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LPI 305-300 Exam Practice Questions (P. 3)

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Question #11
Which of the following statements are true about container-based virtualization? (Choose two.)
  1. A
    Each container runs its own operating system kernel.
  2. B
    Different containers may use different distributions of the same operating system.
  3. C
    Container-based virtualization relies on hardware support from the host system’s CPU.
  4. D
    All containers run within the operating system kernel of the host system.
  5. E
    Linux does not support container-based virtualization because of missing kernel APIs.

Correct Answer:
BD

Question #12
How does Packer interact with system images?
  1. A
    Packer has to be installed within the target image and is executed during the image’s first boot in order to execute preparation tasks.
  2. B
    Packer installs a client within the image which has to be run periodically via cron in order to retrieve the latest template from the Packer server and apply it locally.
  3. C
    Packer periodically connects through the network to the Packer daemons of all running Packer images in order to re-apply the whole template to the running instance.
  4. D
    Packer downloads and extracts an image in order to make changes to the image’s file system, repack the modified image and upload it again.
  5. E
    Packer creates an instance based on a source image, prepares the instance through a network connection and bundles the resulting instance as a new system image.

Correct Answer:
E

Question #13
After setting up a data container using the following command: docker create -v /data --name datastore debian /bin/true how is an additional new container started which shares the /data volume with the datastore container?
  1. A
    docker run --share-with datastore --name service debian bash
  2. B
    docker run -v datastore:/data --name service debian bash
  3. C
    docker run --volumes-from datastore --name service debian bash
  4. D
    docker run -v /data --name service debian bash
  5. E
    docker run --volume-backend datastore -v /data --name service debian bash

Correct Answer:
C

Question #14
After creating a new Docker network using the following command: docker network create --driver bridge isolated_nw which parameter must be added to docker create in order to attach a container to the network?
  1. A
    --eth0=isolated_nw
  2. B
    --alias=isolated_nw
  3. C
    --ethernet=isolated_nw
  4. D
    --network=isolated_nw
  5. E
    --attach=isolated_nw

Correct Answer:
D

Question #15
Which of the following network interface types are valid in an LXD container configuration? (Choose three.)
  1. A
    ipsec
  2. B
    macvlan
  3. C
    bridged
  4. D
    physical
  5. E
    wifi

Correct Answer:
BCD

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