Updated XK0-004 Practice Exam [2022] For Earning CompTIA Linux+ Certification Successfully

Regina2022-08-19T02:51:28+00:00

How about choosing the updated XK0-004 practice exam V15.02 from ITExamShop for earning the CompTIA Linux+ certification successfully? We have updated the correct XK0-004 exam questions and answers based on the exam objectives. We present the most updated XK0-004 practice exam in a PDF file, which can be used on your mobile phone, tablets, and pc. Please make sure you can complete the XK0-004 exam before January 16, 2023. Since the XK0-005 exam for the CompTIA Linux+ certification launched on July 12, 2022, the XK0-004 exam will remain till January 16, 2023.

Check The Most Updated XK0-004 Practice Exam By Reading The XK0-004 Free Demo Questions

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1. A Linux administrator must identify a user with high disk usage.

The administrator runs the # du Cs /home/* command and gets the following output:

Based on the output, User3 has the largest amount of disk space used. To clean up the file space, the administrator needs to find out more information about the specific files that are using the most disk space.

Which of the following commands will accomplish this task?

df Ck /home/User/files.txt

du Ca /home/User3/*

du Csh /home/User/

find . Cname /home/User3 -print

2. Which of the following BEST describes running on a Linux system?

Containers only need the namespaces functionally to run on a Linux system available since kernel 2.6.

Containers need a hypervisor to run a Linux system. Cgroups namespaces are functionalities used for the kernel but not for running containers.

Containers only need the cgroups functionality for running on a Linux system. Namespaces is not a Linux kernel functionality needed for creating and managing containers.

Containers use the cgroups and namespaces functionalities to isolate processes and assign hardware resources to each of those isolated processes.

3. A technical support engineer receives a ticket from a user who is trying to create a 1KB file in the /tmp directory and is getting the following error No space left on device. The support engineer checks the /tmp directory, and it has 20GB of free space.

Which of the following BEST describes a possible cause for this error?

The /tmp directory is not mounted.

The filesystem is formatted with a 4MB block size.

the filesystem ran out of inodes.

The /tmp directory has been set with an immutable attribute.

4. Given the output below:

Which of the following commands can be used to remove MyPhoto.jpg from the current directory?

unlink ./MyPhoto.jpg

del Pictures/photo.jpg

rm Crf ./Pictures

rm Cf MyPhoto.jpg

ln Crm ./Pictures/photo.jpg

5. Which of the following configuration management tools is considered agentless?

Ouppet

Salt

Ansible

Chef

6. An administrator needs to change the IP address on a server remotely. After updating the configuration files, a network restart is needed. However, the administrator fears that when the network connection drops, the network restart script will be killed before the new IP address has been set.

Which of the following commands would prevent the script from being killed?

nohup service network restart

service network restart &

echo “service network restart” | at now

dg service network restart

7. An administrator is tasked with increasing the size of the volume /dev/vg/lv to 20GB.

Which of the following BEST illustrates the steps the administrator should take?

vgextend CL20G /dev/vg/lv; resizelv /dev/vg/lv

parted CL20G /dev/vg/lv; remount /dev/vg/lv

mkfs CL20G /dev/vg/lv; tune2fs /dev/vg/lv

lvextend CL20G /dev/vg/lv; resize2fs /dev/vg/lv

8. A junior administrator of a physical server receives log messages indicating the out-of-memory killer has been active. All memory slots are in use on the motherboard, but additional disk space is available. Space has been allocated for a swap file.

Which of the following should the administrator use to reduce the output of memory messages?

free: swapoff / swapfile ; swapon -a

mkswap /swapfile; swapon Ca

fallocate Cl 2G /swapfile && swapon Ca

echo “1” > /proc/meninfo ; swapon / swapfile

9. A user has connected a Bluetooth mouse to a computer, but it is not working properly.

Which of the following commands should the systems administrator use to fix the issue?

lsmod Ci bluetooth

insmod bluetooth

modprobe Cr bluetooth

depmod Ci bluetooth

10. DRAG DROP

The lead Linux has added a disk, /dev/sdd, to a VM that is running out of disk space.

Place the following steps in the correct order from first (1) to last (4) to add the disk to the existing LVM.

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11. A systems administrator wants to know the current status of a series of dd jobs that were started in the background three hours ago.

Which of the following commands will achieve this task?

sudo killall CHUP dd

sudo killall dd

sudo killall CTERM dd

sudo killall -USR1 dd

12. Given that a company’s policy states that users cannot install third-party tools on Window servers, which of the following protocols will allow a Linux GUI to connect to a Windows server?

VNC

RDP

X11

13. A system administrator has deployed a Linux server based on an Anaconda process with all packages and custom configurations necessary to install a web server role.

Which of the following could be used to install more Linux servers with the same characteristics?

/etc/sysconfig/anaconda/cfg

/root/anaconda.auto

/root/anaconda-ks.cfg

/etc/sysconfig/installation.cfg

14. Which of the following is the purpose of the vmlinux file on a Linux system?

To prevent a Linux kernel panic

To start a Linux virtual machine

To provide the executable kernel for the system

To enable resource access to the network

15. An administrator reviews the following configuration file provided by a DevOps engineer:

Which of the following would the application parsing this file MOST likely have to support?

YAML

AJAX

JSON

SOAP

16. A junior Linux administrator is trying to verify connectivity to the remote host host1 and display round-trip statistics for ten ICMP.

Which of the following commands should the administrator execute?

ping Cc 10 host1

traceroute Cc 10 host1

netstat host1

pathping Cc 10 host1

17. A Linux administrator is testing connectivity to a remote host on a shared terminal. The administrator wants to allow other users to access the terminal while the command is executing.

Which of the following commands should the administrator use?

bg ping remotehost

fg ping remotehost

ping remotehost < results

ping remotehost &

18. A junior Linux administrator is setting up system-wide configuration settings.

The goal is to ensure the PATH environment variable includes the following locations for all users who log into a Linux system.

The administrator issues the following commands at the terminal:

Respectively, the output of these commands is as follows:

Given this output, which of the following would be the BEST action for the administrator to perform to address this issue?

Update the /etc/profile.d file using a text editor, navigate to the PATH element add the missing locations, and run the bash_completion.sh script to update the changes.

Update the /etc/profile file using a text editor, navigate to the PATH element, add the missing locations and run the . /etc/profile command to update the changes.

Update the /etc/profile.d file using a text editor, navigate to the PATH element, add the missing locations, and reboot to update the changes.

Update the /etc/profile file using a text editor navigate to the PATH element, add the missing locations, and restart the bash process to update the changes.

19. A new corporate policy states that Bluetooth should be disabled on all company laptops.

Which of the following commands would disable the use of Bluetooth?

echo “blacklist bluetooth” > /etc/modprobe.d/blacklist-bluetooth

echo “kill bluetooth” > /etc/modprobe.d/kill-bluetooth

echo “modprobe bluetooth” > /etc/modprobe.d/modprbe-bluetooth

echo “rmod bluetooth” > /etc/modprobe.d/rmmod-bluetooth

20. A systems administrator needs to append output of ls Clha /opt command to the contents of a test.txt file.

Which of the following commands will accomplish this?

ls Clha /opt > test.txt

ls Clha /opt < test.txt

ls Clha /opt >> test.txt

ls Clha /opt << test.txt

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21. Which of the following configuration files should be modified to disable Ctrl-Alt-Del in Linux?

/etc/inittab

~/.bash_profile

/etc/securetty

/etc/security/limits.conf

22. Which of the following BEST describes the purpose of the X11 system?

X11 provides graphical display capabilities

X11 provides command line capabilities

X11 provides networking capabilities

X11 provides telephony capabilities.

23. 1.Which of the following would be the BEST solution for a systems administrator to access the graphical user environment of a Linux machine remotely?

VNC

KDE

X11

RPC

24. A systems administrator has finished building a new feature for the monitoring software in a separate Git branch.

Which of the following is the BEST method for adding the new feature to the software’s master branch?

Merge the changes from the feature branch to the master branch.

Save the changes to the master branch automatically with each Git commit.

Clone the feature branch into the master branch.

Pull the changes from the feature branch into the master branch.

25. A server is almost out of free memory and is becoming unresponsive.

Which of the following sets of commands will BEST mitigate the issue?

free, fack, partprobe

lsof, lvcreate, mdadm

df, du, rmmod

fdisk, mkswap, swapon -a

26. A Linux server has multiple IPs. A Linux administrator needs to verify if the HTTP server port is bound to the correct IP.

Which of the following commands would BEST accomplish this task?

route

host

nslookup

netstat

27. Which of the following statements BEST represents what the term “agentless” means regarding orchestration?

Installation of a tool is not required on the remote system to perform orchestration tasks

It facilitates version control when using infrastructure as code during orchestration

It automatically removes malware from the remote system during orchestration

A tool can only be accessed remotely to perform orchestration tasks

28. A systems administrator observes high latency values when reaching a remote web server.

Which of the following commands will help determine and isolate issues on the network side?

mtr

dig

netstat

route

29. In order to comply with new security policies, an administrator needs to prevent the SSH server from using insecure algorithms.

Which of the following files should be edited to accomplish this?

/etc/ssh/sshd_config

/etc/ssh/ssh_config

~/.ssh/ssh_config

/etc/ssh/known_hosts

30. Which of the following is the purpose of the monitoring server role?

To aggregate web traffic to watch which websites employees are visiting

To collect status and performance information about the servers in an environment

To provide user authentication services to a network

To provide real-time analysis of potential threats to the organization

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31. An administrator needs to see a list of the system user’s encrypted passwords.

Which of the following Linux files does the administrator need to read?

/etc/shadow

/etc/skel

/etc/passwd

/etc/pw

32. A Linux administrator wants to obtain a list of files and subdirectories in the /etc directory that contain the word “services”. Once the files and subdirectories are discovered, they should be listed alphabetically in the /var/tmp/foundservices file.

Which of the following shell scripts will accomplish this task?

#/bin/bashfind /etc Cname services | sort > /var/tmp/foundservices

#/bin/bashlocate /etc Csort Cname services > /var/tmp/foundservices

#/bin/bashfind Cname services Csort </var/tmp/foundservices

#/bin/bashfind /etc Cname services Csort > /var/tmp/foundservices

33. A system administrator has set up third-party log aggregation agents across several cloud instances. The systems administrator wants to create a dashboard of failed SSH attempts and the usernames used.

Which of the following files should be watched by the agents?

/var/log/audit/audit.log

/var/log/kern.log

/var/log/monitor

/etc/rsyslog.conf

34. A user attempts to use the mount -a command but gets the following error:

mount: mount point /mnt/test does not exist

Which of the following commands best describes the action the Linux administrator should take NEXT?

mount Ca /mnt/test

mkdir Cp /mnt/test

mdadm Cp /mnt/test

mkfs /mnt/test

touch /mnt/test

35. A Linux administrator opens a ticket to have an external hard drive mounted. As a security policy, external storage kernel modules are disabled.

Which of the following is the BEST command for adding the proper kernel module to enable external storage modules?

rmmod /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-storage.ko

modinfo /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-storage.ko

depmod /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-storage.ko

insmod /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-storage.ko

36. A Linux administrator is testing a new web application on a local laptop and consistently shows the following 403 errors in the laptop’s logs”

The web server starts properly, but an error is generated in the audit log.

Which of the following settings should be enabled to prevent this audit message?

httpd_can_network_connect = 1

httpd_enable_scripting = 1

httpd_enable_homedirs = 1

httpd_enable_cgi = 1

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Updated XK0-004 Practice Exam [2022] For Earning CompTIA Linux+ Certification Successfully

Check The Most Updated XK0-004 Practice Exam By Reading The XK0-004 Free Demo Questions

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