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Docker Certified Associate (DCA) Exam
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Is this statement correct? Solution: A Dockerfile provides instructions for building a Docker image
The following health check exists in a Dockerfile:'HEALTCHECKCMD curl --fail http://localhost/health || exit 1'Which of the following describes its purpose?
Will this action upgrade Docker Engine CE to Docker Engine EE? Solution: Uninstall 'docker-ce' package before installing 'docker-ee' package.
An application image runs in multiple environments, and each environment uses different certificates and ports, what is the best practice to deploy the containers?
You created a new service named 'http' and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service? Solution: 'docker service ps http'
You created a new service named 'http' and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service? Solution: 'docker inspect http'
You have deployed a service to swarm. Which command uses the Docker CLI to set the number of tasks of the services to 5? (choose 2)
Will a DTR security scan detect this? Solution: licenses for known third party binary components
What is the purpose of multi-stage builds?
Which of the following are types of namespaces used by Docker to provide isolation? (Choose 2.)