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DCA Certification & DCA Trustworthy Exam Torrent

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Docker Certified Associate (DCA) exam is a certification exam that validates one's skills and knowledge in using Docker containers. DCA exam is designed for individuals who have a good understanding of Docker fundamentals and are looking to advance their skills in this area. The DCA exam is an industry-recognized certification that demonstrates one's expertise in Docker technologies and practices.

Docker Certified Associate (DCA) Certification Exam is a professional certification that validates a candidate’s knowledge and proficiency in using Docker Enterprise Edition (EE) and Docker Community Edition (CE) in a real-world environment. DCA Exam is designed to test the candidate’s ability to perform tasks related to Docker, such as deploying and managing Docker containers, working with images, networking, and security.

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The DCA certification exam is a performance-based exam, which means that candidates are required to complete a set of tasks using Docker in a real-world scenario. DCA Exam is timed and candidates have two hours to complete the tasks. DCA exam is available in English, Japanese, and Simplified Chinese.

Docker Certified Associate (DCA) Exam Sample Questions (Q178-Q183):

NEW QUESTION # 178
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: Kubernetes automatically triggers a user-defined script to attempt to fix the unhealthy container.

A. Yes
B. No

Answer: B

Explanation:
Explanation
Kubernetes does not automatically trigger a user-defined script to attempt to fix the unhealthy container, because Kubernetes does not have such a feature. According to the official documentation, Kubernetes only supports three types of probes: exec, httpGet, and tcpSocket, and none of them can execute arbitrary scripts.
References:
https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-a-li

NEW QUESTION # 179
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

A. Yes
B. No

Answer: B

Explanation:
Explanation
The answer depends on whether you want to access the container from the host's network or from other containers on the same network. EXPOSE and --publish have different effects on the container's port visibility. References: Docker run reference, Dockerfile reference, Docker networking overview

NEW QUESTION # 180
In the context of a swarm mode cluster, does this describe a node?
Solution: a physical machine participating in the swarm

A. Yes
B. No

Answer: A

Explanation:
Explanation
A node is a physical or virtual machine running Docker Engine in swarm mode1. A node can be either a manager or a worker, depending on its role in the cluster1. A physical machine participating in the swarm is a node, regardless of its role or availability2. References:
* How nodes work | Docker Docs
* Manage nodes in a swarm | Docker Docs

NEW QUESTION # 181
A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster.
Can this be used to schedule containers to meet the security policy requirements?
Solution: resource reservation

A. Yes
B. No

Answer: B

NEW QUESTION # 182
Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?
Solution.Delete the image and delete the image repository from Docker Trusted Registry.

A. Yes
B. No

Answer: B

Explanation:
Explanation
The sequence of steps will not completely delete an image from disk in the Docker Trusted Registry. Deleting an image and deleting an image repository from the Docker Trusted Registry will only remove the references to the image, but not the actual image data on the disk1. To completely delete an image from disk, you need to run the garbage collection command on the registry server, which will delete any unreferenced blobs2. The garbage collection command is bin/registry garbage-collect /path/to/config.yml3. References: Deleting an image), Garbage collection), Running garbage collection)

NEW QUESTION # 183
......

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