CompTIA Exam XK0-005 Topic 4 Question 33 Discussion

Actual exam question for CompTIA's XK0-005 exam

Question #: 33
Topic #: 4

A Linux administrator has defined a systemd script docker-repository.mount to mount a volume for use by the Docker service. The administrator wants to ensure that the Docker service does not start until the volume is mounted. Which of the following configurations needs to be added to the Docker service definition to best accomplish this task?

AAfter=docker-repository.mount

BExecStart=/usr/bin/mount -a

CRequires=docker-repository.mount

DRequiresMountsFor=docker-repository.mount

Show Suggested Answer

Suggested Answer: B

Thedocker logscommand is used to fetch the logs of a container.If the error output is not showing for a running container, thedocker logscommand can be used to view these details56.

Reference: 5(https://www.docker.com/blog/how-to-fix-and-debug-docker-containers-like-a-superhero/) 6(https://stackoverflow.com/questions/33083385/getting-console-output-from-a-docker-container)

by Judy at Jun 30, 2024, 09:37 AM

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Dannette

1 months ago

I'm just picturing the administrator trying to start the Docker service, but it keeps failing because the volume isn't mounted yet. Talk about a mount-uous task!

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Josue

1 months ago

Wait, should we be using 'Wants' instead of 'Requires'? That way the Docker service will still start even if the mount fails, but it'll try to use the mounted volume if it's available.

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Eladia

4 days ago

D) RequiresMountsFor=docker-repository.mount

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Martina

7 days ago

C) Requires=docker-repository.mount

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Willard

14 days ago

B) ExecStart=/usr/bin/mount -a

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Malinda

20 days ago

A) After=docker-repository.mount

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Carmelina

1 months ago

D seems like the way to go. The 'RequiresMountsFor' directive tells systemd to wait for the specific mount unit to be active before starting the Docker service.

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Rasheeda

1 months ago

I'm pretty sure the answer is A. The 'After' directive ensures that the Docker service starts after the mount unit is active.

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Sueann

8 days ago

That makes sense, it's important to have the volume mounted before starting the Docker service.

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Keneth

17 days ago

Yes, 'After' directive will make sure the Docker service starts after the volume is mounted.

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Gayla

21 days ago

I think you're right, option A is the correct one.

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Shalon

2 months ago

Option C makes the most sense to me. The 'Requires' directive ensures that the Docker service won't start until the docker-repository.mount unit is active.

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Shenika

10 days ago

C) Requires=docker-repository.mount

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Nguyet

13 days ago

B) ExecStart=/usr/bin/mount -a

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Lazaro

23 days ago

A) After=docker-repository.mount

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Vernell

2 months ago

I'm not sure, but I think option A) After=docker-repository.mount could also work. It specifies that the Docker service should start after the specified mount unit is active.

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Goldie

2 months ago

I agree with Laura. Adding Requires=docker-repository.mount to the Docker service definition will make sure that the service waits for the volume to be mounted before starting.

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Laura

2 months ago

I think the answer is C) Requires=docker-repository.mount because it ensures that the Docker service will only start if the specified volume is mounted.

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Jesse

2 months ago

I'm not sure, but I think option A) After=docker-repository.mount could also work. It specifies that the Docker service should start after the specified mount unit is active.

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Bernardine

2 months ago

I agree with Claudio. Adding Requires=docker-repository.mount to the Docker service definition will make sure that the service waits for the volume to be mounted before starting.

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Claudio

3 months ago

I think the answer is C) Requires=docker-repository.mount because it ensures that the Docker service will only start if the specified volume is mounted.

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