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The Docker Certified Associate (DCA) exam is an essential certification for IT professionals who want to validate their skills and knowledge in working with Docker containers. The exam covers a wide range of topics related to Docker technology and requires you to have a good understanding of its components. With proper preparation and training, passing the DCA exam can help you advance your career in the IT industry.
The Docker Certified Associate (DCA) certification exam is a challenging and rewarding certification that tests the knowledge and skills of professionals who work with Docker. The certification is recognized by leading technology companies and organizations, and provides a valuable credential for IT professionals looking to advance their careers in cloud computing, DevOps, and containerization.
NEW QUESTION # 60
What is the difference between a resource limit and a resource reservation when scheduling services?
- A. A resource limit is hard limit for your service, while a reservation is used to find a host with adequate resources for scheduling. Correct
- B. A resource limit is used to find a host with adequate resources for scheduling a hard limit for your service, while a reservation is hard limit for your service.
- C. A resource limit is a soft limit for your service, while a reservation is hard limit and the docker engine will do its best to keep your service at the limit.
- D. A resource limit and a resource reservation can be used interchangeably.
Answer: D
NEW QUESTION # 61
What is the difference between a resource limit and a resource reservation when scheduling services?
- A. A resource limit is used to find a host with adequate resources for scheduling a hard limit for your service, while a reservation is hard limit for your service.
- B. A resource limit is hard limit for your service, while a reservation is used to find a host with adequate
resources for scheduling. Correct - C. A resource limit is a soft limit for your service, while a reservation is hard limit and the docker engine will do its best to keep your service at the limit.
- D. A resource limit and a resource reservation can be used interchangeably.
Answer: D
NEW QUESTION # 62
During development of an application meant to be orchestrated by Kubernetes, you want to mount the /data directory on your laptop into a container.
Will this strategy successfully accomplish this?
Solution: Add a volume to the pod that sets hostPath.path: /data, and then mount this volume into the pod's containers as desired.
- A. Yes
- B. No
Answer: B
NEW QUESTION # 63
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution: Manually download the 'docker-ee' package
- A. Yes
- B. No
Answer: A
NEW QUESTION # 64
Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: role-based access control to clustered resources
- A. Yes
- B. No
Answer: B
NEW QUESTION # 65
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: B
NEW QUESTION # 66
What is the difference between the ADD and COPY dockerfile instructions? (choosen 2)
- A. ADD supports regular expression handling while COPY does not.
- B. ADD support remote URL handling while COPY does not.
- C. ADD supports compression format handling while COPY does not.
- D. COPY supports compression format handling while ADD does not.
- E. COPY supports regular expression handling while ADD does not.
Answer: B
NEW QUESTION # 67
Will this configuration achieve fault tolerance for managers in a swarm?
Solution: an odd number of manager nodes, totaling more than two
- A. Yes
- B. No
Answer: A
NEW QUESTION # 68
A container named "analytics" that stores results in a volume called "data" was created.
docker run -d --name=analytics -v data:/data app1
How are the results accessed in "data" with another container called "app2"?
- A. docker run -d --name=reports --mount=app1 app2
- B. docker run -d --name=reports --volumes-from=analytics app2
- C. docker run -d --name=reports --volume=data app2
- D. docker run -d --name=reports --volume=app1 app2
Answer: B
NEW QUESTION # 69
Will this command display a list of volumes for a specific container?
Solution: docker volume logs nginx --containers'
- A. Yes
- B. No
Answer: B
NEW QUESTION # 70
Which flag for a service would allow a container to consume more than 2 GB of memory only when there is no memory contention but would also prevent a container from consuming more than 4GB of memory, in any case?
- A. --memory-swap 4GB --limit-memory 2GB
- B. --limit-memory 4GB --reserve-memory 2GB
- C. --limit-memory 2GB --reserve-memory 4GB
- D. --memory-swap 2GB --limit-memory 4GB
Answer: D
NEW QUESTION # 71
You are troubleshooting a Kubernetes deployment called api, and want to see the events table for this object. Does this command display it?
Solution: kubectl logs deployment api
- A. Yes
- B. No
Answer: B
NEW QUESTION # 72
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 # 73
You want to create a container that is reachable from its host's network. Does this action accomplish this?
Solution: Use network attach to access the containers on the bridge network
- A. Yes
- B. No
Answer: B
NEW QUESTION # 74
What is the docker command to setup a swarm?
- A. docker init swarm
- B. docker swarm create
- C. docker create swarm
- D. docker swarm init
Answer: D
Explanation:
https://docs.docker.com/engine/reference/commandline/swarm/
NEW QUESTION # 75
You are troubleshooting a Kubernetes deployment called api, and want to see the events table for this object. Does this command display it?
Solution: kubectl describe deployment api
- A. Yes
- B. No
Answer: A
NEW QUESTION # 76
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Detailed New DCA Exam Questions for Concept Clearance: https://skillsoft.braindumpquiz.com/DCA-exam-material.html