Debugging network issues in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to list all Docker networks.

Docker

docker network [1]

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

Als

Bcreate

Crm

Dinspect

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'create' instead of 'ls' will try to make a new network.

'rm' deletes a network, not lists it.

The docker network ls command lists all Docker networks on your system.

2fill in blank

medium

Complete the command to inspect details of a Docker network named 'my_net'.

Docker

docker network [1] my_net

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

Arm

Binspect

Cls

Dconnect

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'rm' deletes the network.

'ls' lists networks but doesn't show details.

The docker network inspect my_net command shows detailed information about the network 'my_net'.

3fill in blank

hard

Fix the error in the command to ping a container named 'webapp' from the 'client' container.

Docker

docker exec [1] client ping webapp

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

A-d

B-p

C-rm

D-it

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-d' runs in detached mode, not interactive.

'-rm' is not a valid docker exec option.

The docker exec -it client ping webapp command uses the -it option to allow interactive terminal access to run the ping command inside the 'client' container.

4fill in blank

hard

Fill both blanks to create a Docker network named 'test_net' with a specific driver.

Docker

docker network [1] test_net --driver [2]

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

Acreate

Brm

Cbridge

Doverlay

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'rm' deletes networks, not creates.

Choosing 'overlay' is for multi-host networks, not local.

Use docker network create to make a new network, and bridge is a common driver for local networks.

5fill in blank

hard

Fill all three blanks to disconnect a container named 'db' from a network named 'backend_net'.

Docker

docker network [1] [2] [3]

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

Adisconnect

Bdb

Cbackend_net

Dconnect

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'connect' adds a container to a network, not removes.

Swapping container and network names causes errors.

The command docker network disconnect backend_net db removes the container 'db' from the 'backend_net' network.