Free RedHat EX188 Practice Exams

RedHat EX188 Practice Exams

Last updated on Oct 22,2026
  • Exam Code: EX188
  • Exam Name: Red Hat Certified Specialist in Containers
  • Certification Provider: RedHat
  • Latest update: Oct 22,2026
Question #161

Which Podman command mounts a host directory into a container?

  • A . podman run -v /host:/container
  • B . podman copy /host:/container
  • C . podman attach /host:/container
  • D . podman bind /host:/container

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Correct Answer: A
A

Explanation:

The -v option in podman run mounts a host directory into the container, allowing shared data access.
Question #162

What does the podman exec command do?

  • A . Runs a command in a running container
  • B . Exits the container
  • C . Creates a new container
  • D . Exports container logs

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Correct Answer: A
A

Explanation:

podman exec allows you to run commands inside a running container for troubleshooting or maintenance.
Question #163

How do you update a running container’s configuration?

  • A . podman update <container>
  • B . podman config <container>
  • C . podman modify <container>
  • D . podman restart –config <container>

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Correct Answer: A
A

Explanation:

podman update changes certain configuration parameters of a running container, such as resource limits.
Question #164

What does podman unshare do?

  • A . Runs a command in a new user namespace
  • B . Stops all running containers
  • C . Deletes all unshared volumes
  • D . Lists user namespaces

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Correct Answer: A
A

Explanation:

podman unshare allows you to execute commands in a new user namespace, useful for managing container storage as a non-root user.
Question #165

Which option gives a container additional Linux capabilities?

  • A . –cap-add
  • B . –privileged
  • C . –add-permissions
  • D . –cap-increase

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Correct Answer: A
A

Explanation:

The –cap-add option grants specific Linux capabilities to a container, extending its privileges selectively.
Question #166

Which instruction sets the default command for a container while allowing arguments to be passed?

  • A . ENTRYPOINT
  • B . CMD
  • C . RUN
  • D . WORKDIR

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Correct Answer: A
A

Explanation:

ENTRYPOINT sets the default executable and allows additional arguments to be passed at runtime.
Question #167

How do you troubleshoot a container that fails to start?

  • A . podman events –all
  • B . podman logs <container>
  • C . podman restart <container>
  • D . podman ps –troubleshoot

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Correct Answer: B
B

Explanation:

podman logs provides error messages that can help identify why a container fails to start.
Question #168

Which option specifies the container’s hostname during podman run?

  • A . –host
  • B . –hostname
  • C . –name
  • D . –domain

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Correct Answer: B
B

Explanation:

The –hostname option sets the hostname for the container, useful for identification in networks.
Question #169

What is the function of podman export?

  • A . Exports a container’s filesystem as a tar archive
  • B . Saves an image with its metadata
  • C . Pushes a container to a registry
  • D . Commits changes to an image

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Correct Answer: A
A

Explanation:

podman export exports the container’s filesystem state, excluding metadata, as a tar archive.
Question #170

How do you remove an image from the local system using Podman?

  • A . podman delete <image>
  • B . podman remove <image>
  • C . podman rmi <image>
  • D . podman clean <image>

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Correct Answer: C
C

Explanation:

The podman rmi command removes a specified image from the local image store.
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