Lpi DevOps Tools Engineer 701-100 Questions & Answers

• Question 31:

  Which of the following tasks are completed by docker-compose down when it is used with additional parameters? (Choose two correct answers.)

  A. Delete all volumes defined in the composer file.

  B. Delete all containers defined in the composer file.

  C. Delete all networks defined in the composer file.

  D. Delete all images used in the composer file from the Docker nodes.

  E. Delete all images built from the composer file from their registry.

  Correct Answer: AD

  https://docs.docker.com/compose/reference/down/

• Question 32:

  Which docker-machine sub command outputs a list of commands that set environment variables which are required to make docker work with a Docker host managed by docker-machine? (Specify only the sub command without any path or parameters.)

  A. env

  Correct Answer: A

• Question 33:

  Which elements exist on the highest level of the definition of every Kubernetes Objects? (Specify the name of one of the elements, without any values.)

  A. apiVersion

  Correct Answer: A

• Question 34:

  How is a Docker container image retrieved from a Docker registry?

  A. Docker retrieves a ZIP archive which is extracted into the container's root file system.

  B. Multiple stacked images are retrieved and layered on top of each other.

  C. A flat hard disk image is downloaded once per container and mounted as the root file system.

  D. The registry merger all components of the image into one file which is shipped to Docker.

  E. The container is built from an ISO file along with a configuration for an unattended installation.

  Correct Answer: B

  https://www.ibm.com/developerworks/library/mw-1608-tost-trs/index.html

• Question 35:

  Which of the following container names could have been assigned automatically by Docker?

  A. docker-c00001

  B. 2.0.17.172

  C. container

  D. c0023817

  E. clever_ritchie

  Correct Answer: E

  https://docs.docker.com/v17.09/engine/userguide/networking/default_network/container-communication/

• Question 36:

  Which of the statements below are true about the volume created by the following command? (Choose two correct answers.)

  docker run –v /data –ti debian

  A. The new /data volume contains a copy of the complete container's base image.

  B. The volume containing the container's rootfile system is retained until the /data volume is deleted.

  C. The /data volume is discarded when the container terminates.

  D. The /data volume can be attached to another Docker container.

  E. If the command is run a second time, another volume for /data is created.

  Correct Answer: DE

• Question 37:

  Which of the following commands lists the nodes in a Docker Swam cluster?

  A. docker-swarm listnodes

  B. docker engine ls

  C. docker node ls

  D. docker machine ls

  E. docker swarm nodes

  Correct Answer: C

  https://docs.docker.com/engine/swarm/manage-nodes/

• Question 38:

  What statement is true regarding the Swarm service created by the following command?

  docker service create --name myweb --network webnet --mode global nginx

  A. It runs exactly one time in the Swarm and cannot be scaled.

  B. It runs exactly once on each node in a Swarm.

  C. It runs on one node by default and can be scaled to an arbitrary number of replicas.

  D. It runs on all nodes which provide the network webnet.

  E. It runs only on those nodes which support the network type global.

  Correct Answer: B

• Question 39:

  Which of the following mechanisms are used for service discovery in a container environment? (Choose two correct answers.)

  A. The container platform offers a command like docker service discover which should be run within a container.

  B. The container platform sets environment variables containing service information within the containers.

  C. The container platform lists localhost ports assigned to containers in each container's /etc/services file.

  D. The container platform mounts the sockets for all available services into the container's file systems.

  E. The container platforms maintains DNS records which point to containers offering a specific service.

  Correct Answer: BE

• Question 40:

  Which of the following functions are provided by the Ansible apt module? (Choose two correct answers.)

  A. Update an installed package to the latest version.

  B. Update the list of available packages from configured repositories.

  C. Re-compile an installed package from the source code.

  D. Add the URL of a new repository to the package manager configuration.

  E. Install a dpkg based Linux distribution on an empty target system.

  Correct Answer: AB

  https://docs.ansible.com/ansible/latest/modules/apt_module.html