Installing Mosquitto broker in IOT Protocols - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to install Mosquitto broker on Ubuntu.

IOT Protocols

sudo apt-get [1] mosquitto

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

Aupdate

Bremove

Cinstall

Dupgrade

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'update' instead of 'install' which only refreshes package lists.

Using 'remove' which deletes packages.

The install command is used with apt-get to install new packages like Mosquitto.

2fill in blank

medium

Complete the command to start the Mosquitto service.

IOT Protocols

sudo systemctl [1] mosquitto

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

Astart

Bstatus

Crestart

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'status' which only shows service status.

Using 'stop' which halts the service.

The start command tells the system to begin running the Mosquitto service.

3fill in blank

hard

Fix the error in the command to enable Mosquitto to start on boot.

IOT Protocols

sudo systemctl [1] mosquitto

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

Aenable

Bdisable

Cstart

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' which only starts the service now, not on boot.

Using 'disable' which prevents auto-start.

The enable command sets Mosquitto to start automatically when the system boots.

4fill in blank

hard

Fill both blanks to check Mosquitto service status and show recent logs.

IOT Protocols

sudo systemctl [1] mosquitto && journalctl -u mosquitto [2]

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

Astatus

B-xe

Cstart

D-b

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' instead of 'status' which changes service state.

Using '-b' which shows logs since last boot, not detailed errors.

status shows the current state of Mosquitto service, and -xe shows detailed recent logs with explanations.

5fill in blank

hard

Fill all three blanks to create a basic Mosquitto configuration file with default listener and persistence enabled.

IOT Protocols

listener [1]
persistence [2]
persistence_location [3]

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

A1883

Btrue

C/var/lib/mosquitto/

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using port other than 1883 for listener.

Setting persistence to false which disables saving data.

Wrong persistence location path.

The default MQTT port is 1883. Setting persistence to true enables saving data. The persistence_location is usually /var/lib/mosquitto/.