NPTEL Introduction To Industry 4.0 And Industrial Internet Of Things 2022 Week-1

 WEEK-1: 

Assignment 1 Answers 

A strain gauge converts __________ to __________.

 (a) Electrical energy, strain

 (b) Strain, electrical energy

 (c)Strain, light energy

 (d)Light energy, strain

1 point

Temperature sensor is a type of ____________ sensor.

 (a)Vector

 (b)Scalar

 (c)Both (a) and (b)

 (d)None of the above

1 point

Solenoid is a type of ____________.

 (a)Actuator

 (b)Digital sensor

 (c)Analog sensor

 (d)None of the above

1 point

A typical accelerometer is a type of ____________.

 (a)Actuator

 (b)Passive Sensor

 (c)Active Sensor

 (d)None of the above

1 point

Which of the following is not a communication protocol for IoT?

 (a)Zigbee

 (b)Wireless HART

 (c)ISA 100

 (d)Y-Wave

1 point

Which of the following topologies is supported by WirelessHART?

 (a)Star

 (b)Mesh

 (c)Both (a) and (b)

 (d)None of the above

1 point

Which of the following is not a type of node defined in the Zigbee protocol?

 (a)Switch

 (b)Coordinators

 (c)End devices

 (d)Routers

1 point

Z-Wave is a simpler and cheaper alternative to ____________ for small to medium range connectivity.

 (a)ISA 100

 (b)6LoWPAN

 (c)Wireless Hart

 (d)Zigbee

1 point

Which of the following is used in ISA 100.11a for resource sharing and collision avoidance?

 (a)CDMA/CSMA

 (b)TDMA/CSMA

 (c)TDMA/CDMA

 (d)None of the above

1 point

Class 3 radios in Bluetooth have an operating range of ______ meter(s).

 (a)100

 (b)10

 (c)1

 (d)0.1

1 point

Which of the following is true for networks of IoT devices?

 (a)Low throughput, high packet loss

 (b)High throughput, low packet loss

 (c)High throughput, high packet loss

 (d)Low throughput, Low packet loss

1 point

CoRE framework views sensors and actuators as _________ resources.

 (a)Energy

 (b)Data

 (c)Web

 (d)None of the above

1 point

QoS level-1 in MQTT is also known as ____________ delivery.

 (a)At most once

 (b)At least once

 (c)Exactly once

 (d)None of the above

1 point

Which of the following is not a type of CoAP message?

 (a)CON

 (b)NON

 (c)NOC

 (d)RST

1 point

Which of the following is true for the traditional XMPP protocol?

 (a)It is a centralized protocol.

 (b)It does not support interoperability between heterogeneous networks.

 (c)It works on top of UDP.

 (d)It is a decentralized protocol.

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