IOT(Internet of Things) Multiple choice Questions and Answers

IOT(Internet of Things) Multiple choice Questions and Answers 

1. Which of the following is NOT a data and communication protocol?

A) MQTT
B) AMQP
C) Websocket
D) Alljoyn

ANSWER= D) Alljoyn

 

2. Which of the followingAMQP frame type is used to inform the changes in state of transfer?

A) Flow
B) Disposition
C) Transfer
D) State

ANSWER= (B) Disposition

 

3. Which of the following is NOT a messaging mode of CoAP?

A) Separate
B) Pager
C) Piggyback
D) Confirmable

ANSWER= (B) Pager

 

4. The Zigbee Component “APS” stands for__________ .

A) Application Support Sub-layer
B) Application Protocol Support
C) Application Policy Support
D) Application Protocol Sub-layer

ANSWER= (A) Application Support Sub-layer

 

5. Does IEEE 802.15.4 support IPv6 multicast?

A) Yes
B) No

ANSWER= (B) No

 

6. In MQTT, a ________ subscribes to a topic.

A) client
B) broker
C) publisher
D) All of the above

ANSWER= (A) client

 

7. Which of the following is a characteristic of XMPP protocol?

A) No interoperability
B) Closed standards
C) No central server
D) All of the above

ANSWER= (C) No central server

 

8. Which of the following protocol has a component named “bindings”?

A) XMPP
B) AMQP
C) CoAP
D) None of the above

ANSWER= (B) AMQP

 

9. Is CoAPRESTful?

A) Yes
B) No

ANSWER= (A) Yes

 

10. RPL routing is based upon ____________ routing protocol.

A) Enhanced Interior Gateway
B) Interior Gateway
C) Open Shortest Path First
D) Distance vector IPv6

ANSWER= (D) Distance vector IPv6

 

11. Which of the following protocol is used to implement device management for mobile devices?

A) OMA-DM
B) Websocket
C) Alljoyn
D) DNS-SD

ANSWER= (A) OMA-DM

 

12. In LOADng, can intermediate routers respond to Route Requests (RREQs)?

A) Yes, in any case
B) Yes, only when RREQ flooding occurs
C) Yes, only if they have active routes to the sought destination
D) No

ANSWER= (D) No

 

13. Which of the following functions as the network bridge in IEEE 802.15.4 network?

A) PAN Coordinator
B) Router
C) Device
D) None of these

ANSWER= (A) PAN Coordinator

 

14. Which of the following allow communication between Zigbee and no-Zigbee devices?

A) layer-5 application-level bridge
B) layer-7 application-level gateway
C) layer-7 application-level bridge
D) layer-5 application-level gateway

ANSWER= (B) layer-7 application-level gateway

 

15. Statement I: RFIDs are radio-frequency-based.
Statement II: RFID devices can act as both readers as well as tags.
Which one of the following is correct?

A) Statement I is true but Statement II is false
B) Statement I is false but Statement II is true
C) Both the statements are true
D) Both the statements are false

ANSWER= (A) Statement I is true but Statement II is false