Networking & Protocols Flashcards
1
Q
Why is HTTP not suitable for IoT?
A
Too heavy, uses lots of power, one-to-one only
2
Q
What is MQTT used for?
A
Lightweight messaging between devices; publish/subscribe model
3
Q
What is 6LoWPAN?
A
IPv6 over Low Power Wireless Personal Area Networks
4
Q
What’s the benefit of mesh topology (ZigBee)?
A
More reliable; devices can reroute messages if one fails
5
Q
Which ZigBee devices sleep?
A
Endpoints (reduced function); routers stay awake
