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Introduction To Internet Of Things Week 2

Session: JULY-DEC 2023

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Q1. The full form of MQTT is
a. Message Queue Telemetry Transport
b. Message Query Telemetry Transport
c. Message Queue Telemedicine Transport
d. None of these

Answer: a. Message Queue Telemetry Transport

Q2. In MQTT, a ____ controls the publish-subscribe messaging pattern.
a. Publishers
b. Message Broker
c. Subscribers
d. All of these

Answer: b. Message Broker

Q3. Which of the following is NOT a component of MQTT?
a. Publishers
b. Users
c. Brokers
d. None of these

Answer: b. Users

Q4. __ is an extension of MQTT which uses lightweight attribute based encryption. It has _ main stages.
a. SMQTT, three
b. BMQTT, three
c. SMQTT, four
d. None of these

Answer: c. SMQTT, four

Q5. Which of the following is based on Request-Response model between end-points?
a. MQTT
b. CoAP
c. Both (a) and (b)
d. Neither (a) nor (b)

Answer: b. CoAP

Q6. The two sub-layers of CoAP are –
a. Messaging and Holding
b. Messaging and Backoff
c. Messaging and Teardown
d. Messaging and Request/response

Answer: d. Messaging and Request/response

Q7. Which of the following is used for real-time exchange of structured data?
a. MQTT
b. SMQTT
c. XMPP
d. CoAP

Answer: c. XMPP

Q8. XMPP uses the ____ architecture.
a. Publish-subscribe
b. Client-server
c. Both (a) and (b)
d. Neither (a) nor (b)

Answer: b. Client-server

Q9. With respect to AMQP, which of the following message delivery guarantees allow for each message to be delivered certainly as well as to be delivered multiple times.
a. At-least-once
b. At-most-once
c. Exactly-once
d. Both (a) and (b)

Answer: a. At-least-once

Q10. Which of the following is/are NOT an AMQP frame type?
a. Open
b. Close
c. End
d. None of these

Answer: d. None of these

Q11. Which of the following is/are NOT the function/functions of the Bindings component of the AMQP protocol?
a. Receives messages and routes them to queues
b. Separate queues for separate business process
c. Consumer receive messages from queues
d. All of these

Answer: d. All of these

Q12. Which of the following is/are NOT exchange types in AMQP?
a. Direct
b. Indirect
c. Fan-out
d. Topic

Answer: b. Indirect

Q13. State whether the following statement is True or False. Statement: The IEEE 802.15.4 is a well-known standard for low data-rate Wireless Personal Area Network (WPAN).
a. True
b. False

Answer: a. True

Q14. The networking topologies supported in the IEEE 802.15.4 are –
a. Only Star
b. Star and Mesh
c. Only Mesh
d. None of these

Answer: b. Star and Mesh

Q15. State whether the following statement is True or False. Statement: Periodic transmission of beacon messages does not occur in beacon enabled networks (IEEE 802.15.4).
a. False
b. True

Answer: a. False

ASSIGNMENT-2 DETAILED SOLUTIONS