of the following BEST represents why the user cannot write files?

A. The filesystem is not configured for the user to write to it.

B. The filesystem does not have a group write permission.

C. The filesystem is out of file space.

D. The filesystem is out of inodes.

Correct Answer: D

Question 7

A Linux administrator needs to switch from text mode to GUI. Which of the following runlevels will start the GUI by default?

A. Runlevel 5

B. Runlevel 4

C. Runlevel 6

D. Runlevel 3

Correct Answer: A

Question 8

Which of the following is used on the client to boot a Linux system from a TFTP server?

A. GRUB

B. PXE

C. HTTP

D. EFI

Correct Answer: B

Question 9

An administrator is writing a Bash script that contains a loop that increments the value of the variable count with each loop iteration by 1. Which of the following should the administrator use?

A. ((++count))

B. $count++

C. Count='expr $count+1'

D. Count = $conunt+1

Correct Answer: B

Question 10

A systems administrator needs to prevent the root account from being used to log in to a Linux server via SSH. Which of the following configuration ies does the systems administrator need to edit to perform this task?

A. /etc/ayaconfig/sshd

B. /etc/passwd

C. -/.ssh/config

D. /etc/sshd/config

Correct Answer: D

Question 11

A systems administrator installed Git on a new workstation and wants to ensure all Git projects on this machine are initialized with the same username and email address.
Which of the following should the administrator use to meet this goal? (Choose two.)

A. git config --global user.name = "James Doe"

B. git config --global user.email = "[email protected]"

C. git config email.addr = [email protected]"

D. echo 'username' = "James Doe"' >> .git/.gitconfig

E. git config username = "James Doe"

F. echo 'email.addr = "[email protected]"' >> .git/.gitconfig

Correct Answer: A,B

Question 12

The dracut command is used to:

A. create the bootloader executable files.

B. create the Boot Manager configuration files.

C. create initial RAMDisk images for preloading modules.

D. compile the Linux kernel images used to boot the OS.

Correct Answer: C

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CompTIA Linux+ Certification (XK0-004) Free Practice Test