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o level m4 r previous paper set 1

NIELIT O Level M4-R5 IoT Previous Papers mcqs

NIELIT O Level Previous Year Question Papers M4-R5 iot

O Level Previous Year Question Papers internet of things

1)Which of the following options will return 10?
A) sumVal([…1,3,6])
B) sumVal([…[1,3,6]])
C) sumVal([…[1,3,6])
D)sumVal([1,3,6])
..(b) sumVal([…[1,3,6]])


2)How many types of capacitive touch are there in IoT?
A) ([2])
B) ([5])
C) ([7])
D) ([9])
..(A)([2])


3)Which of the following protocol is use link all the devices in the IoT?
(A) HTTp
(B) TCP/IP
(C) Network
(D) UDP

..(b)TCP/IP


4)100 Which layer of the OSI model is responsible for encryption and descryption in to IoT networks?
A) physical layer
B) data link layer
C) network layer
D) presentation layer
..(D) pesentation layer


5)What is the purpose of implementing in IoT Security?
(A) To eliminate all vulnerabilities
(B) To facilitate device discovery
(C) To detect and prevent unauthorized devices
(D) To ignore potential risks
..(C)to detect and prevent unauthorized devices


6)Which of the following is a building the IoT?
(A) Wi-Fi router
(B) Smartphones
(C) Cloud computing
(D) Microwave ovens

..(c)Cloud computing


7)Which of the following is an example of an IoT device that has no direct connection to the internet?
(A)A smart speaker
(B)A smartwatch
(C)A smart thermostat
(D)A temperature sensor in a factory
..(D) A temprature senser in a factory


8)123 What is the typical programming language used for microcontroller programming?
(A) HTML
(B) C/C++
(C) SQL
(D) Python
..(B)C/C++


9)Which is the lowest layer of IoT architect. (a) Smart Devices
(B) Cloud
(C) Firmware
(D) Gateway
..(A) Smart Devices


10) Which of the following is an example of a IoT device?
(A) Controlling the temperature in a room
(B) Streaming video content
(C) Generating sound waves
(D) Printing documents
..(A)Controling the temprature in a room


11)Which of the following is not a commonly used IoT?
(A) Amazon Web Services IoT Core
(B) Microsoft Office 365
(C) Google Cloud IoT
(D) IBM Watson IoT Platform
..(B) Microsoft office 365

12) Which IoT block contains the MCU or chip?
(A) Control units
(B) Senssor
(C) PDU’s
(D) Firmware
..(A)control units

13) Which microcontroller family is commonly used in industrial IoT applications due to in robustness, real-time capabilities, and extensive peripheral support?
(A) STM32
(B) Raspberry Pi
(C) Arduino
(D) ESP32
..(A)STM32(

14) What is the most common security threat faced by IoT device?
(A) Physical damage
(B) Overheating
(C) Manufacturing defects
(D) Distributed Denial of Service (DDoS) attacks
..(D)Distributed Denial of service

15) Which IoT architecture model separates management and data processing?
(A) Centralized
(B) Decentralized
(C) Distributed
(D) Hybrid
..(B) Decentralized

16) A microcontroller sometimes abbreviated as______.
(A) uC
(B) uC
(C) MCU
(D) All of the above
..(D) All of the above

17)Which sensor typically uses a diagram and strain gage bridge to detect and measure the force exerted against a unit area?
(A) Proximity Sensor
(B) Moisture Sensor
(C) Pressure Sensor
(D) Ultrasonic Sensor
..(C) pressure senser

18) Layers or groups that contain_____ are clipped inside another layer or group.?
(A) Masks
(B) Clipping Masks
(C) Cluster Masks
(d) None
..(B) Clipping masks

19) A microcontroller has a clock frequency What is the period of the clock signal?
(A) 16 ns
(B) 62.5 ns
(C) 125 ns
(D) 250 ns
..(B) 62.5 ns

20) Which of the following protocol is use link all the devices in the IoT?
(A) HTTP
(B) TCP/IP
(C) Network
(D) UDP
..(B)TCP/IP

21) How many types of capactive touch are are there in IoT?
(A) 2
(B) 5
(C) 7
(D) 9
..( A) 2

22).213 The 8255 is a____ chip.
(A) Digital to analog
(B) Input/Output
(C) Analog to Digital
(D) Hybrid
..(B)Input/ Output

23) Which of the following is a building the IoT?
(A) Wi-Fi routers
(B) Smartphones
(C) Cloud computing
(D) Microwave ovens
..(C) Cloud computing

24)Ques.221 Which of the following sensor is used temperature and humidity?
(A) MQ135
(B) HC-SR04
(C) DHT11
(D) None of the above
..(C)DHT11

25) Which soft skill is crucial for effectively complex IoT concepts to non-techniacal stake
(A) Creativity
(B) Active listening
(C) Interpersonal skills
(D) Clear and concise communication
..(D) Clear and concise commjnication

26)Which one cannot be the one element of an IoT System?
(A) People
(B) Application
(C) Nanotechnology
(D) Privacy
..(D) Privacy

27) Which layer of the OSI model is responsible for encryption and decryption in IoT networks?
(A) Physical layer
(B) Data link layer
(C) Network layer
(D) Presentation layer
..(D) presentation layer

28) What is the sensor/protocol used
(A) HTTP protocol
(B) CoAP protocol
(C) MQTT protocol
(D) XMPP protocol
..(C) MQTT protocol

30) Which of the following is an example of an IoT device that has no direct connection to the internet?
(A) A smart speaker
(B) A smartwatch
(C) A smart thermostat
(D) A temperature sensor in a factory
..(D)A temperature sensor in a factory

31)What is the purpose of implementing in IoT security?
(A) To eliminate all vulnerabilities
(B) To facilitate device discovery
(C) To detect and prevent unauthorized devices
(D) To ignore potential risks
..(C)To detect and prevent unauthorized devices

32)Which of the following method swapping in the embedded system?
(A) Time slice
(B) RMS
(C) Cooperative multitasking
(D) Pre-emptive
..(A)Time slice

33)Which IoT architecture model seprates management and data processing?
(A) Centralized
(B) Decentralized
(C) Distributed
(D) Hybrid
..(B)Decentralized

34) Which IoT block contains the MCU or chip?
(A) Control units
(B) Sensor
(C) PDU’s
(D) Firmware
..(A)Control units

35)Which of the following is not a feature of a microcontroller?
(A) Low power consumption
(B) Smell size
(C) High memory capacity
(D) High processing speed
..(D)High processing speed

36) Which id the lowest layer of IoT architect?
(A) Smart Devices
(B) Cloud
(C) Firmware
(D) Gateway
..(A)Smart Devices

37) Which microcontroller family is commonly used in industrial IoT applications due to robustness, real-time capabilities, and extensive peripheral support?
(A) STM32
(B) Raspberry Pi
(C) Arduino
(D) ESP32
..(A) STM32

38)Which of the following options will return 10?
A) sumVal([…1,3,6])
B) sumVal([…[1,3,6]])
C) sumVal([…[1,3,6])
D)sumVal([1,3,6])
..(C) sumVal([…[1,3,6])

39) An ultrasonic sensor has a maximum range a resolution of 1cm. What is the minimum distance?
(A) 1cm
(B) 2cm
(C) 3cm
(D) 4cm
..(c) 3cm

40) Which amongst the following of specifically being used for convert parallel and from parallel to service?
(A) Registers
(B) Counters
(C) Timers
(D) Microcontroller
..(A)Registers

41)Which of the following is an example of a IoT device?
(A) Controlling the temperature in a room
(B) Streaming video content
(C) Generating sound waves
(D) Printing documents
..(A) Controlling the temperature in a room

42)Which of the following is not a commonly used IoT?
(A) Amazon Web Services IoT Core
(B) Microsoft Office 365
(C) Google Cloud IoT
(D) IBM Watson IoT Platform
..(B) Microsoft Office 365

43)What is the most common security threat faced by IoT devices?
(A) Physical damage
(B) Overheating
(C) Manufacturing defects
(D) Distributed Denial of Service (DDos) attacks
..(D) Distributed Denial of Service (DDos) attacks

44)Machine Learning (ML) integration in IoT devices helps in:
(A) Increasing device sizer
(B) Reducing memory capacity
(C) Predicting potential security threats
(D) Eliminating the need of encryption
..(C) Predicting potential security threats

45)A microcontroller sometimes abbreviated as
(A) uC
(B) uC
(C) MCU
(D) All of the above
..(D) All of the above

46)What will happen if we supply a voltage of 25V to sensor?
(A) Damage is caused
(B) Sensor will work fine
(C) Sensor will not respond for the time voltage applie
(D) Sensor will function normally
..(A) Damage is caused

47)Which sensor typically uses a diagram and strain gage bridge to detect and measure the force exerted against a unit area?
(A) Proximity sensor
(B) Moisture Sensor
(C) Pressure sensor
(D) Ultrasonic Sensor
..(C) Pressure sensor

48)Which of the following is a commonly used protocol for interfacing a microcontroller with an LCD?
(A) 12C (Inter-Integrated Circuit)
(B) SPI (Serial Peripheral Interface)
(C) UART (Universal Asynchronous Receiver-Transmitter)
(D) GPIO (General Purpose Input/Output)
..(A) 12C (Inter-Integrated Circuit)

49)APS sensor is abbreviated as________.
(A) MOS Active Pixel Sensor
(B) MOS Actual Pixel Sensor
(C) MOS Active Peak Sensor
(D) MOS Actual Peak Sensor
..(A) MOS Active Pixel Sensor

50)Which sensor is used to detect proximity of obstacle in the Arduino platform?
(A) LDR sensor
(B) IR sensor
(C) DHT sensor
(D) MQ135 sensor
..(B) IR sensor

51)The temperature and humidity sensor values are printed in_______.
(A) PYPI
(B) PIP
(C) OLED matrix
(D) None of the above
.(D) None of the above

52)To secure your data on IoT devices?
(A) Update your every device
(B) Keep changing your password
(C) Avoid using devices that are risky
(D) All of the above
..(D) All of the above

53)What are the primary building blocks of the IoT ecosystem?
(A) Sensors, Actuators, Connectivity, Data Processing, User Interface
(B) Servers, data centers, Web Applications
(C) Mobile phones, Laptops, Wi-Fi Routers
(D) Cloud Storage, Virtual Machines, Network Switches
..(A) Sensors, Actuators, Connectivity, Data Processing, User Interface

54)Which of the following is not a commonly use IoT operating system?
(A) Windows 10 IoT Core
(B) Raspbian
(C) Ubuntu Core
(D) Mac OS X
..(D) Mac OS X

55)What is the purpose of a relay module in IoT applications?
(A) To measure temperature and humidity
(B) To control DC motors
(C) To control high-power devices using low-power signals
(D) To communicate with other devices over the internet
.(C) To control high-power devices using low-power signals

56)Which of the following is not an asset in a typical IoT system?
(A) IoT device
(B) Gateway
(C) Application
(D) None of the above
..(D) None of the above

57)Which of the following technologies is not commonly used in IoT?
(A) Bluetooth Low energy (BLE)
(B) Zigbee
(C) HTTP
(D) SQL
..(D) SQL

58)What is the function of a microcontroller in an IoT device?
(A) To provide wireless connectivity
(B) To store data
(C) To process sensor data and execute commands
(D) To display information on a screen
..(C) To process sensor data and execute commands

59)Which of the following is an example of an edge computing device used in IoT applications?
(A) Amazon Web Services
(B) Google Cloud Platform
(C) Raspberry Pi
(D) Microsoft Azure
..(C) Raspberry Pi

60)Which type of sensor is used to detect changes in light intensity in IoT devices?
(A) Temperature sensor
(B) Light sensor
(C) Pressure sensor
(D) Humidity sensor
..(B) Light sensor

61)What is edge computing in IoT?
(A) A process of analyzing data at the source of generation rather than sending it to a centralized location (B) A process of analyzing data on a remote server
(C) A process of storing data on a local device
(D) A process of trausmitting data over a wired network
..(A) A process of analyzing data at the source of generation rather than sending it to a centralized location

62)Which of the following is an example of an IOT application in the healthcare industry?
(A) Smart city management
(B) Industrial automation
(C) Remote patient monitoring
(D) Energy monitoring
..(C) Remote patient monitoring

63)Which of the following is a popular development tool used for programming IOT devices?
(A) Android Studio
(B) Eclipse
(C) Xcode
(D) Visual Studio
..(B) Eclipse

65)Which type of sensor is used to detect motion?
(A) Proximity sensor
(B) Pressure sensor
(C) Infrared sensor
(D) Magnetic sensor
..(C) Infrared sensor

66)Which component is responsible for converting analog signals from sensors into digital signals that can be processed by a microcontroller ?
(A) Actuator
(B) Transceiver
(C) ADC (Analog-to Digital Converter)
(D) DAC (Digital-to-Analog Converter)
..(C) ADC (Analog-to Digital Converter)

67)What is the main difference between real-time systems and non-real-time systems in IoT?
(A) Real-time systems process data as it is generated, while non-real-time systems process data after it is generated
(B) Real-time systems use wired connectivity, while non-real-time systems use wireless connectivity
(C) Real-time systems are more energy efficient than non-real time systems
(D) Real-time systems are used for short-range communication while non-real-time systems are used for long-range communication
..(A) Real-time systems process data as it is generated, while non-real-time systems process data after it is generated

68)Which type of IOT device is used to monitor and control the water usage in a garden or farm?
(A) Smart irrigation system
(B) Smart Coffee maker
(C) Smart air purifier
(D) Smart door lock
..(A) Smart irrigation system

69)Which of the following is a building block of IOT that enables devices to connect to a network through a physical interface?
(A) Sensors
(B) Gateway
(C) Wi-Fi
(D) Communication Protocols
..(C) Wi-Fi

70)How does a microcontroller process and coordinate data between sensors and actuators?
(A) By performing calculations and applying control algorithms
(B) By storing data in memory for future analysis
(C) By prioritizing and scheduling tasks for sensors and actuators
(D) By providing real-time feedback
..(A) By performing calculations and applying control algorithms

71)______is the final step in the IOT design methodology.
(A) Designing the hardware
(B) Developing the system architecture
(C) Deploying the system
(D) Implementing the software
..(C) Deploying the system

72)Which sofy skill is important for fostering innovation and driving IOT advancements?
(A) Critical thinking
(B) Resilience
(C) Problem-solving
(D) Leadership
..(C) Problem-solving

73)Who operates the core element?
(A) IOT service provider
(B) IOT service user
(C) PaaS
(D) SaaS
..(A) IOT service provider

74)How many number of elements in an Open IOT Architecture?
(A) 3
(B) 6
(C) 8
(D) 7
..(D) 7

75)The need to manage IoT system is
(A) Automatic Configuration data
(B) Monitoring operational and stastical
(C) Improved Reliability
(D) All of the above
..(D) All of the above

76)Which of the following is a popular development tool used for programming IOT devices?
(A) Android Studio
(B) Eclipse
(C) Xcode
(D) Visual Studio
..(B) Eclipse

77)What is the function of a microcontroller in an IoT system used as a gateway?
(A) Data storage and processing
(B) Wireless communication
(C) Sensing physical quanities
(D) Actuating control systems
..(A) Data storage and processing

78)What is the last mile of the IoT network typically made up of?
(A) Wireless technologies such as 802.11ah, 802.15.4g, and LoRa
(B) Bluetooth, RFID, and NFC
(C) Wired connections
(D) Databases, cloud computing, and big data processing moduls
.(B) Bluetooth, RFID, and NFC

79)What is the syntax for a switch statement in an IoT application ?
(A) switch (expression) { case value:}
(B) while (condition) { }
(C) for (initialization; condition; increment)
(D) do { } while (condition);
.(A) switch (expression) { case value:}

80)IoT and cloud computing has what kind of relationship?
(A) Physical
(B) Complementary
(C) Graphical
(D) Coding
..(B) Complementary

81)Which technology is commonly used for communication between IoT devices?
(A) Bluetooth
(B) Wi-Fi
(C) Cellular networks
(D) None
..(A) Bluetooth

82)How does AI improve energy management in IoT devices?
(A) AI increases energy consumption in IoT devices.
(B) AI optimizes energy usage and reduces waste in IoT devices.
(C) AI eliminates the need for energy sources in IoT devices.
(D) AI hinders the implementation of energy-saving techniques in IoT devices.
..(B) AI optimizes energy usage and reduces waste in IoT devices.

83)Which one of the following is incorrect statement?
(A) IoT devices do not have self configuring property
(B) IoT devices have self configuring property
(C) Each IoT device have a unique identify
(D) IoT devices may support interoperable communication protocols
..(A) IoT devices do not have self configuring property

84)How does critical contribute to effective decision-making in the IoT ecosystem?
(A) It ensures compliance with IoT regulations.
(B) It helps in troubleshooting IoT devices.
(C) It facilitates the selection of appropriate IoT technologies
(D) It improves the connectivity of IoT devices.
..(C) It facilitates the selection of appropriate IoT technologies

85)In the IoT reference model, which layer is responsible for processing and analyzing collected data?
(A) Perception layer
(B) Network layer
(C) Application layer
(D) Processing layer
.(D) Processing layer

86)What is Internet of Things – IoT?
(A) Voice activated technologies
(B) Wearable technologies
(C) Interconnected technologies
(D) Household technologies
.(C) Interconnected technologies

87)What is the purpose of a SIM card in an IoT device?
(A) To provide power to the device
(B) To enable wireless communication with cellular networks
(C) To process and store data
(D) To connect to Wi-Fi networks
..(B) To enable wireless communication with cellular networks

88)What is the name of the module responsible for creating, removing and changing directory?
(A) sys
(B) os
(C) pack
(D) math
..(B) OS

89)Which off the following plug-in can’t be embedded by "object" element?
(A) Map
(B) Flash players
(C) Readers
(D) Java applets
..(A)Map

90)Which type of hosting provides dedicated physical servers to a single client?
(A) Shared hosting
(B) Dedicated hosting
(C) VPS hosting
(D) Cloud hosting
..(B) Dedicated hosting

91)4 At which port number, Simple Network Management Protocol (SNMP) operates.
(A) 160
(B) 163
(C) 164
(D) 161
..(D) 161

92)The 8255 is a_____ chip.
(A) Digital to analog
(B) Input/Output
(C) Analog to Digital
(D) Hybrid
..(B)Input/ output

93)1 means an object is detected and 2 object is detected, then considering stationary, what can be the possible object it the output by the sensor is 111000?
(A) Object is stationary
(B) Object is oscillating side by side
(C) Object is moving away
(D) Object is moving closer
..(C) Object is moving away

94)When interpreter encounters an empty statement what it will do:
(A) Shows a warning
(B) Prompts to complete the statement
(C) Throws an error
(D) Ignores the statements
..(D) Ignores the statements

95)What type of server stores of recent responses?
(A) A regular
(B) A proxy
(C) An auxiliary
(D) A remote
..(c)A proxy

96)Layers or groups that contain_____ are clipped inside another layer of group.
(A) Masks
(B) Clipping Masks
(C) Cluster
(D) None
..(B) Cliping mask

97)Which type of errors can be detected compilling the Arduino IDE sketch
(A) Syntax error
(B) Logical error
(C) Semantic error
(D) All of the above
..(A) Syntax error

98)How many types of capacitive touch are there in IOT?
(A) 2
(B) 5
(C) 7
(D) 9
..(A) 2

99)Which of the following sensor is used temperature and humidity?
(A) MQ135
(B) HC-SR04
(C) DHT11
(D) None of the above
..(B) HC-SR04

100)What is a lint?
(A) C compiler
(B) Interactive debugger
(C) Analyzing tool
(D) C interpreter
..(C) Analyzing tool

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