MQTT broker setup (Mosquitto) in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to install Mosquitto on Raspberry Pi.

Raspberry Pi

sudo apt-get [1] mosquitto

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

Aremove

Binstall

Cupdate

Dupgrade

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'remove' instead of 'install' will uninstall packages.

Using 'update' only refreshes package lists, does not install.

The install command installs the Mosquitto package on your Raspberry Pi.

2fill in blank

medium

Complete the command to start the Mosquitto service.

Raspberry Pi

sudo systemctl [1] mosquitto

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

Astop

Brestart

Cdisable

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'stop' will turn off the service.

Using 'disable' prevents the service from starting automatically.

The start command launches the Mosquitto service so it runs in the background.

3fill in blank

hard

Fix the error in the command to check Mosquitto service status.

Raspberry Pi

sudo systemctl [1] mosquitto

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

Astate

Binfo

Cstatus

Dstat

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'stat' or 'state' are not valid systemctl commands.

Using 'info' will cause an error.

The correct command to check service status is status.

4fill in blank

hard

Fill both blanks to create a Mosquitto configuration file that allows anonymous connections and sets the listener port to 1883.

Raspberry Pi

allow_anonymous [1]
listener [2]

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

Atrue

Bfalse

C1883

D8883

Attempts:

3 left

💡 Hint

Common Mistakes

Setting allow_anonymous to false blocks anonymous clients.

Using port 8883 is for secure MQTT, not default.

Setting allow_anonymous true allows clients to connect without username/password.
Setting listener 1883 sets the default MQTT port.

5fill in blank

hard

Fill all three blanks to write a command that restarts Mosquitto and checks its status.

Raspberry Pi

sudo systemctl [1] mosquitto && sudo systemctl [2] mosquitto && sudo systemctl [3] mosquitto

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

Astop

Bstart

Cstatus

Drestart

Attempts:

3 left

💡 Hint

Common Mistakes

Using stop instead of restart will turn off the service.

Skipping status means you won't see if it started correctly.

The command restarts Mosquitto and then checks its status.