Question 1
(a)
Describe Internet of Things.
3 Marks
(b)
(
i)List the sources of IoT development board which can be used
for prototype development.
ii)List communication protocols used in IoT.
4 Marks
(c)
Explain various levels of IoT.
7 Marks
Gujarat Technological UniversitySummer 2025 Examination
GTU 3160716 IOT and applications Summer 2025 Paper Solution & PDF
B.E. · Computer Engineering · Semester 6 · Subject Code: 3160716
Total Marks70 MarksExternal theory exam
Passing Marks23 Marks33% minimum cutoff
Exam Duration2.5 Hours10:30 AM – 1:00 PM
Paper Structure5 QuestionsWith internal OR choices
Question 2
(a)
List the sensors that may be useful for Smart Home.
3 Marks
(b)
What do you mean by actuators? Give examples of commonly used actuators in IoT.
4 Marks
(c)
Explain the key features of the ARM Cortex-M architecture that make it suitable for IoT.
7 Marks
OR OPTION
(c)
Define following properties of sensors:
iAccuracy
iiPrecision
iiiDrift
ivResolution
7 Marks
Question 3
(a)
What do you understand by 6LoWPAN (IPv6 over Low-Power Wireless Personal Area Networks)?
3 Marks
(b)
How IPv6 address limitations of IPv4 in context of IoT?
4 Marks
(c)
In context of MQTT (Message Queuing Telemetry Transport) answer following questions in brief:
i)Define broker in MQTT?
ii)In MQTT, what is the communication pattern(architecture)
used to send and receive messages?
ii)In MQTT, which QoS level ensures that a message is delivered
exactly once without duplication?
iv)Give the use of ‘#’ wildcard for topic subscription.
7 Marks
OR OPTION
(a)
Compare CoAP’s request/response model with HTTP’s request/response model. How does CoAP's asynchronous nature make it more suitable for constrained networks?
3 Marks
(b)
Describe the four main types of messages used in CoAP (Confirmable, Non-confirmable, Acknowledgment, and Reset). How are these messages used to ensure reliable communication?
4 Marks
(c)
Discuss the importance of cloud security in IoT.
7 Marks
Question 4
(a)
Explain Bluetooth Low Energy (BLE).
3 Marks
(b)
How does cloud computing enhance the scalability, storage, and computational capabilities of IoT systems?
4 Marks
(c)
What do you mean by Fog computing? Discuss the advantages and disadvantages of fog computing for IoT applications compared to pure cloud solutions.
7 Marks
OR OPTION
(a)
List sensors which can be used for Driver Assistance.
3 Marks
(b)
How is IoT transforming patient care in healthcare? Discuss the role of wearable devices and remote monitoring systems in improving patient outcomes and reducing hospital visits.
4 Marks
(c)
What are various cloud service models (IaaS, PaaS, SaaS). Discuss in detail in context of IoT application development.
7 Marks
Question 5
(a)
Compare Raspberry pi with Arduino.
3 Marks
(b)
How many digital and analog input pins are available on the Arduino Uno? What is the difference between them?
4 Marks
(c)
Write the purpose of following functions in Arduino:
iloop()
iisetup()
iiidelay()
ivpinMode()
7 Marks
OR OPTION
(a)
List enabling technologies for IoT.
3 Marks
(b)
Explain the potential privacy concerns associated with IoT devices in smart homes and healthcare systems.
4 Marks
(c)
Discuss various security issues in IoT?
7 Marks
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About this Examination Paper & Attribution
Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for IOT and applications (Summer 2025, B.E. · Computer Engineering, Sem 6). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.