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Docker Certified Associate (DCA) exam is a certification program that measures the skills and knowledge of an individual in containerization using Docker. It is an online, proctored exam that is designed to test the candidate's ability to work with Docker containers, images, networks, and storage. DCA exam is based on the latest version of Docker, ensuring that candidates are tested on the most up-to-date technology.

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The price of the Docker Certified Associate Exam Cost is 195 USD.

The DCA Certification Exam is a valuable credential for professionals who work with Docker technologies. Docker Certified Associate (DCA) Exam certification validates an individual's knowledge and skills related to Docker and can lead to better job opportunities and higher salaries. Additionally, the DCA certification is recognized by many organizations and can help professionals stand out in a crowded market.

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Docker Certified Associate (DCA) Exam Sample Questions (Q127-Q132):

NEW QUESTION # 127
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. If the test fails, the container will be restarted three times before it gets rescheduled.

A. Yes
B. No

Answer: B

Explanation:
= I cannot give you a comprehensive explanation, but I can tell you that the statement is not entirely correct.
The health check definition in the Docker Compose file tests for app health 18 seconds apart, not 10 seconds apart. Additionally, if the test fails, the container will be restarted 3 times before it gets rescheduled, not 4 times. References:
* Docker Associate Resources and guides: 1 and 2
* Docker Compose health check documentation: 3
* Docker health check documentation: 4
I hope this helps you prepare for your DCA exam. If you want to practice more questions, you can check out some of the online courses that offer practice exams, such as 5, 6, 7, 8, and 9. Good luck!

NEW QUESTION # 128
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. Yes
B. No

Answer: B

Explanation:
Explanation
This command does not mount the host's /data directory to the ubuntu container in read-only mode. The -v or
--volume flag mounts a host directory or a named volume to a container. The syntax for mounting a host directory is -v <host-path>:<container-path>[:<options>]. The options can be ro for read-only mode, rw for read-write mode, z or Z for SELinux labels, etc. In this command, -mode readonly is not a valid option and will cause an error. To mount the host's /data directory to the ubuntu container in read-only mode, you need to use -v /data:/mydata:ro instead. References: https://docs.docker.com/storage/bind-mounts/,
https://docs.docker.com/engine/reference/run/#volume-shared-filesystems

NEW QUESTION # 129
You want to create a container that is reachable from its host's network.
Does this action accomplish this?
Solution. Use network connect to access the container on the bridge network.

A. No
B. Yes

Answer: B

Explanation:
Explanation
Using network connect to access the container on the bridge network does create a container that is reachable from its host's network. The network connect command connects a running container to another network. By default, Docker creates and connects containers to a bridge network, which is an internal network that isolates containers from each other and from the host. However, you can use network connect to connect a container to another network, such as the host network, which allows the container to share the host's network stack and be reachable from the host's network. References:
https://docs.docker.com/engine/reference/commandline/network_connect/,
https://docs.docker.com/network/bridge/, https://docs.docker.com/network/host/

NEW QUESTION # 130
The Kubernetes yaml shown below describes a clusterIP service.

Is this a correct statement about how this service routes requests?
Solution: Traffic sent to the IP of this service on port 8080 will be routed to port 80 in a random pod with the label aPP: nginx.

A. No
B. Yes

Answer: B

NEW QUESTION # 131
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution: Manually download the 'docker-ee' package

A. Yes
B. No

Answer: B

Explanation:
Explanation
= Manually downloading the 'docker-ee' package will not upgrade Docker Engine CE to Docker Engine EE.
Docker Engine CE and Docker Engine EE are two different products with different installation methods and features. Docker Engine CE is a free and open source containerization platform, while Docker Engine EE is a subscription-based enterprise-grade platform that offers additional features such as security scanning, certified plugins, and support12. To upgrade from Docker Engine CE to Docker Engine EE, you need to uninstall Docker Engine CE and install Docker Engine EE following the official documentation3. References:
* What is the exact difference between Docker EE (Enterprise Edition), Docker CE (Community Edition)
* and Docker (Custom Support) - Stack Overflow
* Difference between Docker Community Edition (CE) vs Docker Enterprise Edition (EE) in 2020
* Install Docker Engine | Docker Docs

NEW QUESTION # 132
......

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