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✅ Subject: Introduction To Internet Of Things (nptel iot answers)
📅 Week: 1
🎯 Session: NPTEL 2026 (January To April)
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Introduction To Internet Of Things Week 1 NPTEL Assignment Answers 2026

1. What is the full form of IoT?

a. Internet of Tasks
b. Internet of Articles
c. Internet of Taps
d. None of these

Answer : See Answers

2. The “Source Address” filed in the IPv6 header is of__________bits in length.

a. 32
b. 64
c. 128
d. None of these

Answer :

3. Which of the following is/are not an enabler of loT?

a. RFID
b. Sensors and Actuators
c. Cloud Computing
d. None of these

Answer :

4. The gateway is tasked with assigning a unique address to each of the field devices or sensors within its jurisdiction.

a. True
b. False

Answer : See Answers

5. State whether the following statement is True or False.
Statement: The increasing number of devices in loT is expected to result in an address crunch.

a. True
b. False

Answer :

6. In____________a node/network is connected to multiple networks for improved reliability.

a. Transparent roaming
b. Multi-coulding
c. None of these
d. Both (a) and (b)

Answer :

7. Which of the following is NOT a function of an loT Gateway?

a. Connects the loT LAN to a WAN
b. Can implement several LAN and WAN
c. Both (a) and (b)
d. Neither (a) Nor (b)

Answer :

8. Which of the following statements is/are incorrect?
Statement I: An actuator is a component of a machine or system that moves or controls the mechanism or
the system.
Statement Il: An actuator requires a control signal and a source of energy.

a. Statement I is incorrect
b. Statement Il is incorrect
c. Both statements are incorrect
d. Both statements are correct

Answer :

9. Which of the following is NOT a function of an IoT LAN?

a. Long range communication, global
b. World wide connections
c. Both (a) and (b)
d. Neither (a) Nor (b)

Answer : See Answers

10. State whether the following statement is True or False.
Statement: The word “Transducer” is a collective term used for both Sensors and Actuators.

a. True
b. False

Answer :

11. Analog Sensors produce a discontinuous output signal or voltage, which is generally proportional to the quantity being measured.

a. True
b. False

Answer :

12. If the output signal differs from the correct value by a constant, the sensor has an_____________.

a. Offset error
b. Bias
c. Both (a) and (b)
d. None of these

Answer :

13. State True or False
Pneumatic actuators enable the production of large forces from a relatively larger pressure changes.

a. False
b. True

Answer :

14. A sensor node is made up of which of the following?

a. Sensor/Sensors
b. A processing unit
c. A power unit
d. All of these

Answer :

15. What is the full form of SMP in the context of IoT actuators?

a. Shape Memory Polymers
b. Shape Master Polymers
c. Switch Mode Power
d. Sensor Making Polymer

Answer : See Answers

NPTEL Introduction To Internet Of Things Week 1 Assignment Answers 2024

Q1. What is the full form of IoT?
a. Internet of Tasks
b. Internet of Things
c. Internet of Tasks
d. None of these
✅ Answer: b. Internet of Things
Explanation: IoT stands for Internet of Things, which refers to a network of physical objects (devices) embedded with sensors, software, and connectivity to exchange data with other systems via the Internet.

Q2. Which of the following technologies have unified and has resulted in the evolution of IoT?
a. Low-power embedded systems
b. Cloud Computing
c. Machine Learning
d. All of these
✅ Answer: d. All of these
Explanation: The convergence of low-power embedded systems, cloud computing, and machine learning has led to the development and rapid evolution of IoT.

Q3. Which of the following are the enablers of IoT?
a. RFID
b. Nanotechnology
c. Sensors
d. All of these
✅ Answer: d. All of these
Explanation: All listed options—RFID, nanotechnology, and sensors—play key roles in enabling the functionality of IoT devices.

Q4. Which of the following is/are a function of an IoT Gateway?
a. Connects the IoT LAN to a WAN
b. Can implement several LAN and WAN
c. Forwards packets between LAN and WAN on the IP layer
d. All of these
✅ Answer: d. All of these
Explanation: An IoT gateway acts as a bridge between local IoT networks and external networks, performing packet forwarding, protocol translation, and network connection.

Q5. True or False: “The same address of an IoT device may be repeated in the domain of another gateway. The gateway has a unique network prefix, which can be used to identify them globally.”
a. True
b. False
✅ Answer: a. True
Explanation: Gateways use unique prefixes to avoid address conflicts, so device addresses can be reused in different gateway domains.

Q6. The IPv4 notation uses __________ number of bits to represent an address.
a. 33
b. 32
c. Both (a) and (b)
d. None of these
✅ Answer: b. 32
Explanation: IPv4 addresses are 32-bit binary numbers, usually expressed in decimal as four octets separated by periods.

Q7. (Duplicate of Q6)
✅ Same answer and explanation as above.

Q8. The “Source Address” field in the IPv6 header is of _______ bits in length.
a. 32
b. 64
c. 128
d. None of these
✅ Answer: c. 128
Explanation: IPv6 addresses are 128 bits long, which allows for a vastly larger address space than IPv4.

Q9. A device which detects or measures a physical property and records, indicates, or otherwise responds to it is called ___________ ?
a. A sensor
b. An actuator
c. A transducer
d. A processor
✅ Answer: a. A sensor
Explanation: A sensor measures physical properties such as temperature, pressure, or light and converts them into signals for processing.

Q10. A microphone is an example of an
a. Input device and actuator
b. Only actuator
c. Only Transducer
d. Input device and transducer
✅ Answer: d. Input device and transducer
Explanation: A microphone converts sound waves into electrical signals, so it functions as a transducer and is also an input device.

Q11. True or False: A sensor is only sensitive to the measured property for which it has been made.
a. True
b. False
✅ Answer: a. True
Explanation: A sensor is typically calibrated and designed to measure a specific physical property only, like temperature or humidity.

Q12. Based on the data type, sensors are classified as __________ .
a. Only scalar
b. Only vector
c. Scalar and Vector/Multimedia
d. None of these
✅ Answer: c. Scalar and Vector/Multimedia
Explanation: Sensors are classified based on the type of data they generate: scalar (single value like temperature) or vector/multimedia (images, motion, etc.).

Q13. True or False: The more is the resolution of a sensor, the less accurate it its precision.
a. True
b. False
✅ Answer: b. False
Explanation: Higher resolution generally implies better precision, although accuracy depends on calibration and quality.

Q14. The sensitivity of a sensor under real conditions may differ from the value specified. This is called
a. Physical error
b. Sensitivity error
c. Rounding error
d. None of these
✅ Answer: b. Sensitivity error
Explanation: When a sensor’s actual sensitivity deviates from its specified value due to environmental or operational conditions, it’s called a sensitivity error.

Q15. A sensor node is made up of which of the following?
a. Sensor/Sensing units
b. A processing unit
c. A power unit
d. All of these
✅ Answer: d. All of these
Explanation: A typical sensor node includes sensing, processing, and power units, and sometimes communication modules.