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Docker Certified Associate (DCA) Certification Exam is a professional certification that validates an individual's knowledge and skills in Docker technologies and practices. Docker Certified Associate (DCA) Exam certification is developed and maintained by Docker, Inc. and is designed for IT professionals, developers, and system administrators who want to demonstrate their expertise in Docker technologies. The DCA Certification Exam covers a broad range of Docker topics, including containerization, orchestration, networking, security, and storage. Passing the DCA exam confirms that an individual has a strong understanding of Docker technologies and can effectively use Docker tools and practices in real-world scenarios.

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Docker has become one of the most popular technologies for containerization and application development. As the popularity of Docker continues to grow, so does the need for skilled professionals who can manage and deploy Docker containers. The Docker Certified Associate (DCA) exam is designed to validate the skills and expertise of professionals who work with Docker. DCA Exam is intended to test the candidate's knowledge of Docker concepts, Docker architecture, and Docker installation and configuration.

Docker Certified Associate (DCA) Exam Sample Questions (Q186-Q191):

NEW QUESTION # 186
Is this a function of UCP?
Solution: scans images to detect any security vulnerability

A. Yes
B. No

Answer: A

Explanation:
= Scanning images to detect any security vulnerability is a function of UCP. UCP integrates with Docker Trusted Registry (DTR), which is a secure and scalable image storage solution1. DTR has a built-in image scanning feature that checks every layer of every image for known vulnerabilities and displays the results in the UCP web UI2. This helps users to identify and fix any security issues before deploying their applications. UCP also allows users to enforce security policies and only allow running applications that use images that are scanned and free of vulnerabilities3. References:
* Docker Trusted Registry | Docker Docs
* Scan images for vulnerabilities | Docker Docs
* Manage images | Docker Docs

NEW QUESTION # 187
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:
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 # 188
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: A

Explanation:
Explanation
= The strategy of creating a PersistentVolume with hostPath and a PersistentVolumeClaim to mount the /data directory on your laptop into a container will not work, because hostPath volumes are only suitable for single node testing or development. They are not portable across nodes and do not support dynamic provisioning. If you want to mount a local directory from your laptop into a Kubernetes pod, you need to use a different type of volume, such as NFS, hostPath CSI, or minikube. Alternatively, you can copy the files from your laptop to the container using kubectl cp command. References:
* Volumes | Kubernetes
* Configure a Pod to Use a PersistentVolume for Storage | Kubernetes
* Mount a local directory to kubernetes pod - Stack Overflow
* Kubernetes share a directory from your local system to kubernetes container - Stack Overflow
* How to Mount a Host Directory Into a Docker Container

NEW QUESTION # 189
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 events deployment api

A. No
B. Yes

Answer: A

NEW QUESTION # 190
Is this a supported user authentication method for Universal Control Plane?
Solution. LDAP

A. Yes
B. No

Answer: A

Explanation:
= LDAP is a supported user authentication method for Universal Control Plane (UCP). UCP has its own built-in authentication mechanism and integrates with LDAP and Active Directory. It also supports Role Based Access Control (RBAC) and Docker Content Trust. UCP allows you to configure LDAP as an authentication method and connect it to your LDAP server. You need to provide the LDAP URL, the base DN, the bind DN and password, and the user and group search settings12. References:
* SAML | Docker Docs
* Universal Control Plane overview | dockerlabs

NEW QUESTION # 191
......

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