Latest Verified & Correct Docker DCA Questions & Answers Daily Updated [Q95-Q115]

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Latest Verified & Correct Docker DCA Questions & Answers Daily Updated

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Docker Certified Associate (DCA) exam is a certification program that validates a professional’s knowledge and skills in Docker technologies. Docker is an open-source platform that allows developers to build, ship, and run applications in a containerized environment. The DCA exam is designed for individuals who are looking to establish themselves as experts in Docker technologies and want to validate their skills and knowledge in this field.

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 Docker’s 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.

Q95. Are these conditions sufficient for Kubernetes to dynamically provision a persistentVolume, assuming there are no limitations on the amount and type of available external storage?
Solution: A volume is defined in a pod specification with the key persistentVolume: default.

Yes

Q96. 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.

Yes

Q97. Two pods bear the same label, app: dev.
Will a label selector matching app: dev match both of these pods?

Yes, as long as all the containers in those pods are passing their livenessProbes and readinessProbes.

Yes, if both pods were pre-existing when the label selector was declared.

Yes, if the pods are in the same Kubernetes namespace as the object bearing the label selector

Yes, if the pods are in the same Kubernetes namespace as the object bearing the label selector and both pods were preexisting when the label selector was declared.

Q98. In Kubernetes, to mount external storage to a filesystem path in a container within a pod, you would use a volume in the pod specification. This volume is populated with a persistentVolumeClaim that is bound to an existing persistentVolume. The persistentVolume is defined and managed by the storageClass which provides dynamic or static provisioning of the volume and determines what type of storage will be provided1. Reference:
* Dynamic Volume Provisioning | Kubernetes
Is this a supported user authentication method for Universal Control Plane?
Solution: Docker ID

Yes

Q99. 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. environment variables

Yes

Q100. Will this command ensure that overlay traffic between service tasks is encrypted?
Solution: docker network create -d overlay -o encrypted=true <network-name>

Yes

Q101. Is this the purpose of Docker Content Trust?
Solution: Enable mutual TLS between the Docker client and server.

Yes

Q102. 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: Create one pod and add all the resources needed for each application

Yes

Q103. You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this?
Solution: Mount the configuration file directly into the appropriate pod and container using the
.spec.containers.configMounts key.

Yes

Q104. You want to create a container that is reachable from its host’s network.
Does this action accomplish this?
Solution. Use either EXPOSE or -publish to access the container on the bridge network.

Yes

Q105. 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.

Yes

Q106. 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.

Yes

Q107. 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. Create a collection for for each application.

Yes

Q108. Is this a type of Linux kernel namespace that provides container isolation?
Solution. Process ID

Yes

Q109. 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

Yes

Q110. You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this?
Solution: Turn the configuration file into a configMap object, use it to populate a volume associated with the pod, and mount that file from the volume to the appropriate container and path.

Yes

Q111. 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.

Yes

Q112. A persistentVolumeClaim (PVC) is created with the specification storageClass: “”, and size requirements that cannot be satisfied by any existing persistentVolume.
Is this an action Kubernetes takes in this situation?
Solution: The PVC remains unbound until a persistentVolume that matches all requirements of the PVC becomes available.

Yes

Q113. 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. Create a collection for for each application.

Yes

Q114. A user’s attempts to set the system time from inside a Docker container are unsuccessful.
Could this be blocking this operation?
Solution.SELinux

Yes

Q115. Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution: user

Yes