What is the exam pattern and passing mark for GTU Computer Networks (3150710)?

The GTU theory examination carries 70 total marks with a duration of 2.5 Hours. Minimum passing criteria is 23 marks (33%). The paper consists of 5 main questions with official marking breakdown and internal choices.

Where can I download the official GTU 3150710 Summer 2025 question paper PDF?

The official GTU question paper PDF is linked directly from Gujarat Technological University's official examination archive. You can view the full paper online or download the original file.

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Gujarat Technological UniversitySummer 2025 examination

GTU 3150710 Computer Networks (CN) Summer 2025 Question Paper & PDF

B.E. · Computer Engineering · Semester 5 · Subject code 3150710

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Total: 70 marks
To pass: 23 marks (33%)
Duration: 2.5 Hours 2:30 PM – 5:00 PM
Questions: 5 with internal choice

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11 of 25 questions on this paper were also asked in other years. 2 more are types of question GTU sets again with new data. Each is marked below with the years it appeared.See all 36 repeated 3150710 questions, most asked first

Q.1

14 Marks

(a)

3 marksAsked in 2 of 7 papers

What is packet switching network? How does it differ from packet switching?

Also asked in Winter 2024 Q2b

(b)

4 marks

What is topology in compute network? Differentiate star topology from mesh topology.

(c)

7 marksAsked in 3 of 7 papers

Why OSI reference model is known as the layer architecture? What are the functions of layers of OSI reference model?

Also asked in Winter 2023 Q1c, Summer 2023 Q5c

Q.2

14 Marks

(a)

3 marks

Explain IMAP Protocol for email communication.

(b)

4 marks

What is congestion control? How does it differ from flow control?

(c)

7 marksAsked in 2 of 7 papers

Describe HTTP request and response message format in brief.

Also asked in Summer 2026 Q2c

(c)

7 marksAsked in 2 of 7 papers

What is DNS? How does DNS work? Explain the hierarchy of DNS servers.

Also asked in Winter 2023 Q5c

Q.3

14 Marks

(a)

3 marks

What is port address in transport layer? How does it help in Process-to- process delivery at transport layer?

(b)

4 marks

How does congestion impact network performance, and what metrics are used to detect congestion?

(c)

7 marksAsked in 4 of 7 papers

Explain the following system calls: socket(), bind(), listen(), accept(), connect(), send(), recv() ?

Also asked in Winter 2025 Q3b OR, Winter 2024 Q4b OR, Summer 2024 Q2b

(a)

3 marksAsked in 3 of 7 papers

What is connection-less service? How does packet delivery connection- less services does differ from connection-oriented services?

Also asked in Winter 2024 Q4a OR, Winter 2023 Q2b

(b)

4 marksAsked in 2 of 7 papers

Describe the process of establishing a TCP connection using the three-way handshake.

Also asked in Summer 2026 Q5b OR

(c)

7 marksAsked in 2 of 7 papers

Explain the various fields of UDP header. What are the advantages and disadvantages of UDP over TCP?

Also asked in Winter 2024 Q3c OR

Q.4

14 Marks

(a)

3 marks

How many maximum number of hosts can be connected in a single class B and C network?

(b)

4 marks

Differentiate multicasting and broadcasting.

(c)

7 marksAsked in 4 of 7 papers

How routing table is built in link state routing protocol? Explain the steps in detail with figure and example.

Also asked in Winter 2025 Q2c OR, Summer 2024 Q4c, Winter 2023 Q4c OR

(a)

3 marks

How physical addresses are different from logical addresses?

(b)

4 marksSame type asked in 2 of 7 papers

What is subnetting? What is the subnet masks values for creating 4 and 8 subnets in class c network?

Also asked in Summer 2024 Q4b OR

(c)

7 marks

How the vector of distance for each router is built in distance vector routing protocol? What is count-to-infinity problem in it?

Q.5

14 Marks

(a)

3 marks

Differentiate fix size and variable size framing.

(b)

4 marksAsked in 2 of 7 papers

What is flow control? How stop-n-wait protocol does work for flow control?

Also asked in Summer 2024 Q5b

(c)

7 marks

Explain selective repeat protocol with the concept of sliding window.

(a)

3 marksAsked in 2 of 7 papers

What is piggybacking in flow control?

Also asked in Summer 2023 Q4a

(b)

4 marksSame type asked in 3 of 7 papers

A bit stream 10011101 is transmitted using standard CRC Method. The divisor is 1001. Show the CRC codeword is generated at sender side.

Also asked in Winter 2024 Q5b, Winter 2023 Q3c OR

(c)

7 marks

What is collision? How collision can be avoided using bit-map protocol? Explain with example.

More Computer Networks papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Computer Networks (CN) (Summer 2025, B.E. · Computer Engineering, Sem 5). 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.

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