INTRODUCTION TO INTERNET OF THINGS: Assignment 3

1. In Near Field Communication (NFC), the active devices are able to

a. only collect information

b. only transmit information

c. collect and transmit information

d. only receive information

Ans: c

2. The Physical layer of HART protocol is derived from

a. IEEE 802.15.2

b. IEEE 802.15.4

c. IEEE 802.15.6

d. IEEE 802.16

Ans: b

3.  Near Field Communication is based on the principle of

 a. Reflection

b. Refraction

c. Magnetic Induction

d. Electrical Conductance

Ans: c 

4. Inquiry runs by one Bluetooth device to

a. form a connection with another device

b. discover other devices near it

c. participate in the network

d. isolate from the network

Ans: b

5. The sniff mode in Bluetooth is used to

a. Actively transmitting or receiving data

b. Sleeps and only listens for transmissions at a set interval

c. Switch in power saving mode where a device sleeps for a defined period and then returns back to active mode.

d. Deactivate the slave

Ans: b

6. Which of the following layers provides connection oriented and connection less data services to upper layer protocols in Bluetooth?

a. L2CAP

b. Baseband

c. Physical radio

d. Application.

Ans: a

7. Which of the following modulations is utilized by Zwave?

a. Amplitude Phase Shift Keying

b. Quadrature Phase Shift Keying

c. Frequency Shift Keying

d. Gaussian Frequency Shift Keying

Ans: d

8. The PHY and MAC layers in ISA 100.11A are based upon

a. IEEE 802.11a

b. IEEE 802.15.4

c. IEEE 802.15.6

d. IEEE 802.11g

Ans: b

9. Event aware topology management in WSNs include

a. Timely detection of an event of an interest

b. Monitoring the event

c. Adapting with the changes of the event state

d. All of above

Ans: d

10. WBAN stands for

a. Wireless Buffer Area Networks

b. Wireless Body Area Networks

c. Wired Body Area Networks

d. Wired Buffer Area Networks

Ans: b

11.In a wireless sensor network, a node which are unable to perform an operation, because of power failure and environmental effects is known as

a. normal node

b. Selfish node

c. failed node

d. badly failed node

Ans: c

12. A dumb node

a. Can sense its surrounding and is able to transmit sensed data

b. Cannot sense its surrounding but it can able to transmit data

c. Can sense its surrounding but unable to transmit sensed data

d. Cannot sensor its surrounding and is able to transmit sensed data

Ans: c

13. Which of the following is a scheme for re-establishing the connectivity in the presence of dumb nodes in a wireless sensor networks?

a. INTSEM

b. CoRD

c. SMAC

d. DutyCon

Ans: b

14. The HART protocol is designed for

a. Home Automation networking

b. Networked Smart Field Devices

c. Vehicular Networking

d. All of these

Ans: b

15. INTSEM controls the transmission rate of a node by adjusting

a. a node’s data transmission rate

b. a node’s sleep time    

c. a node’s receiving rate

d. the band width of the channel

Ans: b