[Jan 06, 2022] Valid XK0-004 Test Answers & XK0-004 Exam PDF
Valid Linux+ XK0-004 Dumps Ensure Your Passing
Who should take the XK0-004 exam
The CompTIA Linux+ certification is an internationally-recognized validation that identifies persons who earn it as possessing skilled in CompTIA Linux+. if a candidate wants significant improvement in career growth needs enhanced knowledge, skills, and talents. The CompTIA Linux+ certification provides proof of this advanced knowledge and skill. If a candidate has knowledge of associated technologies and skills that are required to pass CompTIA XK0-004 Exam then he should take this exam.
CompTIA XK0-004: Exam Structure
The CompTIA XK0-004 exam contains a maximum of 90 questions. The question formats that appear in the test are performance-based, multiple response, fill in the blank, and multiple choice. The students have 90 minutes to complete all of these questions. At the present moment, the exam can be taken in English only. The Spanish, Japanese, and Portuguese languages will be available soon. To achieve the passing score, the candidates must have at least 720 points on a scale of 100-900. They should register for and schedule the test through the Pearson VUE website. They have to pay the fee of $338 before completing the registration process. The individuals can sit for the exam online or at one of the Pearson VUE testing centers across the world.
NEW QUESTION 112
A technician wants to secure a sensitive workstation by ensuring network traffic is kept within the local subnet. To accomplish this task, the technician executes the following command:
echo 0 > /proc/sys/net/ipv4/ip_default_ttl
Which of the following commands can the technician use to confirm the expected results? (Choose two.)
- A. tcpdump
- B. iperf
- C. ip
- D. traceroute
- E. route
- F. arp
Answer: E,F
NEW QUESTION 113
Joe, a user, creates a short shell script, shortscript.sh, and saves it in his home directory with default permissions and paths. He then attempts to run the script by typing ./shortscript.sh, but the command fails to execute.
Which of the following commands would have allowed the script to run?
- A. chgrp shortscript.sh Joe
- B. source ./shortscript.sh
- C. chmod u+x shortscript.sh
- D. chmod 155 ~/shortscript.sh
Answer: C
NEW QUESTION 114
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?
- A. Clone the feature branch into the master branch.
- B. Save the changes to the master branch automatically with each Git commit.
- C. Merge the changes from the feature branch to the master branch.
- D. Pull the changes from the feature branch into the master branch.
Answer: C
Explanation:
Explanation/Reference: https://git-scm.com/book/en/v2/Git-Branching-Basic-Branching-and-Merging
NEW QUESTION 115
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?
- A. cd /etc/localln -s /usr/share/zoneinfo/US/Pacific localtime
- B. cd /etcln -s /usr/share/zoneinfo/US/Pacific localtime
- C. cd /usr/localln -s /usr/share/zoneinfo/US/Pacific zoneinfo
- D. cd /usr/share/localln -s /usr/share/zoneinfo/US/Pacific localectl
Answer: B
NEW QUESTION 116
A Linux administrator wants to fetch a Git repository from a remote Git server.
Which of the following is the BEST command to perform this task?
- A. git config
- B. git clone
- C. git merge
- D. git checkout
Answer: B
Explanation:
Reference:
https://git-scm.com/book/en/v2/Git-Basics-Working-with-Remotes
NEW QUESTION 117
A Linux administrator built a GitLab server. Later that day, a software engineer tried to access the server to upload the repository during the final step of installation. The software engineer could not access the website.
Which of the following firewall rules would allow access to this site?
- A. iptables -A INPUT -p tcp -m multiport --dports 80,443 -m conntrack -cstate NEW, ESTABLISHED -j ACCEPT
- B. iptables -A INPUT -p tcp -m multiport --dports 80,443 -m conntrack -cstate RELATED, ESTABLISHED -j ACCEPT
- C. iptables -A INPUT -p tcp -m multiport --dports 80,443 -m conntrack -cstate NEW, ESTABLISHED -j REJECT
- D. iptables -A INPUT -p tcp -m multiport --dports 80,443 -m conntrack -cstate ESTABLISHED -j ACCEPT
Answer: B
NEW QUESTION 118
A systems administrator is enabling quotas on the /home directory of a Linux server. The administrator makes the appropriate edits to the /etc/fstab file and attempts to issue the commands to enable quotas on the desired directory. However, the administrator receives an error message stating the filesystem does not support quotas.
Which of the following commands should the administrator perform to proceed?
- A. quotacheck -cg
- B. quotaon /home
- C. mount -o remount /home
- D. edquota /home
Answer: B
NEW QUESTION 119
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 120
Ann, a user, has created a new directory and noticed that permissions on the new directory are as follows:
drwx------. 1 ann ann 0 Jun 11 08:20 work
Which of the following should the administrator do to restore default permissions for newly created directories?
- A. Execute chattr command to restore default access.
- B. Run chmod command to update permissions.
- C. Modify directory ownership to ann:ann with chown.
- D. Change umask value in /etc/profile.
Answer: D
Explanation:
Reference:
https://geek-university.com/linux/set-the-default-permissions-for-newly-created-files/
NEW QUESTION 121
A Linux administrator is helping the security team troubleshoot an SELinux policy violation incident. Which of the following would be the BEST utility command to display SELinux violation and AVC denial messages?
- A. aureport | grep AVC
- B. cat /var/log/messages | grep selinux
- C. journalctl | grep sealert
- D. sealert -a /var/log/audit/audit.log
Answer: D
NEW QUESTION 122
Given the output below:
Which of the following commands can be used to remove MyPhoto.jpg from the current directory?
- A. ln -rm ./Pictures/photo.jpg
- B. unlink ./MyPhoto.jpg
- C. del Pictures/photo.jpg
- D. rm -rf ./Pictures
- E. rm -f MyPhoto.jpg
Answer: A
NEW QUESTION 123
A Linux administrator is adding a static IP address to a network interface on a Linux system. The administrator modifies the ifcfg- eth0 configuration file with the following settings:
After the administrator restarts the Linux server, the system is not connected to the network. Which of the following configuration settings needs to be changed?
- A. Set NETMASK to 255.255.0.0 and ONBOOT to yes.
- B. Set USERCTL to yes and ONBOOT to no.
- C. Set BOOTPROTO to BOOTP and USERCTL to yes.
- D. Set BOOTPROTO to NONE and ONBOOT to yes.
Answer: A
NEW QUESTION 124
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 125
A junior systems administrator needs to schedule a backup script named /scripts/backup.sh and make the correct changes to the crontab.
Which of the following crontab entries would run the script every Monday at 2:05 a.m.?
- A. 1 * * 5 2 /scripts/backup.sh
- B. 5 2 * * 1 /scripts/backup.sh
- C. 1 * * 2 5 /scripts/backup.sh
- D. 5 2 * * 0 /scripts/backup.sh
- E. 2 5 * * 1 /scripts/backup.sh
Answer: B
Explanation:
Reference:
https://tecadmin.net/crontab-in-linux-with-20-examples-of-cron-schedule/
NEW QUESTION 126
A Linux administrator installed a new network adapter and temporarily disabled the network service from starting on boot. The partial output of chkconfig is as follows:
Which of the following commands BEST describes how the administrator should re-enable the network service?
- A. chkconfig --level 6 network on
- B. chkconfig --level 0 network on
- C. chkconfig --level 345 network on
- D. chkconfig --level 12 network on
- E. chkconfig --level 0-6 network on
Answer: C
NEW QUESTION 127
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 128
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
Explanation:
Reference:
https://linuxhint.com/list-usb-devices-linux/
NEW QUESTION 129
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Conclusion
Based on PayScale’s recent research, the average salary of CompTIA Linux+ certified professionals is around $74k per annum. Why wait and let an hour-thirty minutes test prevent you from reaching your potential earnings? Pass XK0-004 exam and attain the CompTIA Linux+ certification using perceptive study materials and climb the career ladder.
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