DCA EXAM COURSE - NEW DCA EXAM CAMP

DCA Exam Course - New DCA Exam Camp

DCA Exam Course - New DCA Exam Camp

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The DCA certification exam is an objective, online-based exam that tests an individual's knowledge and practical skills in various Docker areas. DCA exam consists of 55 multiple choice and multiple select questions with a time limit of 90 minutes to complete. DCA exam is designed to be challenging and requires significant preparation before taking it. Candidates must score a minimum of 65% to pass the exam and earn the DCA certification. Docker Certified Associate (DCA) Exam certification is valid for two years and then must be renewed.

To take the DCA Exam, candidates must have a good understanding of Docker technologies, including Docker Engine, Docker Compose, Docker Swarm, and Docker Content Trust. They should also be familiar with containerization and associated technologies like Kubernetes, as well as container orchestration and management. DCA exam consists of 55 multiple-choice questions and lasts for 90 minutes.

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The DCA certification is a valuable asset for IT professionals who want to demonstrate their proficiency in Docker. It provides an objective measure of their skills and knowledge, which can be used to enhance their professional credibility and advance their careers. Docker Certified Associate (DCA) Exam certification also provides access to a global community of Docker experts and resources, which can be leveraged to stay up-to-date with the latest trends and best practices in the field. Overall, the DCA Certification is an excellent way for IT professionals to validate their expertise in Docker and differentiate themselves in a competitive job market.

Docker Certified Associate (DCA) Exam Sample Questions (Q150-Q155):

NEW QUESTION # 150
After creating a new service named 'http', you notice that the new service is not registering as healthy. How do you view the list of historical tasks for that service by using the command line?

  • A. 'docker service ps http'
  • B. 'docker service inspect http'
  • C. 'docker ps http'
  • D. 'docker inspect http'

Answer: B


NEW QUESTION # 151
Will this configuration achieve fault tolerance for managers in a swarm?
Solution: only two managers, one active and one passive.

  • A. No
  • B. Yes

Answer: A


NEW QUESTION # 152
Will this command mount the host's '/data1 directory to the ubuntu container in read-only mode?
Solution. 'docker run -v /data:/mydata -mode readonly ubuntu'

  • A. No
  • B. Yes

Answer: A

Explanation:
The command docker run -v /data:/mydata -mode readonly ubuntu will not mount the host's /data1 directory to the ubuntu container in read-only mode. The command has several errors that prevent it from working correctly. First, the host directory should be /data1 instead of /data, as specified in the question. Second, the option flag should be --mode instead of -mode, and it should be placed before the image name. Third, the mode value should be ro instead of readonly, as per the Docker documentation1. The correct command should be docker run -v /data1:/mydata --mode ro ubuntu, which will mount the host's /data1 directory as a read-only volume at /mydata inside the container1. References:
* docker run | Docker Docs


NEW QUESTION # 153
What behavior is expected when a service is created with the following command:
'docker service create --publish 8000:80 nginx'

  • A. Only a single node in the cluster will listen on port 8080 and forward to port 80 in the container.
  • B. Only a single node in the cluster will listen on port 80 and forward to port 8080 in the container.
  • C. All nodes in the cluster will listen on port 80 and forward to port 8080 in the container.
  • D. All nodes in the cluster will listen on port 8080 and forward to port 80 in the container.

Answer: D


NEW QUESTION # 154
Does this command create a swarm service that only listens on port 53 using the UDP protocol?
Solution: 'docker service create --name dns-cache -p 53:53/udp dns-cache'

  • A. No
  • B. Yes

Answer: B

Explanation:
Explanation
This command creates a swarm service that only listens on port 53 using the UDP protocol, because the -p flag specifies the published port and target port separated by a colon (:) and followed by the protocol name (/udp).
According to the official documentation, this is an example of using the short version of the publish option to expose a port for a service.
References:
https://docs.docker.com/engine/reference/commandline/service_create/#publish-service-ports-externally-to-the-s


NEW QUESTION # 155
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