Exam style questions across every DCA domain
Last Update 3 days ago
Total Questions : 191
Start with our free DCA practice questions, carefully crafted to mirror the domains, phrasing, and difficulty of the real Docker Certified Associate exam. Each DCA exam question comes with a detailed rationale that explains not just which answer is correct but why the others fall short. That's how concepts stick. Use the free set to benchmark yourself: identify your Docker weak domains, see where you're losing marks, and build a focused study plan in minutes.
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 five seconds apart. If the test fails, the container will be restarted three times before it gets rescheduled.
Is this an advantage of multi-stage builds?
Solution.better logical separation of Dockerfile instructions for increased readability
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 unhealthy container is restarted.
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.
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.
In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest’, from being overwritten by another user with push access to the repository?
Solution: Use the DTR web Ul to make all tags in the repository immutable.
Will this command ensure that overlay traffic between service tasks is encrypted?
Solution: docker network create -d overlay -o encrypted=true
Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution.pid
Is this a type of Linux kernel namespace that provides container isolation?
Solution: Authentication
Will This command list all nodes in a swarm cluster from the command line?
Solution. ‘docker swarm nodes'
