We Discuss About That NPTEL Introduction To Internet Of Things Assignment 2 Answer
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NPTEL Introduction To Internet Of Things Assignment
Internet of Things (IoT) is presently a hot technology worldwide. Government, academia, and industry are involved in different aspects of research, implementation, and business with IoT. IoT cuts across different application domain verticals ranging from civilian to defence sectors. These domains include agriculture, space, healthcare, manufacturing, construction, water, and mining, which are presently transitioning their legacy infrastructure to support IoT. Today it is possible to envision pervasive connectivity, storage, and computation, which, in turn, gives rise to building different IoT solutions. IoT-based applications such as innovative shopping system, infrastructure management in both urban and rural areas, remote health monitoring and emergency notification systems, and transportation systems, are gradually relying on IoT based systems. Therefore, it is very important to learn the fundamentals of this emerging technology.
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Q1. Which of the following protocol is used to implement device management for mobile devices?
a. OMA-DM
b. Websocket
c. Alljoym
d. DNS-SD
Answer:- a
2. In LOADng, can intemediate 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
3. 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:- b
4. 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:- c
5. 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:- c
6. In AMQP, which of the following funetionality defines its component “exchange”?
a. linkage between various queues
b. receives messages from various queues
c. defines rules for message routing to various queues
d. routing the messages to various queues
Answer:- d
7. Which of the following is designed to have low overhead and better scalability in tems of dense networks?
a. LOADng
b. RPL
c. Both LOADng and RPL
d. AODV
Answer:- a
8. Which of the following AMQP frame type controls the message flow rate?
a. Transfer
b. Flow
c. Control
d. Disposition
Answer:- b
9. Does 6LoWPAN allow interoperability between IEEES02.15.4-based wireless devices and other IP-based devices?
a. Yes
b. No
Answer:- a
10. In the context of XMPP, which of the following correctly defines BOSH?
a. XML streaming
b. HTTP binding
c. Both XML streaming and HTTP binding
d. Binary encoding
Answer:- b
11. Does MQTT support event-driven architecture?
a. Yes
b. No
Answer:- a
12. Which of the following is the acronym for “Extensible Messaging and Presence Protocol”?
a. EMPP
b. XMLP
c. XMPP
d. XMP
Answer:- c
13. An loT network requires communication mechanism, which is capable of synchronous as well as asynchronous communication. The mechanism should support both request-response, as well as publish-subscribe models. Which of the following protocol would be best suited for such a mechanism?
a. AMQP
b. CoAP
c. MQTT
d. None of these
Answer:- c
14. Which of the following technique is used to transmit data frames in Beacon-enabled IEEE S02.15.4 networks?
a. unslotted CSMA/CA
b. slotted CSMA/CA
c. unslotted CSMA/CD
d. slotted cSMA/CD
Answer:- b
15. What is the maximum size of hop limit in 6LoWPAN packet format?
a. 8-bit unsigned integer
b. 16-bit unsigned integer
c. 8-bit signed integer
d. 16-bit signed integer
Answer:- a