Latest [Dec 15, 2021] XK0-004 Exam Dumps - Valid and Updated Dumps
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CompTIA XK0-004: Prerequisites
The candidates for the CompTIA XK0-004 exam do not have to fulfill any compulsory requirements. However, it is recommended that they pursue CompTIA A+ and CompTIA Network+ before going for the Linux+ certification and its test. This is necessary to prepare them adequately for the content of this exam. Additionally, the applicants should have at least twelve months of experience as a Linux Administrator.
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NEW QUESTION 42
A systems administrator is configuring options on a newly installed Linux VM that will be deployed to the Pacific time zone. Which of the following sets of commands should the administrator execute to accurately configure the correct time settings?
cd /etc
- A. ln -s /usr/share/zoneinfo/US/Pacific localtime
cd /usr/share/local - B. ln -s /usr/share/zoneinfo/US/Pacific zoneinfo
cd /etc/local - C. ln -s /usr/share/zoneinfo/US/Pacific localectl
- D. ln -s /usr/share/zoneinfo/US/Pacific localtime
cd /usr/local
Answer: D
NEW QUESTION 43
An analyst is trying to determine which public IP addresses are managed by Company A, but the script is not working correctly.
Which of the following explains what is wrong with the script?
- A. $(cat ip-list.txt) should be changed to `cat ip-list.txt` in the for statement.
- B. The for should be changed to while in the loop.
- C. The > should be changed to 2> in the do statement.
- D. The -ne flag should be changed to -eq in the if statement.
Answer: A
NEW QUESTION 44
The Apache web server was recently installed on a Debian/Ubuntu server. The web server fails and a review of log messages on another partition reveals the installation was not completed properly due to lack of disk space.
After clearing the files, the systems administrator has requested the installation to be performed again.
Which of the following command lines will perform this task? (Choose two.)
- A. apt-get --reinstall install apache2
- B. apt-get install apache2
- C. apt-get --purge remove acache2
- D. apt-get --reinstall apache2
Answer: B,C
Explanation:
Explanation/Reference: https://askubuntu.com/questions/111770/how-reinstall-apache2
NEW QUESTION 45
A company requires all servers to be configured with the BIOS on Coordinated Universal Time and the OS on Central Standard Time.
Which of the following can be used to change the time according to these requirements? (Choose two.)
- A. date
- B. time
- C. localectl
- D. crontab
- E. LC_ALL
- F. hwclock
Answer: A,F
NEW QUESTION 46
An administrator is troubleshooting to determine why backups are failing on a particular server. The administrator runs the ps command and analyzes the following output.
The administrator runs kill -9 10112 yet the process remains.
Which of the following BEST describes the issue and how to fix it?
- A. The backup process is a zombie process, and the system needs to be rebooted.
- B. The backup process is using 100% of system resources and needs to be rescheduled with renice.
- C. The backup process is out of memory, and more memory needs to be added to the system.
- D. The backup process is still running and needs to be killed with kill -9 --force 10112.
Answer: A
NEW QUESTION 47
A junior Linux administrator needs to access production servers using a secure SSH protocol. Which of the following files should contain the public key to gain remote access to the server?
- A. ~/ssh/authorized-keys
- B. /etc/authorized_keys
- C. ~/.ssh/authorized_keys
- D. /etc/sshd/ssh.conf
Answer: C
Explanation:
Reference:
https://www.linode.com/docs/security/securing-your-server/
NEW QUESTION 48
Which of the following statements BEST represents what the term "agentless" means regarding orchestration?
- A. Installation of a tool is not required on the remote system to perform orchestration tasks
- B. It facilitates version control when using infrastructure as code during orchestration
- C. A tool can only be accessed remotely to perform orchestration tasks
- D. It automatically removes malware from the remote system during orchestration
Answer: A
Explanation:
Reference:
https://whatis.techtarget.com/definition/agentless
NEW QUESTION 49
A Linux administrator must identify a user with high disk usage. The administrator runs the # du -s /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?
- A. du -a /home/User3/*
- B. du -sh /home/User/
- C. find . -name /home/User3 -print
- D. df -k /home/User3/files.txt
Answer: B
Explanation:
Explanation/Reference: https://unix.stackexchange.com/questions/37221/finding-files-that-use-the-most-disk-space
NEW QUESTION 50
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?
- A. #/bin/bashlocate /etc -sort -name services > /var/tmp/foundservices
- B. #/bin/bashfind /etc -name services -sort > /var/tmp/foundservices
- C. #/bin/bashfind -name services -sort </var/tmp/foundservices
- D. #/bin/bashfind /etc -name services | sort > /var/tmp/foundservices
Answer: A
NEW QUESTION 51
A Linux administrator retrieved a repository of files from a Git server using git clone. The administrator wants to see if a configuration file was added to the repository. Which of the following Git arguments should be used to see the recent modifications?
- A. pull
- B. fetch
- C. log
init
Answer: A
NEW QUESTION 52
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?
- A. /etc/rsyslog.conf
- B. /var/log/monitor
- C. /var/log/audit/audit.log
- D. /var/log/kern.log
Answer: A
NEW QUESTION 53
A Linux administrator needs to take stock of USB devices attached to the system.
Which of the following commands would be BEST to complete this task?
- A. modprobe --usb
- B. lsusb
- C. cat /proc/USB
- D. lspci
Answer: B
NEW QUESTION 54
A systems administrator suspects a process with a PID of 2864 is consuming resources at an alarming rate.
The administrator uses the command renice -n -5 -p2864, but it does not solve the issue. Which of the following commands should the administrator execute to correct the issue?
- A. renice -n 10 -p 2864
- B. nice -n 5 -p 2864
- C. renice -n -10 -p 2864
- D. nice -n -5 -p 2864
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION 55
A systems administrator notices several intensive tasks executing from users Joe and Ann. These processes are impacting server operations but must be allowed to continue running.
Which of the following commands should the systems administrator run to reduce the impact on the server?
- A. renice 11 -u joe ann
- B. pkill -u joe ann
- C. nohup -u joe ann
- D. strace -u joe ann
Answer: A
Explanation:
Reference:
20systems,the%20Linux%20version%20of%20renice
NEW QUESTION 56
An administrator receives a warning about a file system filling up, and then identifies a large file located at /tmp/largelogfile. The administrator deletes the file, but no space is recovered on the file system.
Which of the following commands would BEST assists the administrator in identifying the problem?
- A. pkill /tmp/largelogfile
- B. ps -ef | grep largelogfile
- C. lsof | grep largelogfile
- D. pgrep largelogfile
Answer: C
Explanation:
Reference:
https://access.redhat.com/solutions/2316
NEW QUESTION 57
Which of the following would be the BEST solution for a systems administrator to access the graphical user environment of a Linux machine remotely?
- A. RPC
- B. KDE
- C. X11
- D. VNC
Answer: D
NEW QUESTION 58
A junior systems is configuring localization option environment variables. The administrator is given a checklist of tasks with the following requirements:
* View current settings of the LC_ALL environment variable only.
* Modify the LANGenvironment variable to US English Unicode.
Given this scenario, which of the following should be performed to meet these requirements? (Choose two.)
- A. export $LANG = en_US.UTF
- B. echo $LC_ALL
- C. stty
- D. export LANG = en_US.UTF-8
- E. cat $LC_ALL
- F. locale
Answer: D,F
Explanation:
Explanation/Reference: https://www.tecmint.com/set-system-locales-in-linux/
NEW QUESTION 59
A Linux systems administrator is implementing Source Code Management for the web application server configuration files located in /etc/httpd/. Which of the following steps should the administrator perform FIRST?
- A. Configure the directory for git using 'git config'
- B. Clone the remote repository using 'git clone'
- C. Retrieve the remote changes using 'git commit'
- D. Create a new repository using 'git init'
Answer: A
NEW QUESTION 60
A junior Linux administrator is installing a new application with CPU architecture requirements that have the following specifications:
x64 bit
3.0GHz speed
Minimum quad core
The administrator wants to leverage existing equipment but is unsure whether the requirements of these systems are adequate. The administrator issues the following command cat/proc/cpuinfo. The output of the command is as follows:
Which of the following is the recommended course of action the administrator should take based on this output?
- A. Recompile the Linux kernel to support the installation.
- B. Procure new equipment that matches the recommended specifications
- C. Reconfigure lib modules to support the new application.
- D. Install the application, as the system meets the application requirements
Answer: D
NEW QUESTION 61
A Linux administrator needs to back up the folder /usr/domain, and the output must be a gzip compressed tar. Which of the following commands should be used?
- A. tar -cvf /usr/domain domain.tar.gz
- B. tar -cv domain.tar.gz /usr/domain
- C. tar -czvf domain.tar.gz /usr/domain
- D. tar -cxzv /usr/domain domain.tar.gz
Answer: C
Explanation:
Explanation
Explanation/Reference: https://help.ubuntu.com/community/BackupYourSystem/TAR
NEW QUESTION 62
A Linux administrator must identify a user with high disk usage. The administrator runs the # du -s /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?
- A. du -a /home/User3/*
- B. du -sh /home/User/
- C. find . -name /home/User3 -print
- D. df -k /home/User3/files.txt
Answer: B
Explanation:
Explanation/Reference: https://unix.stackexchange.com/questions/37221/finding-files-that-use-the-most-disk-space
NEW QUESTION 63
A Linux systems administrator is troubleshooting an issue with the /homedirectory running out of space. The administrator needs to determine which /homedirectories are using the most space. Which of the following commands should be used?
- A. du
- B. fsck
- C. lvs
- D. cdf
Answer: A
Explanation:
Explanation/Reference: https://www.cs.washington.edu/lab/faq/home-directory-size
NEW QUESTION 64
A user issues the following command:
ls -l /var/log | egrep -e '^d[rwx]{3}.*[rw-]{3}.*'
The list of files in the system is shown below:
Which of the following results matches the command issued?
- A. drwxr-xr-x 2 root root 4096 Apr 24 08:36 apt
drwxr-xr-x 2 root root 4096 Apr 9 14:25 dist-upgrade
drwxr-x--- 2 root adm 4096 Apr 25 14:41 unattended-upgrades - B. drwxr-xr-x 2 root root 4096 Apr 24 08:36 apt
drwxr-xr-x 2 root root 4096 Apr 9 14:25 dist-upgrade
drwxr-x--- 2 root adm 4096 Apr 25 15:41 attended-upgrades - C. -rw-r--r-- 1 root root 2877 Apr 24 14:14 alternatives.log
-rw-r--r-- 1 syslog adm 246139 Jun 12 15:21 cloud-init.log
-rw-r--r-- 1 root root 8872 Jun 12 15:21 cloud-init-output.log - D. drwxr-x--- 2 root adm 4096 Apr 25 14:41 unattended-upgrades
drwxr-x--- 2 root adm 4096 Apr 25 15:41 attended-upgrades
Answer: C
NEW QUESTION 65
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?
- A. sudo killall dd
- B. sudo killall -TERM dd
- C. sudo killall -HUP dd
- D. sudo killall -USR1 dd
Answer: D
NEW QUESTION 66
An administrator is installing a new kernel but is getting an error indicating the filesystem is out of space. A disk usage check shows / has plenty of space.
Which of the following BEST represents where the administrator should check next?
- A. /proc
- B. /var
- C. /boot
- D. /etc
Answer: A
NEW QUESTION 67
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