Why monitoring containers matters in Docker - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the command to list all running Docker containers.

Docker

docker [1]

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

Arun

Bps

Cimages

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'docker images' lists images, not containers.

Using 'docker run' starts a container, not lists them.

The docker ps command shows all running containers.

2fill in blank

medium

Complete the command to check the logs of a container named 'webapp'.

Docker

docker logs [1]

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

Awebapp

Bstart

Cstop

Dps

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' or 'stop' instead of the container name.

Using 'ps' which lists containers, not logs.

The docker logs webapp command shows the logs of the container named 'webapp'.

3fill in blank

hard

Fix the error in the command to monitor container stats continuously.

Docker

docker [1]

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

Aimages

Brm

Cstats

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'stop' or 'rm' which stop or remove containers.

Using 'images' which lists images, not stats.

The docker stats command shows real-time resource usage of containers.

4fill in blank

hard

Fill both blanks to create a command that filters running containers by name 'db'.

Docker

docker ps --filter [1]=[2]

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

Aname

Bstatus

Cdb

Dimage

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'status' or 'image' as filter keys incorrectly.

Using wrong filter values.

The docker ps --filter name=db command lists containers with 'db' in their name.

5fill in blank

hard

Fill all three blanks to create a command that shows logs of container 'api' with timestamps and follows output.

Docker

docker logs [1] [2] [3]

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

A--timestamps

Bapi

C--follow

D--tail

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up option order or missing container name.

Using '--tail' without a number.

The command docker logs api --timestamps --follow shows live logs with timestamps for the 'api' container.