DCA ONLINE VERSION & LATEST DCA EXAM FORUM

DCA Online Version & Latest DCA Exam Forum

DCA Online Version & Latest DCA Exam Forum

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Tags: DCA Online Version, Latest DCA Exam Forum, Valid DCA Test Camp, DCA Exam Vce, DCA Free Download

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One of the key factors for passing the exam is practice. Candidates must use DCA practice test material to be able to perform at their best on the real exam. This is why ActualPDF has developed three formats to assist candidates in their Docker DCA Preparation. These formats include desktop-based Docker DCA practice test software, web-based practice test, and a PDF format.

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Top DCA Online Version Free PDF | High Pass-Rate Latest DCA Exam Forum: Docker Certified Associate (DCA) Exam

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The DCA exam consists of 55 multiple-choice questions, which must be answered within 90 minutes. To pass the exam, candidates must score at least 65%. DCA exam is available in multiple languages, including English, Japanese, and Simplified Chinese. DCA Exam can be taken online or at an authorized testing center.

Docker Certified Associate (DCA) Exam Sample Questions (Q132-Q137):

NEW QUESTION # 132
Is this a type of Linux kernel namespace that provides container isolation?
Solution. Process ID

  • A. No
  • B. Yes

Answer: B

Explanation:
Explanation
Process ID is a type of Linux kernel namespace that provides container isolation. Process ID (pid) namespace isolates the process ID number space, which means that processes in different pid namespaces can have the same PID. This allows each container to have its own init process (PID 1), which is the first process to start in a container and the ancestor of all other processes in the container. Pid namespace also prevents processes in one container from seeing or signaling processes in another container or on the host system, unless they share the same pid namespace or have the CAP_SYS_PTRACE capability. References:
https://docs.docker.com/engine/reference/run/#pid-settings-pid,
https://en.wikipedia.org/wiki/Linux_namespaces#Process_ID_(pid)


NEW QUESTION # 133
You created a new service named 'http' and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service?
Solution:'docker inspect http'

  • A. Yes
  • B. No

Answer: B

Explanation:
Explanation
= The 'docker inspect' command returns low-level information on Docker objects, such as containers, images, networks, etc1 It does not show the list of historical tasks for a service. To view the list of tasks for a service, you need to use the 'docker service ps' command 2. For example, to see the tasks for the 'http' service, you would run 'docker service ps http'. This would show the ID, name, image, node, desired state, current state, and error of each task 2. References: Docker inspect | Docker Docs, Docker service ps | Docker Docs


NEW QUESTION # 134
Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory?
Solution: namespaces

  • A. Yes
  • B. No

Answer: B


NEW QUESTION # 135
Is this the purpose of Docker Content Trust?
Solution: Verify and encrypt Docker registry TLS.

  • A. No
  • B. Yes

Answer: B


NEW QUESTION # 136
You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this?
Solution: Turn the configuration file into a configMap object, use it to populate a volume associated with the pod, and mount that file from the volume to the appropriate container and path.

  • A. Yes
  • B. No

Answer: B

Explanation:
= Mounting the configuration file directly into the appropriate pod and container using the .spec.containers.configMounts key is not a valid way to provide a configuration file to a container at runtime. The .spec.containers.configMounts key does not exist in the Kubernetes API1. The correct way to provide a configuration file to a container at runtime is to use a ConfigMap2. A ConfigMap is a Kubernetes object that stores configuration data as key-value pairs. You can create a ConfigMap from a file, and then mount the ConfigMap as a volume into the pod and container. The configuration file will be available as a file in the specified mount path3. Alternatively, you can also use environment variables to pass configuration data to a container from a ConfigMap4. Reference:
PodSpec v1 core
Configure a Pod to Use a ConfigMap
Populate a Volume with data stored in a ConfigMap
Define Container Environment Variables Using ConfigMap Data


NEW QUESTION # 137
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