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  1. Home
  2. Docker Certification
  3. DCA Exam
  4. Docker.DCA.v2025-07-01.q110 Dumps
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Question 11

Two development teams in your organization use Kubernetes and want to deploy their applications while ensuring that Kubernetes-specific resources, such as secrets, are grouped together for each application.
Is this a way to accomplish this?
Solution: Add all the resources to the default namespace.

Correct Answer: B
Explanation
Adding all the resources to the default namespace is not a way to accomplish this, because it would not isolate the resources for each application. Instead, the teams should use namespaces, which are a mechanism to organize resources in a Kubernetes cluster. Namespaces provide a scope for names of resources and a way to attach authorization and policy to a subset of the cluster. By creating a separate namespace for each application, the teams can ensure that their resources are grouped together and not accessible by other teams or applications.
References:
* What is a Container? | Docker
* Docker Certified Associate Guide | KodeKloud
* DCA Prep Guide | GitHub
* Namespaces | Kubernetes
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Question 12

A users attempts to set the system time from inside a Docker container are unsuccessful. Could this be blocking this operation?
Solution: inter-process communication

Correct Answer: B
(Please check the official Docker site for the answer) Comprehensive= (Please check the official Docker site for the comprehensive explanation) Reference: (Some possible references from the web search results are) Docker Security - Docker Documentation Docker Security Best Practices - Medium Docker Security Cheat Sheet - GitHub Docker Security: A Comprehensive Guide - Snyk Docker Security: Tips and Tricks to Secure Your Containers - DevSecOps I hope this helps you in your exam preparation. Good luck!
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Question 13

A users attempts to set the system time from inside a Docker container are unsuccessful. Could this be blocking this operation?
Solution: inter-process communication

Correct Answer: B
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Question 14

Will this command mount the host's '/data' directory to the ubuntu container in read-only mode?
Solution: 'docker run -v /data:/mydata --mode readonly ubuntu'

Correct Answer: B
Explanation
= The command docker run -v /data:/mydata --mode readonly ubuntu is not valid because it has some syntax errors. The correct syntax for running a container with a bind mount is docker run [OPTIONS] IMAGE
[COMMAND] [ARG...]. The errors in the command are:
* The option flag for specifying the volume is --volume or -v, not -v. For example, -v
/data:/mydata should be --volume /data:/mydata.
* The option flag for specifying the mode of the volume is --mount, not --mode. For example, --mode readonly should be --mount type=bind,source=/data,target=/mydata,readonly.
* The option flag for specifying the mode of the container is --detach or -d, not --mode. For example, --mode readonly should be --detach.
The correct command for running a container with a bind mount in read-only mode is:
docker run --volume /data:/mydata --mount type=bind,source=/data,target=/mydata,readonly --detach ubuntu This command will run a container using the ubuntu image and mount the host's /data directory to the container's /mydata directory in read-only mode. The container will run in the background (--detach).
References: : docker run reference | Docker Documentation : [Use bind mounts | Docker Documentation]
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Question 15

Will a DTR security scan detect this?
Solution.private keys copied to the image

Correct Answer: A
= A DTR security scan will detect private keys copied to the image. DTR security scan is a feature of Docker Trusted Registry (DTR) that scans images to detect any security vulnerability1. DTR security scan uses the open source tool SecretScanner2 to find unprotected secrets in container images or file systems. SecretScanner can match the contents of images against a database of approximately 140 secret types, including private keys3. Therefore, if an image contains private keys, DTR security scan will report them as potential secrets and alert the user to remove them from the image. Reference:
Scan images for vulnerabilities | Docker Docs
GitHub - deepfence/SecretScanner: :unlock: Find secrets and passwords ...
SecretScanner/deepfence_secret_scanner.py at main * deepfence/SecretScanner
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