A network administrator installed a web server on a Linux host and added a firewalld command to open port 80/tcp. The web server worked without error until an updated and patched kernel was installed on the system a month later. Now users are unable to access the web server even though the service is running.
Which of the following would fix the issue?

A. Use the firewalld command to open the HTTP application service rather than the port

B. Change the firewalld zone to private and open port tcp/80

C. Issue an additional firewalld command to open up port tcp/443 as well as port tcp/80

D. Use the firewalld command to open tcp/80 both with and without the --permanent switch








 

Suggested Answer: B

Community Answer: D

Reference:
https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-firewalld-on-centos-7

This question is in XK0-004 CompTIA Linux+ Exam
For getting CompTIA Linux+ Certificate


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