CS 290
The Internet of Things
Comprehensive Finals Test (Qns & Ans)
2025
1. Which of the following protocols is commonly used for
communication between IoT devices and a gateway?
- A. HTTP
- B. MQTT
- C. FTP
- D. IMAP
ANS: B. MQTT
Rationale: MQTT (Message Queuing Telemetry Transport) is
a lightweight messaging protocol designed for low-bandwidth,
©/2025
,high-latency, or unreliable networks, making it suitable for IoT
applications.
2. In an IoT ecosystem, which layer is responsible for data
analytics and decision-making?
- A. Perception layer
- B. Network layer
- C. Application layer
- D. Middleware layer
ANS: C. Application layer
Rationale: The application layer is responsible for data
analytics, decision-making, and providing services to users based
on the data collected from IoT devices.
Fill-in-the-Blank Questions
3. The process of converting analog sensor data into a digital
format for IoT applications is known as __________.
ANS: analog-to-digital conversion (ADC)
Rationale: Analog-to-digital conversion (ADC) is the process
of converting analog signals from sensors into digital data that can
be processed by IoT devices.
©/2025
,4. In IoT systems, the __________ protocol is often used for
secure communication over the internet.
ANS: HTTPS
Rationale: HTTPS (Hypertext Transfer Protocol Secure) is a
protocol used for secure communication over the internet,
ensuring data privacy and integrity.
True/False Questions
5. True or False: In IoT architecture, edge computing refers to
processing data closer to the data source rather than in a
centralized cloud.
ANS: True
Rationale: Edge computing involves processing data closer to
the data source, reducing latency and bandwidth usage compared
to centralized cloud computing.
6. True or False: IPv6 is essential for the scalability of IoT due
to its limited address space.
ANS: False
©/2025
, Rationale: IPv6 is essential for the scalability of IoT due to
its vast address space, allowing a much larger number of devices
to be connected to the internet.
Multiple Response Questions
7. Which of the following are common challenges in IoT
security? (Select all that apply)
- A. Data encryption
- B. Device authentication
- C. Scalability
- D. Physical tampering
ANSs: A, B, D
Rationale: Common challenges in IoT security include data
encryption, device authentication, and preventing physical
tampering. Scalability is a broader challenge but not specific to
security.
8. Which of the following are key components of an IoT system?
(Select all that apply)
- A. Sensors
- B. Actuators
- C. Communication protocols
©/2025
The Internet of Things
Comprehensive Finals Test (Qns & Ans)
2025
1. Which of the following protocols is commonly used for
communication between IoT devices and a gateway?
- A. HTTP
- B. MQTT
- C. FTP
- D. IMAP
ANS: B. MQTT
Rationale: MQTT (Message Queuing Telemetry Transport) is
a lightweight messaging protocol designed for low-bandwidth,
©/2025
,high-latency, or unreliable networks, making it suitable for IoT
applications.
2. In an IoT ecosystem, which layer is responsible for data
analytics and decision-making?
- A. Perception layer
- B. Network layer
- C. Application layer
- D. Middleware layer
ANS: C. Application layer
Rationale: The application layer is responsible for data
analytics, decision-making, and providing services to users based
on the data collected from IoT devices.
Fill-in-the-Blank Questions
3. The process of converting analog sensor data into a digital
format for IoT applications is known as __________.
ANS: analog-to-digital conversion (ADC)
Rationale: Analog-to-digital conversion (ADC) is the process
of converting analog signals from sensors into digital data that can
be processed by IoT devices.
©/2025
,4. In IoT systems, the __________ protocol is often used for
secure communication over the internet.
ANS: HTTPS
Rationale: HTTPS (Hypertext Transfer Protocol Secure) is a
protocol used for secure communication over the internet,
ensuring data privacy and integrity.
True/False Questions
5. True or False: In IoT architecture, edge computing refers to
processing data closer to the data source rather than in a
centralized cloud.
ANS: True
Rationale: Edge computing involves processing data closer to
the data source, reducing latency and bandwidth usage compared
to centralized cloud computing.
6. True or False: IPv6 is essential for the scalability of IoT due
to its limited address space.
ANS: False
©/2025
, Rationale: IPv6 is essential for the scalability of IoT due to
its vast address space, allowing a much larger number of devices
to be connected to the internet.
Multiple Response Questions
7. Which of the following are common challenges in IoT
security? (Select all that apply)
- A. Data encryption
- B. Device authentication
- C. Scalability
- D. Physical tampering
ANSs: A, B, D
Rationale: Common challenges in IoT security include data
encryption, device authentication, and preventing physical
tampering. Scalability is a broader challenge but not specific to
security.
8. Which of the following are key components of an IoT system?
(Select all that apply)
- A. Sensors
- B. Actuators
- C. Communication protocols
©/2025
