Download PTU B.Tech 2021 Jan Software Engineering 3rd Sem 78676 Computer Networks Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January Software Engineering 3rd Sem 78676 Computer Networks Previous Question Paper

Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (Software Engineering) (Sem.?3)
COMPUTER NETWORKS
Subject Code : SE-302-19
M.Code : 78676
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write briefly :
1)
What are protocols and standards?
2)
What is network bandwidth utilization?
3)
How does virtual LAN work?
4)
What is the purpose of CRC?
5)
What is IPv6 in networking?
6)
What is DNS and why it is used?
7)
Write the use of SNMP.
8)
What is TCP protocol and how does it work?
9)
What is sliding window?
10) How does congestion control work?
1 | M - 7 8 6 7 6
( S 2 ) - 5 8 4

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SECTION-B
11) What are the five different network topologies?
12) Write a short note on OSI Model.
13) Explain the role of Firewalls in Computer Networks.
14) How Cryptography is used to enhance security in Computer Networks?
15) Write a short note on Token Bucket Algorithm.
SECTION-C
16) Explain various transmission media used in computer networks for wireless connection?
17) Discuss concept of Hamming Distance. Explain the use of hamming distance for error
detection.
18) What are the relationships between the flow control and error control in TCP protocol?
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
2 | M - 7 8 6 7 6
( S 2 ) - 5 8 4

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