[Oct-2021] Updated Docker Certified Associate DCA Exam Questions BUNDLE PACK
Master The Docker Content DCA EXAM DUMPS WITH GUARANTEED SUCCESS!
NEW QUESTION 52
You add a new user to the engineering organization in DTR.
Will this action grant them read/write access to the engineering/api repository?
Solution: Add them to a team in the engineering organization that has read/write access to the engineering/api repository.
- A. No
- B. Yes
Answer: A
NEW QUESTION 53
Which of the following is required to install Docker EE from a package repository?
- A. License key obtained from Docker Hub
- B. License key obtained from Docker Store
- C. Repository URL obtained from Docker Hub
- D. Repository URL obtained from Docker Store
Answer: D
NEW QUESTION 54
Is this the purpose of Docker Content Trust?
Solution: Enable mutual TLS between the Docker client and server.
- A. No
- B. Yes
Answer: A
NEW QUESTION 55
A server is running low on disk space. What command can be used to check the disk usage of images,
containers, and volumes for Docker engine?
- A. 'docker system free'
- B. 'docker system prune'
- C. 'docker system ps'
- D. 'docker system df'
Answer: D
NEW QUESTION 56
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: Create a PersistentVolume with storageciass: "" and hostPath: /data, and a persistentVolumeClaim requesting this PV. Then use that PVC to populate a volume in a pod
- A. No
- B. Yes
Answer: B
NEW QUESTION 57
Which one of the following commands will show a list of volumes for a specific container?
- A. 'docker volume inspect nginx'
- B. 'docker volume logs nginx --containers'
- C. 'docker container inspect nginx'
- D. 'docker container logs nginx --volumes'
Answer: C
NEW QUESTION 58
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. No
- B. Yes
Answer: A
NEW QUESTION 59
What is the docker command to setup a swarm?
- A. docker create swarm
- B. docker swarm init
- C. docker swarm create
- D. docker init swarm
Answer: B
Explanation:
https://docs.docker.com/engine/reference/commandline/swarm/
NEW QUESTION 60
In the context of a swarm mode cluster, does this describe a node?
Solution: an instance of the Docker engine participating in the swarm
- A. No
- B. Yes
Answer: B
NEW QUESTION 61
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 inspect http'
- B. 'docker service inspect http'
- C. 'docker service ps http'
- D. 'docker ps http'
Answer: B
NEW QUESTION 62
In Docker Trusted Registry, how would a user prevent an image, for example 'nginx:latest' from being
overwritten by another user with push access to the repository?
- A. Remove push access from all other users.
- B. Use the DTR web UI to make the tag immutable.
- C. Tag the image with 'nginx:immutable'
- D. Keep a backup copy of the image on another repository.
Answer: B
NEW QUESTION 63
Is this the purpose of Docker Content Trust?
Solution: Verify and encrypt Docker registry TLS.
- A. No
- B. Yes
Answer: B
NEW QUESTION 64
A Kubernetes node is allocated a /26 CIDR block (64 unique IPs) for its address space.
If every pod on this node has exactly two containers in it, how many pods can this address space support on this node?
- A. 0
- B. 64 for every service routing to pods on this node
- C. 32 In every Kubernetes namespace
- D. 1
Answer: B
NEW QUESTION 65
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: label contraints
- A. No
- B. Yes
Answer: A
NEW QUESTION 66
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.
- A. No
- B. Yes
Answer: A
NEW QUESTION 67
Your organization has a centralized logging solution, such as Splunk.
Will this configure a Docker container to export container logs to the logging solution?
Solution: docker logs <container-id>
- A. No
- B. Yes
Answer: A
NEW QUESTION 68
When seven managers are in a swarm cluster how would they be distributed across three datacenters or availability zones?
- A. 3-3-1
- B. 3-2-2
- C. 4-2-1
- D. 5-1-1
Answer: B
NEW QUESTION 69
Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution: mnt
- A. No
- B. Yes
Answer: A
NEW QUESTION 70
Which of the following commands will ensure that overlay traffic between service tasks is encrypted?
- A. docker service create --network <network-name> --secure <service-name>
- B. docker network create -d overlay --secure <network-name>
- C. docker network create -d overlay -o encrypted=true <network-name>
- D. docker service create --network <network-name> --encrypted <service-name>
Answer: C
NEW QUESTION 71
Is this an advantage of multi-stage builds?
Solution: better caching when building Docker images
- A. No
- B. Yes
Answer: A
NEW QUESTION 72
Which of the following commands will create a swarm service which only listens on port 53 using the UDP protocol?
- A. docker service create --name dns-cache -p 53:53 --udp dns-cache
- B. docker service create --name dns-cache -p 53:53/udp dns-cache
- C. docker service create --name dns-cache -p 53:53 --service udp dns-cache
- D. docker service create --name dns-cache -p 53:53 ..constraint
networking.protocol.udp=true dns-cache
Answer: B
NEW QUESTION 73
Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution: net
- A. No
- B. Yes
Answer: A
NEW QUESTION 74
The output of which command can be used to find the architecture and operating system an image is compatible with?
- A. docker image inspect --format {{.Architecture}} {{.OS}} ' <image-id>
- B. docker image ls <image-id>
- C. docker image info <image-id>
- D. docker image inspect --filter {{.Architecture}} {{.OS}} ' <image-id>
Answer: A
NEW QUESTION 75
Will this command display a list of volumes for a specific container?
Solution: docker volume logs nginx --containers'
- A. No
- B. Yes
Answer: A
NEW QUESTION 76
If installing Docker using devicemapper for storage with the Intent to run production workloads, how should devicemapper be configured
- A. loop-lvm
- B. direct-lvm
- C. overlay-lvm
- D. aufs-lvm
Answer: B
NEW QUESTION 77
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