Question 1
(a)
Define delay, loss, and throughput in the context of packet-switching networks.
3 Marks
(b)
Differentiate persistent HTTP and non-persistent HTTP.
4 Marks
(c)
Explain the functions of TCP/IP Protocol stack.
7 Marks
Gujarat Technological UniversitySummer 2024 Examination
GTU 3150710 Computer Networks (CN) Summer 2024 Paper Solution & PDF
B.E. · Computer Engineering · Semester 5 · Subject Code: 3150710
Total Marks70 MarksExternal theory exam
Passing Marks23 Marks33% minimum cutoff
Exam Duration2.5 Hours2:30 PM – 5:00 PM
Paper Structure5 QuestionsWith internal OR choices
Question 2
(a)
Explain SMTP Protocol.
3 Marks
(b)
Define following socket function call
1)Connect
2)Bind
3)Listen
4)Send
4 Marks
(c)
Explain the purpose of DNS and its role in translating domain names into IP addresses.
7 Marks
OR OPTION
(c)
How does recursive queries in DNS work? Explain message format of DNS.
7 Marks
Question 3
(a)
What is multiplexing and demultiplexinng in transport layer?
3 Marks
(b)
What are the functions of transport layer in OSI reference model? How segmentation and reassemble is performed in transport layer?
4 Marks
(c)
Differentiate Congestion Control, Flow control and Error Control.
7 Marks
OR OPTION
(a)
Enlist advantages of virtual circuit over datagram.
3 Marks
(b)
Explain leaky bucket protocol for congestion control.
4 Marks
(c)
Explain the various fields of TCP header What are the advantages and disadvantages of TCP.
7 Marks
Question 4
(a)
What is the use of class D and Class E in IPv4 addressing?
3 Marks
(b)
Differentiate classful and classless addressing in IPv4.
4 Marks
(c)
Explain link state routing protocol.
7 Marks
OR OPTION
(a)
Define Unicast, multicast and broadcast.
3 Marks
(b)
Find the subnet mask value to create the following number of subnet in class A?
a2 b) 5 c) 16 4) 63
4 Marks
(c)
Explain distance vector routing protocol.
7 Marks
Question 5
(a)
Explain bit stuffing method with example.
3 Marks
(b)
What is flow control? How does stop-n-wait protocol perform flow control?
4 Marks
(c)
Explain Go-back N protocol? What is the limitation of it? How selective repeat protocol does overcome the limitation of Go back N protocol?
7 Marks
OR OPTION
(a)
Define following types of assumptions in MAC sub layer.
aSingle channel
2)N Stations
3)Collision
3 Marks
(b)
How does two dimension parity check works for detecting error in data link layer?
4 Marks
(c)
How does pure ALOHA and slotted ALOHA protocol work?
7 Marks
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About this Examination Paper & Attribution
Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for Computer Networks (CN) (Summer 2024, 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.