Docker for the Absolute Beginner - Hands-On - Demo - Advanced Docker Run Features

This video tutorial explores advanced Docker commands, focusing on running containers with specific tags, and using attach and detach modes. It demonstrates running Jenkins as a Docker container, highlighting the ease of setup without installing dependencies. The tutorial also covers port and volume mapping, ensuring data persistence across container restarts.

What is the default tag used by Docker if no specific tag is provided when running a container?

• Latest

• Current

• Stable

• Default

Which command is used to run a Docker container in detached mode?

• docker run -b

• docker run -f

• docker run -d

• docker run -a

What happens when you run a Docker container without any additional parameters?

• It runs in detached mode

• It runs in attached mode

• It runs in silent mode

• It runs in verbose mode

How can you reattach to a running Docker container that was started in detached mode?

• docker link

• docker join

• docker attach

• docker connect

What is Jenkins primarily used for?

• Database management

• Network monitoring

• Web development

• Continuous integration and delivery

Which command is used to find the internal IP of a Docker container?

• docker inspect

• docker info

• docker status

• docker ip

Why is port mapping necessary when running a web application in a Docker container?

• To save memory

• To increase security

• To allow external access

• To reduce latency

What is the purpose of mapping a volume in Docker?

• To reduce container size

• To persist data across container restarts

• To increase container speed

• To enhance security

Where does Jenkins store its data by default inside a Docker container?

• /var/jenkins_home

• /home/jenkins

• /opt/jenkins

• /usr/local/jenkins

What must be done to ensure Jenkins configuration data is not lost when a Docker container is removed?

• Use a larger container

• Map a volume to the host

• Increase container memory

• Run the container in verbose mode