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Home LPI 305-300

LPI 305-300 Exam Practice Questions (P. 4)

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Question #16
What happens when the following command is executed twice in succession? docker run -tid -v data:/data debian bash
  1. A
    The container resulting from the second invocation can only read the content of /data/ and cannot change it.
  2. B
    Each container is equipped with its own independent data volume, available at /data/ in the respective container.
  3. C
    Both containers share the contents of the data volume, have full permissions to alter its content and mutually see their respective changes.
  4. D
    The original content of the container image data is available in both containers, although changes stay local within each container.
  5. E
    The second command invocation fails with an error stating that the volume data is already associated with a running container.

Correct Answer:
C

Question #17
What is the purpose of the kubelet service in Kubernetes?
  1. A
    Provide a command line interface to manage Kubernetes.
  2. B
    Build a container image as specified in a Dockerfile.
  3. C
    Manage permissions of users when interacting with the Kubernetes API.
  4. D
    Run containers on the worker nodes according to the Kubernetes configuration.
  5. E
    Store and replicate Kubernetes configuration data.

Correct Answer:
D

Question #18
If docker stack is to be used to run a Docker Compose file on a Docker Swarm, how are the images referenced in the Docker Compose configuration made available on the Swarm nodes?
  1. A
    docker stack builds the images locally and copies them to only those Swarm nodes which run the service.
  2. B
    docker stack passes the images to the Swarm master which distributes the images to all other Swarm nodes.
  3. C
    docker stack instructs the Swarm nodes to pull the images from a registry, although it does not upload the images to the registry.
  4. D
    docker stack transfers the image from its local Docker cache to each Swarm node.
  5. E
    docker stack triggers the build process for the images on all nodes of the Swarm.

Correct Answer:
C

Question #19
Which of the following commands executes a command in a running LXC container?
  1. A
    lxc-attach
  2. B
    lxc-batch
  3. C
    lxc-run
  4. D
    lxc-enter
  5. E
    lxc-eval

Correct Answer:
A

Question #20
Which of the following statements in a Dockerfile leads to a container which outputs hello world? (Choose two.)
  1. A
    ENTRYPOINT "echo Hello World"
  2. B
    ENTRYPOINT [ "echo hello world" ]
  3. C
    ENTRYPOINT [ "echo", "hello", "world" ]
  4. D
    ENTRYPOINT echo Hello World
  5. E
    ENTRYPOINT "echo", "Hello", "World"

Correct Answer:
BC

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