Internet Of Things Set 1

Information Technology Engineering (IT)

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This set of Internet of Things IoT Multiple Choice Questions & Answers (MCQs) focuses on Internet Of Things Set 1

Q1 |                       allows us to control electroniccomponents
  • retful api
  • restful api
  • http
  • mqtt
Answer: retful api
Q2 | MQTT stands for                                
  • mq telemetry things
  • mq transport telemetry
  • mq transport things
  • mq telemetry transport
Answer: mq telemetry transport
Q3 | MQTT is better than HTTP for sending and receiving data.
  • true
  • false
Answer: true
Q4 | MQTT is                       protocol.
  • machine to machine
  • internet of things
  • machine to machine and internet of things
  • machine things
Answer: machine to machine and internet of things
Q5 | Which protocol is lightweight?
  • mqtt
  • http
  • coap
  • spi
Answer: mqtt
Q6 | PubNub publishes and subscribes                      in order to send and receive messages.
  • network
  • account
  • portal
  • keys
Answer: keys
Q7 | By clicking which key the PubNub will display public, subscribe, and secret keys.
  • pane
  • demo keyset
  • portal
  • network
Answer: demo keyset
Q8 | The messageChannel class declares the                      class attribute that defines the key string.
  • command_key
  • command-key
  • commandkey
  • key_command
Answer: command_key
Q9 |                       method saves the received arguments in three attributes.
  •      init
  • init      
  •      init      
  • _init_
Answer:      init      
Q10 |                       and                       saves the publish and subscribe keys that we have generated with the PubNub Admin portal.
  • public_key and subscribe_key
  • public-key and subscribe-key
  • publickey and subscribekey
  • key_public and key_subscribe
Answer: public_key and subscribe_key
Q11 |                       specifies the function that will be called when there is a new message received from the channel.
  • reconnect
  • error
  • connect
  • callback
Answer: callback
Q12 |                       specifies the function that willbe called on an error event.
  • callback
  • error
  • connect
  • reconnect
Answer: error
Q13 |                       Specifies the function that will be called when a successful connection with the PubNub cloud.
  • callback
  • error
  • connect
  • reconnect
Answer: connect
Q14 |                       specifies the function that will be called when a successful re-connection is completed.
  • callback
  • error
  • connect
  • reconnect
Answer: reconnect
Q15 |                           specifies the function that will be called when the client disconnects.
  • callback
  • error
  • connect
  • reconnect
Answer: reconnect
Q16 | The number of elements in the Open IoTArchitecture?
  • 6 elements
  • 8 elements
  • 7 elements
  • 3 elements
Answer: 7 elements
Q17 | Global Sensor Network is built for                      
  • reducing cost and time for development
  • reducing cost and increasing time for development
  • increasing cost and increasing time for development
  • increasing cost and decreasing time for development
Answer: reducing cost and time for development
Q18 | One of the main characteristics of Linked Stream Data is “Live Streaming”.
  • true
  • false
Answer: true
Q19 | The huge number of devices connected to the Internet of Things has to communicate automatically, not via humans. What is this called?
  • skynet
  • bot 2 bot
  • machine 2 machine
  • intercloud
Answer: machine 2 machine
Q20 | Internet of Things needs a lot of network connection. What is the proposed “white Space” radio standard called?
  • bluetooth
  • wimax
  • weightless
  • zigbee
Answer: weightless
Q21 | What is the sensor/protocol used in GSN?
  • http protocol
  • coap protocol
  • mqtt protocol
  • xmpp protocol
Answer: coap protocol
Q22 | Which is the core wrapper of GSN?
  • serial
  • udp
  • gpstest
  • zeromqwrapper
Answer: zeromqwrapper
Q23 | Open IoT ontology is extending the W3C SSN ontology which supports the description of the physical and processing structure of sensors.
  • true
  • false
Answer: true
Q24 | Open IoT manages the registration, data acquisition, deployment of sensors and interconnected of objects, through which network?
  • gsn
  • x-gsn
  • lsm
  • http
Answer: x-gsn
Q25 | Which environment does Global SensorNetwork work on?
  • c++
  • java
  • html
  • c
Answer: java
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