Internet of Things (IoT)

Q1. Which class attribute does the message Channel class declare that defines the key string?

Command-Key

Command_Key

Key_Command

Commandment

Q2. Iot deals with

cloud messaging

electronic

All of these

networking

Q3. What kind of protocol is MQTT?

Machine to things

Machine to machine

Machine to machine and Internet of Things

Internet of Things

Q4. _____ enables service portability between networks

Zigbee

None of these

IoT

API

Q5. Who coined the phrase Internet of Things

Elon Musk

Kevin Ashton

None of these

Charles Babbage

Q6. RETful API allows

None of these

user to control electronic components

user to control everything

Both

Q7. IoT

refers to anything and everything in day to day life

has greater transparency

All of these

has greater control

Q8. What does MQTT stand for?

MQ Transport Transport

MQ Telemetry Transport

MQ Transport Things

MQ Telemetry Things

Q9. When was the term coined?

1999

1998

1990

1997

Q10. Which of these options allows us to control the electronic components?

RESTful API

HTTP

RETful API

MQTT

Q11. What type of protocol is lightweight?

SPI

HTTP

MQTT

CoAP

Q12. Is MQTT better than HTTP when it comes to sending and receiving data?

I don't know

Maybe

No

Yes

Q13. Which of these options specifies the function to be called when there is a new message received from a channel?

Reconnect

Connect

Callback

Error

Q14. Wot's main purpose

Improve the usability and interoperability

Reduce security

All of these

Increase cost

Q15. How many elements in the open IoT structure?

6

7

5

8

Q16. Which of these options specifies the function to be called when there is a successful connection with the PubNub cloud?

Reconnect

Callback

Error

Connect

Q17. What is the white space called as?

Wimax

Weightless

Bluetooth

Zigbee

Q18. Which of these keys would you click to let the PubNub display public, subscribe, and secret keys?

Network

Demo Keyset

Portal

Pane

Q19. Iot is associated with data by _______

Network

Cloud

None of these

Internet

Q20. Which of these options specifies the function to be called when there is an error event?

Callback

Error

Reconnect

Connect

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