Restarting containers in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to restart a Docker container named 'webapp'.

Docker

docker container [1] webapp

Drag options to blanks, or click blank then click option'

Arestart

Bstart

Cstop

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'stop' only stops the container without starting it again.

Using 'start' only starts a stopped container but does not restart it if running.

The restart command stops and then starts the container again.

2fill in blank

medium

Complete the command to restart all running Docker containers.

Docker

docker ps -q | xargs docker [1]

Drag options to blanks, or click blank then click option'

Arm

Bstart

Crestart

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'stop' will only stop containers without restarting.

Using 'rm' will remove containers instead of restarting.

This command restarts all containers listed by docker ps -q, which shows container IDs.

3fill in blank

hard

Fix the error in the command to restart a container with ID 'abc123'.

Docker

docker container [1] abc123

Drag options to blanks, or click blank then click option'

Aremove

Bstart

Cstop

Drestart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' does not restart a running container.

Using 'stop' only stops the container without starting it again.

The correct command to restart a container is docker container restart.

4fill in blank

hard

Fill both blanks to restart all containers that are currently stopped.

Docker

docker ps -a -f status=[1] -q | xargs docker [2]

Drag options to blanks, or click blank then click option'

Aexited

Brestart

Crunning

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'restart' on stopped containers is valid but here we want to start only.

Filtering by 'running' will select running containers, not stopped ones.

The filter status=exited selects stopped containers, and start starts them again.

5fill in blank

hard

Fill all three blanks to restart containers with names starting with 'db'.

Docker

docker ps -a --filter name=[1] -q | xargs docker [2] [3]

Drag options to blanks, or click blank then click option'

A"^db"

Brestart

C--time=5

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' instead of 'restart' will not restart running containers.

Not using quotes around the regex filter can cause errors.

The filter name="^db" selects containers whose names start with 'db'. The restart command restarts them with a 5-second timeout.