Ultimate Guide to Prepare Free Docker DCA Exam Questions & Answer [Q70-Q84]

NEW QUESTION 70
Will a DTR security scan detect this?
Solution: licenses for known third party binary components

Yes

No

NEW QUESTION 71
Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution: Pass the ‘–insecure-registry’ flag to the daemon at run time.

Yes

No

NEW QUESTION 72
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?

Use network attach to access the containers on the bridge network

Use either EXPOSE or –publish to access the containers on the bridge network

Use network connect to access the containers on the bridge network

Use –link to access the containers on the bridge network
Correct

NEW QUESTION 73
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution: Delete ‘/var/lib/docker’ directory.

Yes

No

NEW QUESTION 74
The following Docker Compose file is deployed as a stack:

Is this statement correct about this health check definition?
Solution: Health checks test for app health ten seconds apart. Three failed health checks transition the container into “unhealthy” status.

Yes

No

NEW QUESTION 75
You want to create a container that is reachable from its host’s network. Does this action accomplish this?
Solution: Use either EXPOSE or –publish to access the containers on the bridge network

Yes

No

NEW QUESTION 76
Will this command list all nodes in a swarm cluster from the command line?
Solution: ‘docker Is -a’

Yes

No

NEW QUESTION 77
Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: role-based access control to clustered resources

Yes

No

NEW QUESTION 78
A server is running low on disk space. What command can be used to check the disk usage of images,
containers, and volumes for Docker engine?

‘docker system df’

‘docker system prune’

‘docker system free’

‘docker system ps’

NEW QUESTION 79
Is this the purpose of Docker Content Trust?
Solution: Enable mutual TLS between the Docker client and server.

Yes

No

NEW QUESTION 80
When seven managers are in a swarm cluster how would they be distributed across three datacenters or availability zones?

5-1-1

3-2-2

3-3-1

4-2-1

NEW QUESTION 81
An application image runs in multiple environments, and each environment uses different certificates and ports, what is the best practice to deploy the containers?

Create a Dockerfile for each environment, specifying ports and ENV variables for certificates.

Create a Dockerfile for each environment, specifying ports and Docker secrets for certificates.

Create images that contain the specific configuration for every environment.

Create a config file for each environment.

NEW QUESTION 82
Will this command list all nodes in a swarm cluster from the command line?
Solution: ‘docker node Is’

Yes

No

NEW QUESTION 83
Is this a type of Linux kernel namespace that provides container isolation?
Solution: Storage

Yes

No

NEW QUESTION 84
You have just executed ‘docker swarm leave’ on a node. What command can be run on the same node to confirm it has left the cluster?

docker node ls

docker system info

docker system status

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