CompTIA Exam XK0-005 Topic 2 Question 32 Discussion

Actual exam question for CompTIA's XK0-005 exam

Question #: 32
Topic #: 2

An operations engineer is planning to start a container running a PostgreSQL database. The engineer wants the container to start automatically at system startup, mount the /home/db directory as /var/lib/postgresql inside the container, and expose port 5432 to the OS. Which of the following commands should the engineer run to achieve this task?

Adocker run -d --restart always -p 5432:5432 -v /home/db:/var/lib/postgresql postgresql:12

Bdocker run -d --restart -p 5432:5432 --volume /var/lib/postgresql:/home/db postgresql:12

Cdocker run -d --attach --platform 5432:5432 --volume /home/db:/var/lib/postgresql postgresql:12

Ddocker run -d --init --restart --publish 5432:5432 --workdir /home/db:/var/lib/postgresql postgresql:12

Show Suggested Answer

Suggested Answer: A

systemctl status httpd is the correct option to check if the Apache web server (httpd) is running. The systemctl status command provides detailed information about the service, including whether it is active and running.

by Gwenn at Jun 24, 2024, 01:10 PM

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Devora

2 months ago

Wait, is it just me or does option A sound like a recipe for a delicious PostgreSQL-infused docker stew?

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Julio

2 months ago

Option D is a bit of a mess. The --init, --restart, and --workdir flags don't seem to be used correctly in this context.

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Jolene

2 months ago

Option C doesn't look right. The --attach flag is likely for attaching to a running container, not starting a new one. And the --platform flag doesn't seem relevant here.

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Arlene

24 days ago

A) docker run -d --restart always -p 5432:5432 -v /home/db:/var/lib/postgresql postgresql:12

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Skye

26 days ago

Yeah, I agree. Option C doesn't seem right. The --attach flag doesn't fit the scenario.

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Clarinda

30 days ago

B) docker run -d --restart -p 5432:5432 --volume /var/lib/postgresql:/home/db postgresql:12

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Amie

1 months ago

A) docker run -d --restart always -p 5432:5432 -v /home/db:/var/lib/postgresql postgresql:12

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My

2 months ago

I'm not sure about option B. The --volume flag seems to have the directory order reversed compared to option A.

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Jonell

1 months ago

User 3: Thanks for pointing that out. I'll go with option A to ensure the directory mapping is correct.

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Carolynn

1 months ago

User 2: I agree. Option B seems to have the directory order reversed, which could cause issues.

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Tom

2 months ago

User 1: Option A looks correct. The -v flag should be used to specify the volume mapping.

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Eulah

3 months ago

Option A seems correct. The --restart always flag ensures the container starts automatically at system startup, and the -v flag mounts the /home/db directory to the container's /var/lib/postgresql directory.

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Arthur

29 days ago

User 4: Sounds good, let's go with option A then.

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Jovita

1 months ago

User 3: And the -v flag will mount the directory correctly.

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Rosio

1 months ago

User 2: Yes, the --restart always flag will make sure the container starts at system startup.

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Micah

2 months ago

User 3: Thanks for clarifying. I will use docker run -d --restart always -p 5432:5432 -v /home/db:/var/lib/postgresql postgresql:12 to start the PostgreSQL container.

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Aaron

2 months ago

User 2: Yes, that's right. Option A is the correct command to achieve the desired task.

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Dona

2 months ago

User 1: Option A seems correct. The --restart always flag ensures the container starts automatically at system startup, and the -v flag mounts the /home/db directory to the container's /var/lib/postgresql directory.

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