CompTIA XK0-005 Exam - 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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Evangelina

3 months ago

I disagree, A is too vague. C is the best option here!

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Eva

3 months ago

Wait, can you really use port 22 for UDP? That seems off.

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Glory

3 months ago

I think A could work too, but C seems more specific.

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Tawna

4 months ago

Definitely C! Adding SSH is the way to go.

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Leigha

4 months ago

Looks like a firewall issue.

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Kenneth

4 months ago

I’m a bit confused about the difference between adding a service and adding a port. I wonder if option D could also work, but I think it’s less likely.

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Torie

4 months ago

I practiced a similar question, and I feel like enabling and restarting the firewall is important, but I can't recall if it's the right command here.

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Ressie

4 months ago

I think option C makes sense since it specifically mentions adding the SSH service, which is what we need for port 22.

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Kyoko

5 months ago

I remember something about configuring the firewall for SSH access, but I'm not sure if it's option C or A.

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Jutta

5 months ago

Ah, I see. The firewall-cmd commands look like the way to go. I'll make sure to add the SSH service to the public zone.

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Regenia

5 months ago

I think the key here is to enable the firewall service and then add the SSH service to the public zone. That should resolve the connectivity problem.

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Leeann

5 months ago

I'm a bit confused here. The question mentions the administrator ran some commands, but I'm not sure if those were the right ones to fix the issue.

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Helene

5 months ago

Okay, let me think this through. The error message says the resource is temporarily unavailable, so it's likely a firewall configuration problem.

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Kattie

5 months ago

Hmm, this looks like a firewall issue. I'll need to check the firewall settings to see if the SSH port is open.

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Audry

5 months ago

Hmm, I'm not entirely sure about this one. I'll need to think it through step-by-step to make sure I understand the implications.

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Socorro

5 months ago

Hmm, I'm a bit unsure about this one. The question is asking for the definition, so I'll need to make sure I really understand the concepts behind each answer choice.

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Fatima

10 months ago

Ah, the old 'Resource temporarily unavailable' error. Classic! I'd go with option C, as it's the most straightforward way to open up the firewall for SSH traffic.

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Flo

9 months ago

User 3: Agreed, option C seems like the best choice here.

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Chan

9 months ago

User 2: Yeah, that command should open up the firewall for SSH.

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Kayleigh

9 months ago

User 1: I think option C is the way to go.

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Rosann

10 months ago

This is a tricky one! I'm going to go with option C as well. It's always a good idea to double-check the firewall settings when troubleshooting remote connection issues.

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Hayley

8 months ago

User 4: Great, let's try that and see if it resolves the issue.

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Filiberto

8 months ago

User 3: That command should allow SSH connections through the firewall.

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Annelle

9 months ago

User 2: Agreed, let's go with firewall-cmd --zone=public --permanent --add-service=ssh.

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Shantell

10 months ago

User 1: I think option C is the right choice.

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Lillian

10 months ago

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

11 months 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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