Q.1
14 Marks(a)
Define computer network and explain any two network criteria.
(b)
Differentiate between OSI model and TCP/IP model.
(c)
Explain OSI reference model with neat diagram.
Gujarat Technological UniversitySummer 2026 examination
GTU BE04000271 Computer Networks Summer 2026 Question Paper & PDF
B.E. · IT Engineering · Semester 4 · Subject code BE04000271
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Define bandwidth and latency.
(b)
file of size 20 MB is transmitted in 10 seconds. Calculate the Throughput.
(c)
Explain guided media in details with its application and suitable figures wherever applicable.
OR
(c)
Explain unguided media in details with its application and suitable figures wherever applicable.
Q.3
14 Marks(a)
Define framing and CRC.
(b)
Explain CSMA/CD protocol.
(c)
Compare pure ALOHA and slotted ALOHA protocol.
OR
(a)
List and explain the services provided by the link layer.
(b)
What are the issues of stop and wait protocol? How selective repeat protocol resolves issues of stop and wait protocol?
(c)
Explain CSMA/CD and CSMA/CA protocols.
Q.4
14 Marks(a)
What is IP address? Explain different IP address Classes. Explain sub netting with example.
(b)
Explain distance vector routing algorithm.
(c)
How many hosts can be connected for the 188.21.0.0 network?
OR
(a)
What is the main difference between forwarding and routing? Explain at least two forwarding techniques used by the router to switching to packets from input port to output port of the router.
(b)
Explain NAT (Network Address Translation) as a solution to IP address depletion problem.
(c)
Given the IP address 10.10.5.200 with subnet mask 255.255.252.0, find:
aSubnet ID
bFirst usable IP
cLast usable IP
cBroadcast address
Q.5
14 Marks(a)
Define port addressing and multiplexing.
(b)
Differentiate between TCP and UDP.
(c)
Explain the TCP Segment structure and justify the importance of its field values.
OR
(a)
Explain the following TCP socket system calls:
1)socket()
2)bind()
3)listen()
4)accept()
(b)
What is HTTP? Differentiate its persistent and non-persistent types with request response behaviour of HTTP.
(c)
Explain the role of Domain Name Server (DNS) in Internet. Explain DHCP in detail.
Other Semester 4 subjects
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About this paper
Official Gujarat Technological University (GTU) examination paper for Computer Networks (Summer 2026, B.E. · IT Engineering, Sem 4). 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.