Docker Certified Associate Certification Training Course - Docker Services

The video tutorial provides a comprehensive guide on managing Docker services. It covers the creation of services, including specifying container images and commands, and setting options like overlay networks and resource limits. The tutorial explains how to list, scale, and update services, including managing mounts and performing rolling updates. It also demonstrates how to rollback services to previous configurations. Key commands such as 'docker service create', 'docker service update', and 'docker service rollback' are discussed in detail, providing a practical understanding of Docker's service management capabilities.

What is a Docker service typically composed of?

• A single container

• A database only

• Multiple microservices

• A single application

Which command is used to create a Docker service?

• docker service deploy

• docker service init

• docker service create

• docker service start

What does the 'docker service scale' command do?

• Updates service parameters

• Lists all services

• Deletes a service

• Scales the number of replicas

Which flag is used to avoid recreating tasks during a service update?

• --update-parallelism

• --force

• --no-recreate

• --skip-tasks

What is the purpose of the 'docker service update' command?

• To create a new service

• To list all services

• To delete a service

• To update service parameters

How can you revert a Docker service to its previous state?

• docker service revert

• docker service undo

• docker service rollback

• docker service reset

Which command is used to add or remove mounts in a Docker service?

• docker service update

• docker service attach

• docker service modify

• docker service mount