Docker DCA Practice Test - Questions Answers, Page 16

Is this statement correct?

Solution: A Dockerfile stores the Docker daemon's configuration options.

Seven managers are in a swarm cluster.

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

Solution: 4-2-1

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

Solution: isolation between resources used by containers

Your organization has a centralized logging solution, such as Splunk.

Will this configure a Docker container to export container logs to the logging solution?

Solution. docker run -- log driver=splunk for every container at run time

Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?

Solution. Delete the image and remove permissions to the repository in the Docker

Trusted Registry.

In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository?

Solution: Keep a backup copy of the image on another repository.

In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository?

Solution: Tag the image with 'nginx:immutable'.

Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?

Solution: Set IGNORE_TLS in the 'daemon.json' configuration file.

You are pulling images from a Docker Trusted Registry installation configured to use self-signed certificates, and this error appears:

'x509: certificate signed by unknown authority.

You already downloaded the Docker Trusted Registry certificate authority certificate from https://dtr.example.com/ca.

How do you trust it? (Select two.)