Get Docker DCA Exam Practice Questions - Real and Updated

Answer : A

= Setting INSECURE_REGISTRY in the /etc/docker/default configuration file is one way to configure the Docker engine to use a registry without a trusted TLS certificate.This option tells the Docker daemon to accept insecure connections to the specified registry, bypassing the certificate verification1.However, this method is not recommended, as it exposes the registry and the Docker engine to potential security risks2.A better way to use a registry without a trusted TLS certificate is to add the registry's CA certificate to the Docker daemon's trust store, as described in the Docker documentation3or other online guides4.Reference:

1: How to build docker registry without SSL

2: Verify repository client with certificates | Docker Docs

3: ''docker pull'' certificate signed by unknown authority

4: Login to docker registry with client certificate under windows

Answer : A

= Scanning images to detect any security vulnerability is a function of UCP.UCP integrates with Docker Trusted Registry (DTR), which is a secure and scalable image storage solution1.DTR has a built-in image scanning feature that checks every layer of every image for known vulnerabilities and displays the results in the UCP web UI2. This helps users to identify and fix any security issues before deploying their applications.UCP also allows users to enforce security policies and only allow running applications that use images that are scanned and free of vulnerabilities3.Reference:

Docker Trusted Registry | Docker Docs

Scan images for vulnerabilities | Docker Docs

Manage images | Docker Docs

Answer : A

Process ID is a type of Linux kernel namespace that provides container isolation.Linux namespaces are a feature of the Linux kernel that isolate and virtualize system resources of a collection of processes1.Process ID namespace isolates the process ID number space, meaning that processes in different PID namespaces can have the same PID2.This allows each container to have its own init process with PID 1, which is the ancestor of all other processes in the container3.Process ID namespace also affects other identifiers, such as thread IDs, parent process IDs, and session IDs4.Reference: Namespaces in operation), pid_namespaces),What is a PID namespace?, Linux Namespaces: PID)

Answer : B

= (Please check the official Docker site for the comprehensive explanation)Reference: (Some possible references from the web search results are)

25 Free Questions on Docker Certified Associate Exam - Whizlabs

Practice Questions for Docker Certified Associate (DCA) Exam - Medium

Practice Exams (3 Sets) - Docker Certified Associate (DCA) - Udemy

Docker Certified Associate Practice Exam | +600 exam quizz - Udemy

Docker Certified Associate DCA Practice Exam | UPDATED 2023 - Udemy

I hope this helps you in your exam preparation. Good luck!

Answer : B

n: = Using the DTR web UI to make all tags in the repository immutable is not a good way to prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository. This is because making all tags immutable would prevent any updates to the images in the repository, which may not be desirable for some use cases. For example, if a user wants to push a new version of 'nginx:latest' with a security patch, they would not be able to do so if the tag is immutable.A better way to prevent an image from being overwritten by another user is to use the DTR web UI to create a promotion policy that restricts who can push to a specific tag or repository1.Alternatively, the user can also use the DTR API to create a webhook that triggers a custom action when an image is pushed to a repository2.Reference:

Prevent tags from being overwritten | Docker Docs

Create webhooks | Docker Docs