You try to start Mosquitto with sudo systemctl start mosquitto but get an error saying the service is not found. What is the likely cause?

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Raspberry Pi - MQTT for IoT

You try to start Mosquitto with sudo systemctl start mosquitto but get an error saying the service is not found. What is the likely cause?

AMosquitto is not installed or service not enabled

BYou need to run the command without sudo

CThe Raspberry Pi is out of storage space

DThe MQTT topic name is incorrect

Step-by-Step Solution

Solution:

Step 1: Analyze the error message
The error 'service not found' means the system does not recognize the mosquitto service, usually because it is not installed or the service is not enabled.
Step 2: Evaluate other options
Running without sudo won't help as service commands require sudo. Storage space or topic name do not affect service recognition.
Final Answer:
Mosquitto is not installed or service not enabled -> Option A
Quick Check:
Service error = missing install or enable [OK]

Quick Trick: Check if Mosquitto is installed and service enabled [OK]

Common Mistakes:

MISTAKES

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