IOT Objectives Types Questions And Answers

IOT Objectives Types Questions And Answers

1. The main function of the IoT Gateway can be summarized as
a) Forwarding packets between LAN and WAN on the IP layer.
b) Performs application layer functions between IoT nodes and other entities.
c) Enables local, short-range communication between IoT devices.
d) All of these
Answer: Forwarding packets between LAN and WAN on the IP layer.
2. Scalability of IoT means
a) Expandable/reducible in terms of scale or size.
b) Measurable
c) Increasing/decreasing monetary costs.
d) All of these.
Answer: All of these
3.Which one of these is the most important factor to be considered in an IoT implementation:
a) Scalability
b) Power efficiency
c) Efficient and scalable addressing schemes
d) All of these
Answer: All of these
4.Which statement is NOT TRUE
a) IoT WAN connects various network segments.
b) IoT WAN is geographically wide.
c) IoT WAN is organizationally wide.
d) None of these.
Answer: None of these.
5.Which of these statements regarding sensors is TRUE?
a) Sensors are input devices.
b) Sensors can be analog as well as digital
c) Sensors respond to some external stimuli.
d) All of these.
Answer: All of these.
6.Which of these is NOT a feature of Shape Memory Alloys (SMA)?
a) Low density
b) Low strain recovery
c) Biocompatibility
d) Biodegradability
Answer: Low strain recovery
7.Which of these is a part of the Sensing Layer of the IoT Service Oriented Architecture?
a) Service integration
b) Service repository
c) Business logic
d) Data sensing and actuation protocols.
Answer: Data sensing and actuation protocols.
8.MQTT stands for
a) Message Queue Telemetry Transport
b) Multiple Queue Telemetry Transport
c) Multiple Query Transport Technique
d) Multiple Query Transport Technique
Answer: Message Queue Telemetry Transport
9.AMQP is designed for connecting:
a) Constrained networks
b) LANs and WANs
c) Systems and Business processes
d) None of these
Answer: Systems and Business processes
10.Which modulation scheme is followed by IEEE 802.15.4 standard?
a) BPSK
b) QPSK
c) DSSS
d) All of these
Answer: All of these
11. Which CoAP message transfers response from the server within the acknowledgment message?
a) Separate
b) Confirmable
c) Non-confirmable
d) Piggyback
Answer: Piggyback
12.Collision prevention in 802.15.4 standard is provided by means of
a) CSMA-CA
b) CSMA-CD
c) ALOHA
d) None of these
Answer: CSMA-CA
13.Which of these is a routing protocol for low power lossy networks over IPv6?
a) RPL
b) OSPF
c) Both a and b
d) None of these
Answer: RPL
14. The basic unit of AMQP data is
a) A frame
b) A packet
c) A byte
d) A bit
Answer: A frame
15. RPL supports
a) Message confidentiality
b) Loop detection in the routes
c) Data path validation
d) All of these
Answer: All of these
16. Which statement is TRUE with respect to the IEEE 802.15.4 standard?
a) It is a low data-rate standard.
b) Used for architecting wireless PANs
c) Uses only two layers – PHY and MAC
d) All of these
Answer: All of these
17. LOADng routing uses:
a) AODV
b) DSDV
c) RIPv2
d) OSPF
Answer: AODV
18. The number of channels incorporated in physical layer of the HART standard are:
a) 10
b) 15
c) 20
d) 64
Answer: 15
19.Channel hopping is performed at which HART layer?
a) Physical
b) Data link
c) Network
d) Application
Answer: Data link
20. This process of bypassing radio dead-spots in Z wave is done using a message called
a) Healing
b) Beacon
c) Probe
d) None of these
Answer: Healing
21. The difference between the wired and wireless versions of HART are at the
a) Network layer
b) Physical layer
c) Data link layer
d) All of these
Answer: All of these
22.WASN stands for
a) Wireless and Sensor networks
b) Wired and Sensor networks
c) Wireless Ad-hoc Sensor Networks
d) None of these
Answer: Wireless Ad-hoc Sensor Networks
23. Class-2 Bluetooth devices have a range of
a) 1m
b) 10m
c) 100m
d) 1000m
Answer: 10m
24.SOS in sensor web stands for
a) Sensor of a System
b) System of Sensors
c) Sensor Observation Service
d) None of these
Answer: Sensor Observation Service
25. Which topology is supported by Z wave:
a) Star
b) Mesh
c)  Tree
d) All of these
Answer: All of these
26. What is the maximum peripheral current draw allowed in Raspberry pi 3?
a) 1200mA
b) 700mA
c) 500mA
d) 100mA
Answer: 1200mA
27. Data collected by Raspberry Pi from the sensor can be
a) Processed in Raspberry Pi
b) Sent to other devices connected to the network
c) Used to control/activate other devices in the network
d) All of the above
Answer: All of the above
28. Relay is a kind of
a) Sensor
b) Actuator
c) Hub
d) Router
Answer: Actuator
29. What are the mode/modes used for addressing the pins in Raspberry Pi?
a) GPIO
b) BCM
c) GPIO and BCM
d) GPIO, BCM and CAN
Answer: GPIO and BCM
30. Which of the following variants of Raspberry Pi has an inbuilt wi-fi?
a) Raspberry Pi 2
b) Raspberry Pi 3
c) Raspberry Pi A+
d) Raspberry Pi Zero
Answer: Raspberry Pi 3
31. Internet of Things refers to
a) Interconnection of devices in a network
b) Exchange of data between devices in a network
c) An ecosystem of devices, accessible through internet
d) All of the above
Answer: All of the above
32. IoT devices must have
a) A USB port
b) A unique identification
c) Wired connectivity
d) All of the above
Answer: A unique identification
33. Server is a
a) Computer
b) Any device/program which serves or responds to the request from client
c) A data center
d) Cloud
Answer: Any device/program which serves or responds to the request from client
34. The split() function in Python programming language breaks the string on the basis of
a) Blank Space
b) Comma
c) Any specified delimiter
d) Hyphen
Answer: Any specified delimiter
35. Bind() function in Python socket programming is used to
a) Specify the port for service on the specified host
b) Read data from the socket
c) Send data to the socket
d) Initiate the connection
Answer: Specify the port for service on the specified host
36. Application program interface (API) used between data and control planes in SDN is known as
a) Northbound API
b) Eastbound API
c) Southbound API
d) Westbound API
Answer: Southbound API
37. When does a switch send PAKCET-IN message to a controller in SDN
a) Flow-rule associated with a received flow does not exist
b) All the time
c) After deleting a flow-rule
d) None of the above
Answer: Flow-rule associated with a received flow does not exist
38. In SDN, does the control overhead increase compared to the traditional network
a) Depends on application and network topology
b) Yes, always
c) Not at all
d) Depends on Open Flow protocol
Answer: Depends on application and network topology
39. One of the advantages of SDN-based sensor network is
a) Real-time programmability
b) No need to replace any node
c) Both a & b
d) None of the above
Answer: Real-time programmability
40. Application program interface (API) used between application and control planes is known as
a) Northbound API
b) Eastbound API
c) Southbound API
d) Westbound API
Answer: Northbound API
41. An SDN Controller can be placed based on
a) Hierarchical manner
b) Star-topology
c) Mesh topology
d) All of the above
Answer: All of the above
42. Typically, __ protocol is used in low-rate wireless PANs
a) IEEE 802.15.4
b) IEEE 802.11
c) IEC 6250
d) None of the above
Answer: IEEE 802.15.4
43.Using SDN, the following can be managed:
a) Network partition
b) Network matching
c) Load balancing
d) All of the above
Answer: All of the above
44. From the below given options, which is not a characteristic of cloud computing?
a) Low management effort
b) Low level generalization of computation
c) On-demand network access
d) Configurable computing resources
Answer: Low level generalization of computation
45. Pre-configure facility for allocation of virtualized resources comes under
a) Availability and reliability
b) Scalability and elasticity
c) Manageability and interoperability
d) Measured Services
Answer: Manageability and interoperability
46. Service Management mainly focusses on
a) Importance to desired outcomes of customers
b) Importance to desired outcomes of organizations
c) Both (a) and (b)
d) none of the above
Answer: Importance to desired outcomes of customers
47. Broad network access in cloud deals with
a) Dynamic allocation for scale out
b) Recorded resource usage
c) Availability of cloud resources over the network
d) All of the above
Answer: Availability of cloud resources over the network
48. Billing information is calculated using
a) Accounting Records only
b) Billing rules and Accounting records
c) Billing rules, Accounting records and Resource prices
d) None of the above
Answer: Billing rules, Accounting records and Resource prices
49. Integrity in data security is
a) Detecting unauthorized data modification
b) Sending secure data to cloud
c) Preserving the privacy of data
d) None of the above
Answer: Detecting unauthorized data modification
50. Cloud Analyst provides
a) Support for large scale cloud applications
b) GUI based control
c) Flexible and repeatable environment
d) All of these
Answer: All of these

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