Docker Certified Associate Certification Training Course - Demo - Docker Build

This video tutorial demonstrates how to build a custom Docker image using a Dockerfile. It covers the creation of a Dockerfile with specific directives, such as 'FROM Ubuntu', 'MAINTAINER', and 'RUN'. The tutorial guides viewers through the process of building the image using the Docker build command and verifying the creation of the new image by checking its ID. The video concludes with a successful demonstration of the image creation process.

What is the base image used in the Dockerfile discussed in the video?

• Debian

• CentOS

• Ubuntu

• Alpine

Which directive in a Dockerfile specifies the person responsible for maintaining the image?

• LABEL

• MAINTAINER

• CMD

• RUN

What additional command was added to the Dockerfile before building the image?

• curl a URL

• apt-get install

• echo a statement

• ping a server

Which command is used to initiate the Docker build process?

• docker create

• docker run

• docker start

• docker build

How can you verify the creation time of a newly built Docker image?

• By inspecting the image history

• By comparing the image ID with the creation time

• By checking the image size

• By running the image