[Dec 22, 2021] Free Docker Certified Associate DCA Official Cert Guide PDF Download
Docker DCA Official Cert Guide PDF
How to Prepare For Docker Certified Associate Exam
Preparation Guide for Docker Certified Associate Exam
Introduction
Docker is one of the open-source technology and very much demanding these days in IT, It had brought a revolution in the container technology, Docker has created a track for certification where an individual can appear and validate their skill set. This certification program will provide Docker Cloud Certified Associate a way to demonstrate their skills. The assessment is based on a rigorous exam using the industry-standard methodology to determine whether a candidate meets Dockerâs proficiency standards.
According to Docker, a DCA Certified Professional enables organizations will able to provision containers as and when they required using container images.
Certification is evidence of your skills, expertise in those areas in which you like to work. If the candidate wants to work on Docker Containerization technologies and prove his knowledge, certification is offered by Docker. This DCA Exam Certification helps a candidate to validates his skills in Docker Containerization technologies.
In this guide, we will cover the Docker Certified Associate Certification exam, Docker Certified Associate Certified professional salary and all aspects of the Docker Certified Associate Certification.
Docker Certified Associate Exam Certified Professional salary
The average salary of a Docker Certified Associate in
- India - 12,00,327 INR
- Europe - 61,547 EURO
- United State - 80,000 USD
- England - 62,532 POUND
How much Docker Certified Associate Exam Cost
The price of the Docker Certified Associate Exam Cost is 195 USD.
NEW QUESTION 93
Which of the following is true about overlay networks?
- A. Overlay networks are only created on the manager nodes.
- B. Overlay networks are created only on the manager node that you created the overlay networking on
- C. Overlay networks are first created on the manager nodes. Then they are created on the worker nodes once a task is scheduled on the specific worker node.
- D. Overlay networks are created on all cluster nodes when you create the overlay network.
Answer: D
Explanation:
Explanation
NEW QUESTION 94
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: node taints
- A. No
- B. Yes
Answer: A
NEW QUESTION 95
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution: Uninstall 'docker-ce' package before installing 'docker-ee' package.
- A. No
- B. Yes
Answer: B
NEW QUESTION 96
Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory?
Solution: cgroups
- A. No
- B. Yes
Answer: B
NEW QUESTION 97
You want to mount external storage to a particular filesystem path in a container in a Kubernetes pod. What is the correct set of objects to use for this?
- A. a volume in the pod specification, populated with a perslstentVolumeClaim bound to a perslstentVolume defined by a storageClass
- B. a perslstentVolume in the pod specification, populated with a persistentVolumeClaim which is bound to a volume defined by a storageClass
- C. a volume in the pod specification, populated with a storageClass which is bound to a provisioner defined by a perslstentVolume
- D. a storageClass In the pod's specification, populated with a volume which Is bound to a provisioner defined by a persistentVolume
Answer: D
NEW QUESTION 98
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 system events --filter splunk
- A. No
- B. Yes
Answer: A
NEW QUESTION 99
Is this a function of UCP?
Solution: scans images to detect any security vulnerability
- A. No
- B. Yes
Answer: A
NEW QUESTION 100
What is one way of directly transferring a Docker Image from one Docker host in another?
- A. There is no way of directly transferring Docker images between hosts. A Docker Registry must be used ad an intermediary.
- B. 'docker save' the image to save it as TAR file and copy it over to the target host. Then use 'docker load' to un-TAR the image back as a Docker image.
- C. 'docker commit' to save the image outside of the Docker filesystem. Then transfer the file over to the target host and 'docker start' to start the container again.
- D. 'docker push' the image to the IP address of the target host.
Answer: B
NEW QUESTION 101
An application image runs in multiple environments, and each environment uses different certificates and ports, what is the best practice to deploy the containers?
- A. Create a Dockerfile for each environment, specifying ports and ENV variables for certificates.
- B. Create a Dockerfile for each environment, specifying ports and Docker secrets for certificates.
- C. Create images that contain the specific configuration for every environment.
- D. Create a config file for each environment.
Answer: D
NEW QUESTION 102
What behavior is expected when a service is created with the following command:
'docker service create --publish 8000:80 nginx'
- A. All nodes in the cluster will listen on port 80 and forward to port 8080 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. Only a single node in the cluster will listen on port 8080 and forward to port 80 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 103
Which statement is true about DTR garbage collection?
- A. Garbage collection removes DTR images that are older than a configurable of days
- B. Garbage collection removes exited containers from cluster nodes.
- C. Garbage collection removes unreferenced image layers from DTR's backend storage.
- D. Garbage collection removes unused volumes from cluster nodes
Answer: C
NEW QUESTION 104
Will this command display a list of volumes for a specific container?
Solution: docker volume inspect nginx'
- A. No
- B. Yes
Answer: A
NEW QUESTION 105
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 106
You configure a local Docker engine to enforce content trust by setting the environment variable
DOCKER_CONTENT_TRUST=1.
If myorg/myimage: 1.0 is unsigned, does Docker block this command?
Solution: docker service create myorg/myimage:1.0
- A. No
- B. Yes
Answer: A
NEW QUESTION 107
When seven managers are in a swarm cluster how would they be distributed across three datacenters or availability zones?
- A. 5-1-1
- B. 4-2-1
- C. 3-3-1
- D. 3-2-2
Answer: D
NEW QUESTION 108
You want to create a container that is reachable from its host's network. Does this action accomplish this?
Solution: Use --link to access the container on the bridge network.
- A. No
- B. Yes
Answer: A
NEW QUESTION 109
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: The controller managing the pod is autoscaled back to delete the unhealthy pod and alleviate load.
- A. No
- B. Yes
Answer: B
NEW QUESTION 110
The following Docker Compose file is deployed as a stack:
Is this statement correct about this health check definition?
Solution: Health checks test for app health ten seconds apart. Three failed health checks transition the container into "unhealthy" status.
- A. No
- B. Yes
Answer: B
NEW QUESTION 111
What service mode is used to deploy a single task of a service to each node?
- A. universal
- B. replicated
- C. spread
- D. global
- E. distributed
Answer: D
NEW QUESTION 112
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. No
- B. Yes
Answer: A
NEW QUESTION 113
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