XK0-004 CompTIA Exam Questions and Free Practice Test

Question 25

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:
XK0-004 dumps exhibit
Which of the following is the recommended course of action the administrator should take based on this output?

A. Install the application, as the system meets the application requirements

B. Procure new equipment that matches the recommended specifications

C. Recompile the Linux kernel to support the installation.

D. Reconfigure lib modules to support the new application.

Correct Answer:A

Question 26

Which of the following is a difference between YAML and JSON?

A. Users can comment in YAML but not in JSON

B. JSON only curly brackets, while YAML only uses square brackets

C. JSON is used in web development, while YAML is used solely in back-end systems.

D. YAML has been deprecated for JSON.

Correct Answer:A

Question 27

An engineer is working on a production application deployment that requires changing a web application property file called server.property that is managed by the Git version control system. A cloned copy of the remote repository in which the server.property file exists is on the local desktop computer. The engineer makes appropriate changes to the files, saves it as server.property, and executes git commit –m “changed the property file” server.property. Which of the following commands did the engineer fail to perform?

A. git init server.property

B. git merge server.property

C. git add server.property

D. git push server.property

Correct Answer:D

Question 28

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 ESTABLISHED –j ACCEPT

C. iptables –A INPUT –p tcp –m multiport --dports 80,443 –m conntrack –cstate RELATED, ESTABLISHED –j ACCEPT

D. iptables –A INPUT –p tcp –m multiport --dports 80,443 –m conntrack –cstate NEW, ESTABLISHED –j REJECT

Correct Answer:C

Question 29

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

A. Runlevel 3

B. Runlevel 4

C. Runlevel 5

D. Runlevel 6

Correct Answer:C

Question 30

An administrator has modified the configuration file for a service. The service is still running but is not using the new configured values. Which of the following will BEST remediate this issue?

A. kill -HUP

B. init 0

C. service start

D. renice -10

Correct Answer:A

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