Improve Your Knowledge with EX188 Exam Dumps

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June 25, 2025

Practicing with EX188 questions can help you identify areas where you need to improve your knowledge. By answering EX188 questions and reviewing your responses, you can identify gaps in your understanding and focus your study efforts on those areas. The EX188 exam has a strict time limit, and you need to manage your time effectively to answer all the questions. Practicing with RedHat EX188 dumps questions can help you develop time management skills by simulating the exam's time constraints. You'll learn how to pace yourself, manage your time effectively, and ensure that you complete the EX188 exam within the allotted time. Test RedHat EX188 exam free dumps below.

Page 1 of 12

1. How do you get the exit code of a stopped container?

podman status

podman logs

podman inspect

podman result

2. What is the purpose of using podman commit?

Backing up a container’s filesystem state as an image

Pushing a container to a registry

Exporting an image to a tar file

Restoring a container from an image

3. Which two commands start a stopped container? (Select two)

podman start

podman restart

podman run

podman wake

4. What is the purpose of the CMD instruction in a Containerfile?

To set a default command for container execution

To define build-time commands

To set environment variables

To expose ports

5. How do you update a running container’s configuration?

podman update

podman config

podman modify

podman restart --config

6. Which two options are best practices for securing container images? (Select two)

Use minimal base images

Regularly update images

Use --privileged mode

Run as root

7. Which two commands stop all containers in a pod? (Select two)

podman stop --all

podman pod stop

podman stop

podman kill

8. Which two commands remove unused images in Podman? (Select two)

podman rmi

podman prune images

podman system prune

podman clean

9. When would you use the ENTRYPOINT instruction with parameters?

When you need fixed executable behavior with variable arguments

When you need to install software packages

When setting environment variables

When copying files into the container

10. Which command retrieves the first 10 lines of container logs?

podman logs --first 10

podman logs --lines 10

podman logs --tail 10

podman logs --head 10

Page 2 of 12

11. What does the --rm option do when running a container?

Removes the container after it stops

Runs the container in read-only mode

Forces the container to restart

Runs the container with minimal resources

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

ENTRYPOINT

CMD

RUN

WORKDIR

13. What is the purpose of the podman volume create command?

Creates a new named volume

Lists all volumes

Mounts a volume to a container

Deletes a volume

14. What is the purpose of podman run --rm?

Removes the container after it exits

Runs the container in read-only mode

Mounts a volume

Saves the container’s state

15. What does the podman play kube command do?

Deploys containers from a Kubernetes YAML file

Converts Kubernetes YAML to Podman YAML

Runs a Kubernetes cluster locally

Creates a pod from a Containerfile

16. What is the key difference between the ADD and COPY instructions in a Containerfile?

ADD can fetch remote URLs, COPY cannot

COPY decompresses archives, ADD does not

ADD requires a build context, COPY does not

COPY and ADD are identical

17. How do you list all containers, including stopped ones?

podman ps --all

podman list --stopped

podman status --all

podman show --all

18. Which two commands display container restart policies? (Select two)

podman inspect

podman ps --restart

podman config

podman info

19. What does the podman search command do?

Searches for images in local storage

Searches for images in a registry

Lists container processes

Displays image tags

20. Which command creates a pod in Podman?

podman create pod

podman generate pod

podman new pod

podman pod create

Page 3 of 12

21. Which option ensures a container runs with restricted privileges?

--security-opt=no-new-privileges

--privileged

--cap-add=ALL

--user=root

22. Which two commands restart a container? (Select two)

podman restart

podman start --restart

podman stop and podman start

podman run --restart

23. Which two commands display environment variables of a running container? (Select two)

podman inspect

podman exec env

podman logs --env

podman stats --env

24. How do you view the live logs of a running container?

podman logs --tail

podman logs --follow

podman watch

podman events --live

25. Which two instructions help optimize container image size? (Select two)

Use multi-stage builds

Combine commands in RUN statements

Use ENTRYPOINT

Expose all ports

26. How do you pass a secret to a container at runtime?

podman run --env SECRET=value

podman run --secret

podman create --secret-file

podman exec --secret

27. Which command mounts a named volume to a container?

podman run -v myvol:/data

podman mount myvol:/data

podman attach myvol:/data

podman bind myvol:/data

28. Which command lists all container events on the host?

podman logs

podman events

podman ps -a

podman monitor

29. Which command lists all available secrets?

podman secret ls

podman secrets

podman secret list

podman show secrets

30. Which command lists all ports exposed by a Podman container?

podman port

podman ps --ports

podman inspect

podman network ls

Page 4 of 12

31. Which option displays the latest log entries for a container?

podman logs --head

podman logs --tail

podman logs --recent

podman logs --last

32. What does the podman network create command do?

Lists all networks

Creates a new user-defined network

Connects a container to a network

Inspects network settings

33. Which option forces a container to use a read-only filesystem?

--read-only

--rofs

--no-write

--immutable

34. Which two commands can you use to inspect Podman pods? (Select two)

podman pod inspect

podman inspect

podman pod info

podman pod status

35. Which Podman command pauses a running container?

podman pause

podman stop

podman halt

podman suspend

36. What is the benefit of using podman pull with a specific tag?

Downloads a specific version of the image

Automatically updates the image

Forces image deletion

Lists available image versions

37. What happens if you do not clean up volumes after a container is removed?

The container image becomes corrupted

The volumes persist and consume disk space

The container cannot be restarted

The container loses data integrity

38. Which command allows you to stream container logs in real-time?

podman logs --tail

podman events

podman logs --follow

podman stats

39. Which instruction specifies default arguments for the container entry point?

CMD

ENTRYPOINT

ENV

ARG

40. Which command removes all stopped containers?

podman rm -a

podman prune containers

podman clean --all

podman rm --stopped

Page 5 of 12

41. Which option allows you to attach a terminal to a running container?

podman attach

podman exec -it

podman connect

podman interact

42. What is the function of the ENV instruction in a Containerfile?

To execute commands during the build

To set environment variables

To define the container's entry point

To expose ports

43. Which two options allow you to set read-only permissions on a volume? (Select two)

--volume /host:/container:ro

--mount type=bind,source=/host,target=/container,readonly

--secure /host:/container

--readonly /host:/container

44. Which command shows the differences between a container and its base image?

podman diff

podman inspect

podman history

podman logs

45. Which command shows detailed information about an image?

podman inspect

podman info

podman show

podman history

46. Which option with podman run sets a container’s restart policy?

--policy

--restart

--auto-restart

--restart-policy

47. Which option with podman run mounts a named volume?

--volume :/path

--mount volume=,target=/path

--bind :/path

--storage :/path

48. What is the benefit of using named volumes over anonymous volumes?

Easier lifecycle management

Improved performance

Increased security

Reduced disk usage

49. Which two commands stop all containers in a pod? (Select two)

podman stop --all

podman pod stop

podman stop

podman kill

50. Which instruction allows you to change the ownership of files during a build?

COPY --chown

ADD --chown

RUN --chown

WORKDIR --chown

Page 6 of 12

51. Which command starts a stopped container with an interactive session?

podman start -i

podman run -it

podman exec -it

podman attach

52. What does podman save -o image.tar do?

Saves an image to a tar archive named image.tar

Exports a container’s state to image.tar

Pushes an image to a registry

Removes an image from the system

53. Which option provides TLS verification when interacting with a private registry?

--tls

--secure

--tls-verify

--ssl

54. Which two commands export a container image to a file? (Select two)

podman save

podman export

podman commit

podman archive

55. Which two commands create a new container? (Select two)

podman run

podman create

podman exec

podman commit

56. Which Podman command displays the size of container images?

podman images

podman size

podman inspect

podman stats

57. How do you inspect the configuration of a running container?

podman ps --config

podman status

podman inspect

podman view

58. Which two commands allow you to execute commands inside a running container? (Select two)

podman exec

podman run

podman attach

podman start

59. How do you mount a temporary filesystem in a container?

--volume tmpfs:/path

--tmpfs /path

--mount type=tmpfs,target=/path

--memoryfs /path

60. What does podman logout do?

Lists current authentication status

Removes stored credentials for the registry

Updates registry credentials

Pushes images to the registry

Page 7 of 12

61. How do you forcefully remove a running pod in Podman?

podman pod rm -f

podman stop

podman pod kill

podman pod delete --force

62. Which command shows only the container IDs of running containers?

podman ps -q

podman list --ids

podman ps --only-ids

podman inspect --ids

63. What is the function of the podman commit command?

Creates a new image from a container’s state

Stops a running container

Updates a container’s configuration

Exports container logs

64. Which option allows you to specify a custom network for a pod?

--network

--link

--connect

--attach

65. Which command lists all containers, including stopped ones?

podman ps

podman ps --all

podman list --stopped

podman status --all

66. How do you add a new container to an existing pod?

podman run --pod

podman add --to-pod

podman create --stack

podman insert

67. How do you add a secret to a running container?

podman exec --secret

podman update --secret

podman restart --secret

Secrets cannot be added to a running container

68. What is the benefit of using podman image prune?

Removes unused images

Stops running containers

Lists all images

Exports container images

69. Which instruction copies files from the build context to the image?

COPY

ADD

RUN

WORKDIR

70. How do you connect a running container to a network in Podman?

podman network connect

podman network join

podman attach

podman run --network

Page 8 of 12

71. Which two commands help you monitor a container’s resource usage? (Select two)

podman top

podman stats

podman inspect --resources

podman logs --resources

72. What does podman events --since 1h display?

Events from the last hour

Events occurring one hour in the future

Events since the container started

All historical events

73. What is the primary purpose of the RUN instruction in a Containerfile?

To copy files from the host

To execute commands during the image build process

To specify default commands for the container

To define the base image

74. How do you list the processes running inside a container?

podman top

podman ps

podman status

podman exec

75. What does podman save do?

Exports an image to a tar archive

Saves a running container’s state

Commits changes to a container

Creates a new volume

76. What is the effect of using the --readonly option with podman run?

Makes the container’s filesystem read-only

Disables container logging

Prevents the container from stopping

Grants root access to the container

77. Which instruction should you use to copy files from a URL into a container?

ADD

COPY

RUN

ENV

78. Which option mounts a directory read-only when using Podman?

-v /host:/container:ro

-v /host:/container:rw

-m /host:/container

--readonly

79. Which command shows the container’s IP address?

podman ip

podman inspect -f '{{.NetworkSettings.IPAddress}}'

podman ps --ip

podman logs --network

80. How can you view the exit code of a stopped container?

podman ps --exit

podman status

podman inspect

podman logs

Page 9 of 12

81. Which two commands can log in to a container registry? (Select two)

podman login

skopeo login

podman auth

podman creds

82. Which two options should you use to enforce container security? (Select two)

--read-only

--cap-drop

--privileged

--restart always

83. Which command runs a container in detached mode using Podman?

podman start --detach

podman run -d

podman create -b

podman exec -d

84. What is the purpose of multi-stage builds in a Containerfile?

To reduce image size by copying only necessary artifacts

To speed up image builds

To create multiple containers at once

To improve container security

85. Which instruction would you use to copy files from a local directory into the container?

ADD

COPY

RUN

INCLUDE

86. Which command retrieves the container’s start time?

podman logs --start

podman inspect

podman events --start

podman status

87. What is the purpose of cleaning up unused volumes after container deletion?

To save disk space

To enhance container performance

To remove metadata conflicts

To improve runtime security

88. Which two commands display a container’s environment variables? (Select two)

podman inspect

podman env

podman exec env

podman logs

89. How do you check the health status of a container?

podman health

podman inspect

podman ps --health

podman status

90. Which two commands display network information for a container? (Select two)

podman inspect

podman network ls

podman logs

podman network inspect

Page 10 of 12

91. Which command creates a multi-container configuration using YAML?

podman play stack

podman create kube

podman play kube

podman generate kube

92. How do you set a container to restart automatically with Podman?

podman run --restart=always

podman restart --auto

podman auto-restart

podman set --restart=always

93. Which option with podman run sets the working directory for the container?

--cwd

--workdir

--dir

--path

94. Which command creates a container with a read-only filesystem?

podman run --readonly

podman create --rofs

podman exec --readonly

podman start --rofs

95. How do you mount a host directory as a volume in a container?

podman run --volume /host:/container

podman run --bind /host:/container

podman mount --volume /host:/container

podman create --map /host:/container

96. Which two security measures should you take when running containers? (Select two)

Run containers as non-root users

Avoid exposing unnecessary ports

Always use --privileged mode

Disable SELinux

97. Which two commands display a container's volume mounts? (Select two)

podman inspect

podman volume inspect

podman ps --volumes

podman top

98. Which command mounts a container’s root filesystem?

podman mount

podman attach

podman bind

podman volume mount

99. Which command lists all containers using a specific network?

podman network ls --containers

podman ps --network

podman network inspect

podman inspect --net

100. What does podman unshare do?

Runs a command in a new user namespace

Stops all running containers

Deletes all unshared volumes

Lists user namespaces

Page 11 of 12

101. Which two commands display detailed configuration of a running container? (Select two)

podman inspect

podman ps --details

podman info

podman describe

102. Which option enables privileged mode when running a container?

--admin

--privileged

--root

--full-access

103. Which option is used to forcefully remove a running container?

podman rm -f

podman rm --all

podman delete --force

podman stop

104. What is the default location for Podman container storage?

/var/lib/containers/storage

/etc/containers

/usr/local/containers

/opt/podman/storage

105. Which two commands can start a stopped container? (Select two)

podman restart

podman exec

podman start

podman launch

106. What does the podman rm command do?

Removes a stopped container

Removes all images

Removes running containers

Removes container volumes

107. Which command shows all application stacks managed by Podman?

podman list stacks

podman pod ps

podman stack ps

podman compose ls

108. What is the purpose of the --secret option in podman run?

To create a new secret in the container

To pass a secret to the container securely

To expose a secret as an environment variable

To encrypt the container image

109. Which instruction sets a persistent environment variable during the build process?

ENV

EXPORT

SET

CMD

110. Which command would you use to push an image to a registry using a specific tag?

podman push :

podman deploy :

podman send :

podman upload :

Page 12 of 12

111. What is the default registry used by Podman when no registry is specified?

quay.io

docker.io

registry.redhat.io

ghcr.io

112. How do you run a container within an existing pod?

podman create --pod

podman run --network

podman exec --pod

podman start --pod

113. Which command restarts a container?

podman restart

podman start --force

podman run

podman stop

114. Which option ensures a container runs in the background?

-d

-b

--detach

--background

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