IOT MCQ Test Paper
1. What is the full form of IoT?
A. Internet of Technology
B. Incorporate of Things
C. Internet of Things
D. Incorporate of Technology
Answer: C
2. How many numbers of the element in the open IoT architecture?
A. Four elements
B. Five elements
C. Six elements
D. Seven elements
Answer: D
3. Which network is used by a sensor?
A. PAN and LAN
B. PAN and HAN
C. HAN and LAN
D. HAN, PAN, and LAN
Answer: D
4. What is the full form of IANA?
A. Internal Assessment Numerical Access
B. Internet Association Numbers Authority
C. International Aid For Network Automation
D. Internet Assigned Numbers Authority
Answer: - D
5. A Gateway software must be smart enough so that it can handle _____________.
A. Sensors
B. Logging
C. Message
D. GPS
Answer: B
6. Which of the following is the way in which an IoT device is associated with data?
Internet
Cloud
Automata
Network
Answer: B
7. Identify the java extension file in IoT.
A. .c
B. .py
C. .exe
D. .jar
Answer: D
8. The standard length of the MAC address is
A. 16 bits
B. 48 bits
C. 32 bits
D. 8 bits
Answer: B
9. What is IoT ?
A. network of physical objects embedded with sensors
B. network of virtual objects
C. network of objects in the ring structure
D. network of sensor
Answer: A
10. Which are the main components in IOT?
A. Low power embedded systems
B. Cloud computing
C. Availability of big data, networking connection
D. All of the above
Answer: D
11. Which of the following IoT networks has a very short range?
A. Short Network
B. LPWAN
C. SigFox
D. Short-range Wireless Network
Answer: D
12. MAC addresses is used in the form of ……………………..
A. IP addresses
B. Network address
C. Burned in address
D. Hardware address
Answer: B
13. Which is not below an IoT device?
A. Smartwatch
B. Andriod Phone
C. Laptop
D. Tubelight
Answer: D
14. The bit length of the IPV6 is ……..
A. 8 bits
B. 16 bits
C. 32 bits
D. 128 bits
Answer: D
15. Which sensor detects the presence of an object?
A. temperature sensor
B. proximity sensor
C. pressure sensor
D. light sensor
Answer: B
16. Which device is also called as photodetector?
A. IR sensor
B. presure sensor
C. light sensor
D. ultrasonic sensor
Answer: C
17. When was the actual term “Internet of Things” coined?
A. 1998
B. 1999
C. 2000
D. 2002
Answer: B
18. An IoT network is a collection of ………….devices.
A. Signal
B. Machine to Machine
C. Interconnected
D. Network to Network
Answer: C
19. The address of the original IEEE 802 MAC comes from………………………….
A. Http
B. Ethernet address
C. IP address
D. MAC address
Answer: B
20. The IPV4 has a …………………….. notation for addressing
A. Dotted decimals
B. Hexadecimal
C. Both a and b
D. None of the above
Answer: A
21. Which of the following is not an IoT platform?
A. Amazon Web Services
B. Microsoft Azure
C. Salesforce
D. Flipkart
Answer: D
22. What is the main purpose of WoT (Web of Things) in the IoT?
A. Improve the usability and interoperability
B. Reduce the security
C. Complex the development
D. Increase the cost
Answer: A
23. What is the Arduino UNO?
A. Software
B. Hardware device
C. Network
D. Protocol
Answer: B
24. Gateway provides the connection between ………..and ……..
A. Controller and device
B. Network and Controller
C. Network and Cloud
D. Cloud and Controller
Answer: D
25. ……….allows the user to control electronic components.
A. Android API
B. RETful API
C. MQTT API
D. CoAP API
Answer: B
26. IRC is an abbreviation for……………
A. Interconnect Reduce Chat
B. Internet Relay Chat
C. Interconnection Relay Chat
D. Internet Reduce Chat
Answer: B
27. What is the standard form of RFID?
A. Radio Frequency Identification
B. Radio Waves Frequency Identification
C. Radio Frequency InterDependent
D. Radio Wave Frequency Independent
Answer: A
28. The MQTT protocol designed for………………..
A. Limited bandwidth
B. Remote connection
C. Small code footprint
D. All of the above
Answer. D
29. MQTT is ………………..protocol.
A. Machine to Machine
B. Internet of Things
C. Machine to Machine and IOT
D. Machine Things
Answer: C
30. Which protocol is used to link all the devices in the IoT?
A. TCP/IP
B. Network
C. UDP
D. HTTP
Answer: A
31. Which is not a fundamental component of an IoT system?
A. Sensors
B. Connectivity and data processing
C. User interface
D. Transformer
Answer: D
32. Which of the following allows to monitor the application
A. boot
B. hypermedia
C. actuators
D. endpoints
Answer: D
33. In which terms in resolution expressed?
A. bits
B. bytes
C. nibble
D. word
Answer: A
34. What is the role of Big Data in IoT's Smart Grid architecture?
A. Filter the data
B. Locked the data
C. Store data
D. None of the Above
Answer: C
35. The Network layer protocol is present in the………………………………..
A. Bridges
B. Packets
C. Switches
D. Host
Answer: D
36. What is mandatory for an IP Packet to contain?
A. Destination IP Address
B. Source IP Address
C. Both A and B
D. None of these
Answer: C
37. An IoT network is?
A. a collection of networked devices
B. a collection of Interconnected devices
C. a collection of signalled devices
D. None of the above
Answer: B
38. For version 1.2, the Bluetooth supports……………………….
A. 1 Mbps data rate
B. 2 Mbps data rate
C. 3 Mbps data rate
D. 4 Mbps data rate
Answer. A
39. Z wave operate on the low frequency speed
A. 908.42 band
B. 250 band
C. 1080 band
D. 1024.00 band
Answer: A
40. SLA stands for…………………………………..
A. System Local area
B. Service local area
C. system level argument
D. Service Level argument
Answer: D
41. What is the real example of a smart grid device in IoT?
A. Mobile phone
B. Television
C. Smart Speaker
D. Smart Meters
Answer: D
42. Which layer is used for wireless connection in IoT devices?
A. Application layer
B. Network layer
C. Data link layer
D. Transport layer
Answer: C
43. What is the proposed “white Space” radio standard called?
A. Bluetooth
B. WiMax
C. Weightless
D. Zigbee
Answer : C
44. Which is used to capture data from the physical world in IoT devices?
A. Sensors
B. Actuators
C. Microprocessors
D. Microcontrollers
Answer: A
45. ICT stands?
A. InterConnect Technology
B. Internet Connection Topology
C. Information and Communication Technology
D. Infer Communication Topology
Answer: C
46. What is the sensor/protocol used in GSN?
A. HTTP protocol
B. CoAP protocol
C. MQTT protocol
D. XMPP protocol
Answer: B
47. What is ESP8266?
A. WIFI module
B. Sensor
C. Board
D. USB cable
Answer: A
48. Monnit temperature sensor is used for?
A. Accurate results
B. To measure the temperature at high degree
C. Temperature sensor
D. None of Above
Answer: A
49. Which is not a sensor in IoT?
A. BMP280
B. DHT11
C. Photoresistor
D. LED
Answer: D
50. IANA stands for?
A. Inter-Assessment-Number-Access
B. Internet-Association-Numbers-Authority
C. International-Aid-for-Network-Authority
D. Internet-Assigned-Numbers-Authority
Answer: D
51. The………………. filtering is a security measure on various wireless networks:
A. IP
B. OUI
C. MAC
D. NIC
Answer: C
52. Electric motor protection has which sensor?
A. Pressure sensor
B. Touch sensor
C. Temperature sensor
D. Humidity sensor
Answer: C
53. The use of PWM signals in IoT development boards is?
A. They are used by sensors to have analog input
B. They are used by sensors to have digital input
C. They are used by actuators to have analog input
D. They are used by sensor to have digital input
Answer: C
54. What is the standard port number of secure MQTT?
A. 1883
B. 8000
C. 8883
D. 8888
Answer: C
55. Which type of interface is used by fingerprint sensors to collect data?
A. IPI interface
B. UART interface
C. I2P interface
D. None
Answer: B
56. The Z-waves uses radiofrequency for………………..
A. Control
B. Signalling
C. Both A and B
D. None of the above
Ans. C
57. The NFC used in…………………….
A. Parcel tracking
B. Low power home automation
C. Smart phone-based payments
D. All of the above
Answer: D
58. How many wires does the SPI protocol use?
A. 3
B. 4
C. 2
D. 8
Answer: B
59. Which of the following layers provides end-to-end communication in IoT?
A. Logical layer
B. Data link layer
C. Transport layer
D. Session layer
Answer: C
60. Which devices is used to measure the gases or liquid?
A. Optical Sensor
B. Gas Sensor
C. Smoke Sensor
D. Pressure sensor
Answer: D
61. Which of the following IOT gateway must provide?
A. Protocol abstraction
B. Security with hardware
C. Simple and fast installation
D. Data storage
Answer: A
62. Which is used to reprogram a Bootloader in IoT devices?
A. VHDL programming
B. IDE
C. ICSP (In-Circuit Serial Programming)
D. MANET
Answer: C
63. SOAP stands for?
A. State Access Object Protocol
B. State Allied Object Protocol
C. Simple Access Object Protocol
D. Simple Allied Object Protocol
Answer: C
64. The first line of HTTP request message is called ……………………………
A. Request line
B. Header line
C. Status line
D. Entity line
Answer: A
65. What is the default user in Debain on Raspberry Pi?
A. Default
B. User
C. Pi
D. Root
Answer: C
66. Bluetooth allows the station to define a quality of
A. Time Level
B. Service Level
C. Data Level
D. Segment Level
Answer: B
67. Which library is used to access I2C in Arduino IoT devices?
A. EEPROM
B. Wire
C. DHT11
D. ArduinoJson
Answer: B
68. Arduino IDE is written in which language
A. Java
B. C/C++
C. JavaScript
D. Python
Answer: B
69. Total type of capacitive touch sensors are
A. 2
B. 3
C. 4
D. 5
Answer: A
70. Which protocols is used by USART?
A. RS32
B. RS232C
C. 4RS85
D. All of the these
Answer: B
71. HDLC stands for?
A. Higher Data Level Communication
B. Higher Data Link Communication
C. High-level Data Link Control
D. High Data Level Control
Answer: C
72. Which of the following "bit" defines the address bit in the control register?
A. ML
B. MM
C. RXWake
D. None of the these
Answer: B
73. Choose the correct option for indexing of below code….
Void main ()
{
int a[10];
}
A. 0,10
B. 0,9
C. 1,10
D. 1,9
Answer: B
74. Which layer is not mentioned in TCP/IP?
A. Presentation
B. Network
C. Application
D. Transport
Answer: A
75. The main security challenge to overcome to make IOT services available at low cost is?
A. Open security
B. Scalability
C. Detachment
D. None of these
Answer: B
76. How can we initialize the array?
A. Initializing
B. Assigning array
C. Factoring and array
D. Populating an array
Answer: A
77. Which is IOT IDE and tools?
A. HTML
B. Pascal
C. C
D. Arduino
Answer: D
78. Which operators has highest precedence?
A. == and !=
B. Logical
C. Relational
D. Arithmetic
Answer: D
79. What is the output of following code?
#include<stdio.h>
Void main()
Int x=1,y=2, z=3
z=x+++y
printf(“%d”,z)
A. 1
B. 2
C. 3
D. 4
Answer: D
80. Choose the correct option for the ternary operator in embedded C:
A. Based on ternary condition
B. Similar to loop
C. Condition? Expression1: Expression
D. Condition? Expression1<Expression
Answer: C
81. The wireless network types that promote IOT deployment in industries are?
A. Cellular (2G-5G) network protocols
B. Bluetooth
C. Near field communication
D. All of the these
Answer: D
82. IOT devices are vulnerable to attacks and threats. One of them is Cryptanalysis attack that means:
A. By recovering the encryption information
B. Inject malicious codes
C. Find cipher text to break the encryption
D. Tamper with the hardware
Answer: C
83. The enduring feature that describes an individual’s behavior and attitude is called
A. Education
B. Personality Traits
C. Financial Status
D. Job profile
Answer: B
84. Which syntax is true for loop?
A. for(x=0; x<10; x++);
B. for(x=0; x<10; x++)
C. for(x=0; x<10 x++);
D. for(x=0, x<10, x++);
Answer: B
85. The selection of Microcontrollers for IOT is based on:
A. Individual characteristics
B. Stability
C. Desirable output
D. All of these
Answer: D
86. How many types of Arduinos do we have?
A. 5
B. 6
C. 8
D. 7
Answer: C
87. In ATmega328p p means?
A. Production
B. Pico-Power
C. Power-Pico
D. Programmable on chip
Answer: B
88. What is the correct execution process of an Arduino code?
A. Editor->Preprocessor->Compiler
B. Preprocessor->Editor->Compiler
C. Compiler->Preprocessor->Editor
D. Editor->Compiler->Preprocessor
Answer: A
89. Which is used to upload the Arduino Sketches to the board?
A. avrgcc
B. g++
C. cpython for windows
D. avrdude
Answer: D
90. UNO board has digital pins?
A. 14
B. 12
C. 16
D. 20
Answer: A
91. What is the output of the following Arduino code?
#define X 10;
void setup(){
X=0;
Serial.begin(9600);
Serial.print(X);
}
void loop(){
}
A. 0xAB
B. 0xa
C. 0
D. Error
Answer: D
92. The output of pin1, if pin2 is sent 1011 where 1 is 5V and 0 is 0V?
int pin1 = 12;
int pin2 = 11;
void setup()
{
pinMode(pin1, OUTPUT);
pinMode(pin2, INPUT);
Serial.begin(9600);
}
void loop()
{
if(digitalRead(pin2)==1)
{
digitalWrite(pin1,LOW);
}
else if(digitalRead(pin2)==0)
{
digitalWrite(pin1,HIGH);
}
}
A. 1110
B. 0100
C. 1111
D. 1011
Answer: B
93. What is output of below code?
#include<EEPROM.h>
int pin=13;
void setup()
{
pinMode(pin,OUTPUT);
Serial.begin(9600);
}
void loop()
{
for (int i=0;i<EEPROM.length();i++)
{
EEPROM.write(i, 1);
}
digitalWrite(pin,HIGH);
exit(0);
}
A. Clear EEPROM
B. Fill EEPROM with 1’s
C. Export EEPROM data
D. Fill EEPROM with 0’s
Answer: B
94. . What is the output of Arduino code?
void setup()
{
Seria.begin(9600);
}
void setup()
{
Serial.write(40);
}
A. Send a signal to pin 40 on the Arduino board
B. Send a octal number of 40 through the Serial pins
C. Send a byte with value 40 through the Serial pins
D. Send a hexadecimal number of 40 through the Serial pins
Answer: C
95. MQTT is based upon ……
A. Publish-subscribe architecture
B. Client server architecture
C. Both A and B
D. None of Above
Answer: A
96. Analog pins _____ the signals from an analog sensor.
A. Write
B. Read
C. Peruse
D. Study
Answer: B
97. The function which repeatedly executes in the main program?
A. Setup
B. Loop
C. While
D. None of the these
Answer: B
98. Arduino mega works at frequency _____?
A. 12Khz
B. 14Mhz
C. 16Mhz
D. 18Mhz
Answer: C
99. Does Arduino is open-source?
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Answer: A
100. What is a firewall in computer networks?
A. A system designed to prevent unauthorized access
B. A web browser
C. The physical boundary of network
D. The Network Operating System
Answer: A
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