Quiznetik

Internet of Things (IoT) | Set 1

1. allows us to control electronic components

Correct : A. retful api

2. MQTT stands for

Correct : D. mq telemetry transport

3. MQTT is better than HTTP for sending and receiving data.

Correct : A. true

4. MQTT is                       protocol.

Correct : C. machine to machine and internet of things

5. Which protocol is lightweight?

Correct : A. mqtt

6. PubNub publishes and subscribes                       in order to send and receive messages.

Correct : D. keys

7. By clicking which key the PubNub will display public, subscribe, and secret keys.

Correct : B. demo keyset

8. The messageChannel class declares the                       class attribute that defines the key string.

Correct : A. command_key

9. method saves the received arguments in three attributes.

Correct : C. init

10. and                       saves the publish and subscribe keys that we have generated with the PubNub Admin portal.

Correct : A. public_key and subscribe_key

11. specifies the function that will be called when there is a new message received from the channel.

Correct : D. callback

12. specifies the function that will be called on an error event.

Correct : B. error

13. Specifies the function that will be called when a successful connection with the PubNub cloud.

Correct : C. connect

14. specifies the function that will be called when a successful re-connection is completed.

Correct : D. reconnect

15. specifies the function that will be called when the client disconnects.

Correct : D. reconnect

16. The number of elements in the Open IoT Architecture?

Correct : C. 7 elements

17. Global Sensor Network is built for

Correct : A. reducing cost and time for development

18. One of the main characteristics of Linked Stream Data is “Live Streaming”.

Correct : A. true

19. The huge number of devices connected to the Internet of Things has to communicate automatically, not via humans. What is this called?

Correct : C. machine 2 machine

20. Internet of Things needs a lot of network connection. What is the proposed “white Space” radio standard called?

Correct : C. weightless

21. What is the sensor/protocol used in GSN?

Correct : B. coap protocol

22. Which is the core wrapper of GSN?

Correct : D. zeromqwrapper

23. Open IoT ontology is extending the W3C SSN ontology which supports the description of the physical and processing structure of sensors.

Correct : A. true

24. Open IoT manages the registration, data acquisition, deployment of sensors and interconnected of objects, through which network?

Correct : B. x-gsn

25. Which environment does Global Sensor Network work on?

Correct : B. java

26. is a community that is working together to establish an IoT architecture.

Correct : A. eclipse iot

27. provides a middleware and application container for IoT gateway.

Correct : A. eclipse kura

28. is a modular and cloud based platform.

Correct : D. eclipse kapua

29. Kapua also provides a core integration framework.

Correct : A. true

30. an open source stack for gateways and the edge.

Correct : D. eclipse kura

31. Gateway provides the connection between                       and

Correct : A. cloud and controller

32. Sensors provide                  data per second.

Correct : D. tens of thousands of data

33. Does IOT gateway provide security for the network.

Correct : A. true

34. A sensor uses which network?

Correct : D. lan, pan and han

35. Gateway software should be smart enough to handle

Correct : C. logging

36. Number of approaches gateway can be installed?

Correct : B. 3 approaches

37. Drawback of Factory Bootstrap?

Correct : A. it should not have many gateways

38. Central software management server communicates with the gateway devices in which approach?

Correct : B. server limited bootstrap

39. Which mode assumes that it is the gateway’s responsibility to connect to the central repository server?

Correct : C. client initiated bootstrap

40. The feature of IoT Gateway is the ability to download updates over-the-air.

Correct : A. true

41. Hardware address is known as

Correct : A. mac address

42. MAC stands for

Correct : D. media access control

43. What translates IP address into MAC address?

Correct : C. network interface card

44. Networking Hardware Address is referred with

Correct : B. mac address

45. Does MAC address contain characters.

Correct : A. true

46. MAC addresses are very useful in diagnosing network issues.

Correct : A. true

47. On wireless networks                    filtering is the security measure.

Correct : D. mca

48. MAC addresses are used as

Correct : A. network addresses

49. IEEE standards for Institute of Electrical and Electronics Engineers.

Correct : B. true

50. The original IEEE 802 MAC address comes from

Correct : C. ethernet address

51. Which characteristics involve the facility the thing to respond in an intelligent way to a particular situation?

Correct : A. intelligence

52. empowers IoT by bringing together everyday objects.

Correct : B. connectivit y

53. The collection of data is achieved with                 changes.

Correct : C. dynamic nature

54. The number of devices that need to be managed and that communicate with each other will be much larger.

Correct : D. enormous scale

55. Provide the means to create capability that reflects true awareness of the physical world and people.

Correct : A. sensors

56. in IoT as one of the key characteristics, devices have different hardware platforms and networks.

Correct : B. heterogeneity

57. IoT devices are naturally vulnerable to threats.

Correct : C. security

58. Which challenge comes under IoT devices, reliable bidirectional signaling.

Correct : A. signaling

59. Which challenge comes under securing the information?

Correct : C. presence detection

60. gives an exact, up to the second state of all devices on a network.

Correct : C. resence detection

61. Which challenge comes when we use many devices on the same network?

Correct : D. power consumption

62. a cellular network is expensive, especially with many IoT devices.

Correct : C. bandwidth

63. Which of the following issues are considered in IoT?

Correct : D. all issues

64. SBC stands for?

Correct : B. smart businesscenter

65. IoT is a paradigm that involves ubiquitous presence in the environment

Correct : A. true

66. The IoT platforms are mainly divided into how many types

Correct : C. 4 types

67. ITS stands for

Correct : D. intelligent transportation services

68. In order to improve their competitiveness and services assurance, the                 require independently funded IoT projects.

Correct : B. enterprise-based

69. The use of RFID in product logistics may realize automatic acquisition of logistics information.

Correct : A. true

70. An IoT                 center is envisaged as an important part of the generic IoT platform to unify the organization.

Correct : C. integrated information

71. The core element of architecture of smart city is

Correct : D. integrated information provider

72. The core element is operated by

Correct : B. iotservice provider

73. Who will use their own IoT business models?

Correct : D. service provider

74. IoT promotes the creation of IoT terminal industry

Correct : C. clusters

75. Supplementary platforms in the architecture provide support for these services.

Correct : A. true

76. Fog computing can be perceived in                       and

Correct : A. big data and cloud systems

77. Which of the following computing emphasizes proximity to end user?

Correct : D. fog computing

78. is prototyping and testing a scalable. Secure Distribution Tolerant Mesh Network to protect strategic military assets.

Correct : B. spawar

79. AIDC stands for

Correct : A. data carriers

80. are rudimentary form of computing.

Correct : A. mist computing

81. enables production-ready feature to the spring boot application.

Correct : A. actuators

82. should be added to start the existing actuators in boot.

Correct : A. spring-boot- actuator

83. allows us to monitor the application.

Correct : B. endpoints

84. Which endpoints are sensitive?

Correct : C. /metric

85. Using which customized endpoint will be accessed over HTTP?

Correct : D. id

86. Which devices measures gases or liquid?

Correct : B. pressure sensor

87. Which sensor measures the pressure relative to perfect vacuum?

Correct : B. gauge pressure sensor

88. What is the stability of pressure sensor?

Correct : C. +/- 0.35% fs

89. What is the operating voltage of pressure sensor?

Correct : D. 3v

90. ENOB stands for

Correct : A. effective no of bits

91. Perfect resolution is possible when?

Correct : B. signal

92. Resolution is expressed in

Correct : B. bits

93. The discrete levels available are

Correct : C. levels

94. In             an object of type Thread in the namespace System.Threading represents and controls one thread.

Correct : C. .net

95. Number of pins in 8051 microcontroller with                 package.

Correct : C. 40 pin withdip

96. What is the use of Thermostat in Nest Thermostat E?

Correct : A. save energy

97. What is the main function of Nest Thermostat E?

Correct : C. change the temperature from anywhere

98. Function of huge light bulb?

Correct : C. to reduce energy and to create lighting scenes based on your favourite photos and to control lightning

99. What is the drawback of using Lockitron?

Correct : B. supports in some devices only

100. Sonos is a system that uses wireless speakers.

Correct : B. hifi