Docker Certified Associate Certification Training Course - Summary - Build, Manage, and Distribute Images

The video tutorial covers Docker image layers, accessing and pushing images to Docker Hub, managing Docker images, and various Docker image commands. It also explains Dockerfile directives, including FROM, RUN, and CMD. The tutorial provides a comprehensive overview of Docker image management and usage.

What is a characteristic of a Docker image?

• It can be tagged with the name 'scratch'.

• It has a readonly top layer.

• It has a writable base layer.

• It has a base readonly layer and a writable top layer.

Which of the following actions can be performed with Docker Hub?

• Delete Docker images permanently.

• Access and push Docker images.

• Rename Docker images.

• Encrypt Docker images.

What command is used to build a Docker image?

• docker image construct

• docker image build

• docker image create

• docker image compile

Which Dockerfile directive is used to specify the base image?

• CMD

• FROM

• COPY

• RUN

What is the purpose of the CMD directive in a Dockerfile?

• To copy files into the image.

• To specify the default command to run.

• To set environment variables.

• To expose network ports.