INTERACTIVE DCA QUESTIONS | PASS DCA GUARANTEED

Interactive DCA Questions | Pass DCA Guaranteed

Interactive DCA Questions | Pass DCA Guaranteed

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Docker Certified Associate (DCA) certification is intended for developers, system administrators, and IT professionals who work with Docker. Docker Certified Associate (DCA) Exam certification is an excellent way to demonstrate to potential employers that you have the skills and knowledge required to work with Docker. Docker Certified Associate (DCA) Exam certification is also a great way to enhance your career prospects and increase your earning potential.

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The Docker Certified Associate (DCA) Exam (DCA) certification is the way to go in the modern Docker era. Success in the DCA exam of this certification plays an essential role in an individual's future growth. Nowadays, almost every tech aspirant is taking the test to get Docker certification and find well-paying jobs or promotions. But the main issue that most of the candidates face is not finding updated Docker DCA Practice Questions to prepare successfully for the Docker DCA certification exam in a short time.

The DCA certification exam is a challenging exam that requires candidates to have a deep understanding of Docker technology and its ecosystem. DCA exam consists of 55 multiple-choice questions that must be completed within 90 minutes. To pass the exam, candidates must score at least 65%. DCA Exam is administered online, allowing candidates to take the exam from the comfort of their own home or office. After passing the exam, candidates receive a digital certificate and a badge that they can use to showcase their skills and knowledge in Docker technology.

Docker Certified Associate (DCA) Exam Sample Questions (Q108-Q113):

NEW QUESTION # 108
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. Set containers. Mounts. hostBinding: /data in the container's specification.

  • A. No
  • B. Yes

Answer: A

Explanation:
The strategy will not successfully accomplish mounting the /data directory on your laptop into a container.
The containers. Mounts. hostBinding: /data is not a valid syntax for specifying a bind mount in a Kubernetes container specification. According to the Kubernetes documentation), the correct way to mount a host directory into a container is to use a hostPath volume, which takes a path parameter that specifies the location on the host. For example, to mount the /data directory on your laptop into a container at /var/data, you can use the following YAML snippet:
spec:
containers:
- name: my-container
image: my-image
volumeMounts:
- name: data-volume
mountPath: /var/data
volumes:
- name: data-volume
hostPath:
path: /data
References: Volumes), Use bind mounts)


NEW QUESTION # 109
Can this set of commands identify the published port(s) for a container?
Solution. 'docker container inspect", docker port'

  • A. No
  • B. Yes

Answer: A

Explanation:
Explanation
The set of commands docker container inspect and docker port cannot identify the published port(s) for a container. The docker container inspect command returns low-level information on a container, such as its ID, name, state, network settings, mounts, etc1. However, it does not show the port mappings between the container and thehost2. The docker port command lists the port mappings or a specific mapping for a container, but it requires the container name or ID as an argument3. Therefore, to identify the published port(s) for a container, you need to use both commands together, such as docker port $(docker container inspect -f
'{{.Name}}' CONTAINER)4. References:
* docker container inspect | Docker Docs
* How to inspect a running Docker container - Stack Overflow
* docker port | Docker Docs
* List port for Docker container using command line - Stack Overflow


NEW QUESTION # 110
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 any pod with the label app: nginx on port 8080 will be forwarded to port 80 in that pod.

  • A. No
  • B. Yes

Answer: A

Explanation:
Explanation
The statement is incorrect because it does not mention the service name or the clusterIP address. Traffic sent to the IP of any pod with the label app: nginx on port 8080 will not be forwarded to port 80 in that pod, unless the traffic is coming from another pod within the same cluster that knows the pod IP. To access the service from outside the cluster, the traffic must be sent to the clusterIP address of the service, which is assigned by Kubernetes, and the port 8080 of the service, which is defined in the yaml file. The service will then forward the traffic to one of the selected pods on port 80.
To summarize, the correct statement should be:
Traffic sent to the clusterIP address of the service dca on port 8080 will be forwarded to port 80 in one of the pods with the label app: nginx.


NEW QUESTION # 111
Does this command display all the pods in the cluster that are labeled as env; development'?
Solution. 'kubectl gel pods --all-namespaces -I 'env in (development)''

  • A. No
  • B. Yes

Answer: A

Explanation:
The command kubectl gel pods --all-namespaces -l 'env in (development)' does not display all the pods in the cluster that are labeled as env: development. The command has two typos that prevent it from working correctly. First, the verb should be get instead of gel. Second, the label selector flag should be -l instead of -I1. The correct command should be kubectl get pods --all-namespaces -l 'env in (development)', which will list all the pods across all namespaces that have a label env with a value development2. Reference:
kubectl Cheat Sheet | Kubernetes
Labels and Selectors | Kubernetes


NEW QUESTION # 112
An application image runs in multiple environments, with each environment using different certificates and ports.
Is this a way to provision configuration to containers at runtime?
Solution: Provision a Docker config object for each environment.

  • A. Yes
  • B. No

Answer: A

Explanation:
= Provisioning a Docker config object for each environment is a way to provision configuration to containers at runtime. Docker configs allow services to adapt their behaviour without the need to rebuild a Docker image.
Services can only access configs when explicitly granted by a configs attribute within the services top-level element. As with volumes, configs are mounted as files into a service's container's filesystem1. Docker configs are supported on both Linux and Windows services2. References: Docker Documentation, Configs top-level element


NEW QUESTION # 113
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