Docker DCA Dumps - Docker Certified Associate (DCA) Exam PDF Sample Questions

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Exam Code:
DCA
Exam Name:
Docker Certified Associate (DCA) Exam
169 Questions
Last Update Date : 22 April, 2024
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Realexamdumps Providing most updated Docker Certified Associate Question Answers. Here are a few exams:


Sample Questions

Realexamdumps Providing most updated Docker Certified Associate Question Answers. Here are a few sample questions:

Docker DCA Sample Question 1

Some Docker images take time to build through a Continuous Integration environment. You want to speed up builds and take advantage of build caching.

Where should the most frequently changed part of a Docker image be placed in a Dockerfile?


Options:

A. at the bottom of the Dockerfile
B. after the FROM directive
C. at the top of the Dockerfile
D. in the ENTRYPOINT directive

Answer: B

Docker DCA Sample Question 2

Will this command ensure that overlay traffic between service tasks is encrypted?

Solution: docker network create -d overlay --secure


Options:

A. Yes
B. No

Answer: C

Docker DCA Sample Question 3

Which of the following is supported by control groups?


Options:

A. Manage certificates
B. Collect net
C. Limit CPU usage within a container
D. Isolate processes in a container

Answer: D

Docker DCA Sample Question 4

Will this command ensure that overlay traffic between service tasks is encrypted?

Solution: docker service create --network --encrypted


Options:

A. Yes
B. No

Answer: C

Docker DCA Sample Question 5

Does this describe the role of Control Groups (cgroups) when used with a Docker container?

Solution: user authorization to the Docker API


Options:

A. Yes
B. No

Answer: C

Docker DCA Sample Question 6

You are troubleshooting a Kubernetes deployment called api, and want to see the events table for this object. Does this command display it?

Solution: kubectl events deployment api


Options:

A. Yes
B. No

Answer: C

Docker DCA Sample Question 7

You have created a Docker bridge network on a host with three containers attached, how do you make this containers accessible outside of the host?


Options:

A. Use network attach to access the containers on the bridge network
B. Use either EXPOSE or --publish to access the containers on the bridge network
C. Use network connect to access the containers on the bridge network
D. Use --link to access the containers on the bridge networkCorrect

Answer: C

Docker DCA Sample Question 8

One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times. Is this the action taken by the orchestrator to fix the unhealthy container?

Solution: The controller managing the pod is autoscaled back to delete the unhealthy pod and alleviate load.


Options:

A. Yes
B. No

Answer: B

Docker DCA Sample Question 9

Seven managers are in a swarm cluster.

Is this how should they be distributed across three datacenters or availability zones?

Solution: 5-1-1


Options:

A. Yes
B. No

Answer: C

Docker DCA Sample Question 10

What is the difference between a resource limit and a resource reservation when scheduling services?


Options:

A. A resource limit and a resource reservation can be used interchangeably.
B. A resource limit is a soft limit for your service, while a reservation is hard limit and the docker engine will do its best to keep your service at the limit.
C. A resource limit is used to find a host with adequate resources for scheduling a hard limit for your service, while a reservation is hard limit for your service.
D. A resource limit is hard limit for your service, while a reservation is used to find a host with adequateresources for scheduling. Correct

Answer: B

Docker DCA Sample Question 11

You add a new user to the engineering organization in DTR.

Will this action grant them read/write access to the engineering/api repository?

Solution: Add them to a team in the engineering organization that has read/write access to the engineering/api repository.


Options:

A. Yes
B. No

Answer: C

Docker DCA Sample Question 12

Which flag for a service would allow a container to consume more than 2 GB of memory only when there is no memory contention but would also prevent a container from consuming more than 4GB of memory, in any case?


Options:

A. --limit-memory 2GB --reserve-memory 4GB
B. --limit-memory 4GB --reserve-memory 2GB
C. --memory-swap 2GB --limit-memory 4GB
D. --memory-swap 4GB --limit-memory 2GB

Answer: D


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