Introduction To Internet Of Things | Week 3

Introduction To Internet Of Things Week 3

Course Link: https://onlinecourses.nptel.ac.in/noc23_cs51/course

1) State whether the following statement is true or false.
Statement: Wired HART lacks a network layer
a. True
b. False
2) The HART physical layer is derived from _______ protocol and operates only in GHz ISM band.
a. IEEE 802.15.4, 2.4
b. IEEE 802.15.4, 4.8
c. IEEE 802.16.5, 4.8
d None of these
3) State whether the following statement is True or False
Statement Super-frames in HART consist of grouped 20ms wide timeslots.
a True
b. False
4) ___________ identifies channels consistently affected by interference and removes them from use.
a. Channel hopping
b. Channel aggregating
c. Channel blacklisting
d. Frequency aggregating
5) The _________ supervises each node in the network and guides them on when and where to send packets.
a. Application manager
b. Network manager
c. Trust manager
d. None of these

6) NFC is designed for use by devices within _____ to each other?
a. Close proximity
b. No near contact
c. Both (a) and (b)
d. None of these

7) __________ contain information which is readable by other devices, however it cannot read information itself
a. Active NFC devices
b. Dumb NFC devices
c. Passive NFC devices
d. None of these
8) NFC devices work on the principle of
a. Magnetic introduction
b. Magnetic induction
c. Both (a) and (b)
d. None of these
9) Which of these is NOT a mode of operation NFC?
a. Server-to-Server
b. Peer-to-Peer
c. Read/Write
d. Card emulation
10) State whether the following statement is true or false
Statement: Paging in Bluetooth is the process of forming a connection between two Bluetooth devices.
a. True
b. False

11) There are _________ modes of operation in Bluetooth.
a. 3
b. 4
c. 5
d. None of these
12) Z wave uses ________ for signaling and control?
a. Light
b. RF
c. Sound
d. None of these
13) Which of the following is/are not a constraint on sensor nodes?
a. Must consume high power
b. Not be adaptive to the environment.
c. Both (a) and (b)
d. None of these
14) _________ are simply those that are unable to perform an operation; this could be because of power failure and environmental events.
a Normal nodes
b. Failed nodes
c. Badly failed nodes
d. None of these
15) Dumb behavior of sensor nodes is _______ in nature (as it is dependent on the effects of the environmental conditions).
a. Temporal
b. Spatial
c. Both (a) and (b)
d. None of these