CompTIA Exam XK0-005 Topic 2 Question 31 Discussion

Actual exam question for CompTIA's XK0-005 exam

Question #: 31
Topic #: 2

A Linux user reported the following error after trying to connect to the system remotely:

ssh: connect to host 10.0.1.10 port 22: Resource temporarily unavailable

The Linux systems administrator executed the following commands in the Linux system while trying to diagnose this issue:

Which of the following commands will resolve this issue?

Afirewall-cmd --zone=public --permanent --add-service=22

Bsystemct1 enable firewalld; systemct1 restart firewalld

Cfirewall-cmd --zone=public --permanent --add-service=ssh

Dfirewall-cmd --zone=public --permanent --add-port=22/udp

Show Suggested Answer

Suggested Answer: C

After fixing issues in the code, the next step is to merge these changes into the main branch.This is typically done by creating a pull request78.

Reference: 7(https://zeet.co/blog/deploy-to-production) 8(https://stackoverflow.com/questions/11833511/git-deploy-to-production)

by Mireya at Jun 01, 2024, 05:15 PM

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Lillian

I think option C is the way to go. Adding the SSH service to the firewall's public zone should resolve the issue. The other options don't seem quite right.

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Kristal

8 days ago

Hmm, it seems like the issue is with the firewall. The error message indicates that the remote SSH connection is being blocked, so we need to open up the firewall for SSH traffic.

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