IoT_Assignment 2

Based on functionality, MQTT is a _______ protocol.

Correct Answer: b. Data

Detailed Solution: MQTT is a Data Protocol.

• 1. Transport

• 1. Data

• 1. Semantic

• 1. None of these

MQTT is designed for -____________

Correct Answer: c. Both (a) and (b)

Detailed Solution: MQTT is designed for –

1. Remote connections

2. Limited bandwidth

• 1. Remote connections

• 1. Limited bandwidth

• 1. Both (a) and (b)

• 1. Neither (a) nor (b)

State True or False.

MQTT protocol follows _____________ paradigm for exchanging messages.

• 1. Client-Server

• 1. Publish-Subscribe

• 1. Both (a) and (b)

• 1. None of these

State True or False.

Statement: “In MQTT, the Subscribers are Lightweight Sensors.”

Correct Answer: b. False

Detailed Solution: In MQTT, the Publishers are lightweight sensors.

• 1. True

• 1. False

• none

• none

Which of the following is MQTT component?

Correct Answer: d. None of these

Detailed Solution: 

Components of MQTT are – 

1. Publishers

2. Subscribers

3. Beokers

• 1. Middleman

• 1. Mules

• 1. Both (a) and (b)

• 1. None of these

State True or False.

A topic in MQTT can only be numbers.

           Correct Answer: b. False

Detailed Solution: A topic in MQTT is a string.

• 1. False

• 1. True

• none

• none

State True or False.

There are only two methods specified by the MQTT protocol.

Correct Answer: a. False

Detailed Solution: There are 5 number of methods in MQTT protocol.

• 1. False

• 1. True

• none

• none

The Publish/Subscribe architecture in MQTT is _____________ driven.

Correct Answer: a.  Event

Detailed Solution: Publish/Subscribe in MQTT is event-driven and enables messages to be pushed to clients.

• 1. Event

• 1. Pulse

• 1. Sound

• 1. None of these

State True or False.

The topic is the routing information for the broker.

Correct Answer: a.  True

Detailed Solution: The topic is the routing information for the broker.

• 1. True

• 1. False

• none

• none

CoAP is _____________ and ____________.

Correct Answer: d.  Both (a) and (b)

Detailed Solution: CoAP is based on HTTP and is designed for M2M applications.

• 1. Based on HTTP

• 1. Is designed for M2M applications

• 1. None of these

• 1. Both (a) and (b)