B.TechSemester 62021-22Computer NetworksKCS603
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Computer Networks (KCS603) - AKTU Question Paper 2021-22

B.Tech · Semester 6 · Free PDF Download

This is the official AKTU Computer Networks Previous Year Question Paper for B.Tech Semester 6, academic session 2021-22. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 6
Session:2021-22
University:AKTU / UPTU

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Questions Asked in 2021-22

Computer Networks (KCS603) — complete question paper

Section AAttempt all q u e s t i o n s i n b r i e f . 2*10 = 20
  • a
    Discuss about transmission mediums in networking. 1
  • b
    What do you understand by network topologies. 1
  • c
    Explain transmission delay in flow control. 2
  • d
    Write a note on round trip time (RTT) in networking. 2
  • e
    Discuss the role logical addressing. 3
  • f
    Define datagrams in switching. 3
  • g
    Discuss about the IP ran ges of Class A, B, C and D. 4
  • h
    List out prime three functi onality of transport layer. 4 (i) Explain the use of RST flag in TCP header. 5 (j) Explain HTTP. 5
Section BAttempt any three o f t h e f o l l o w i n g : 10*3 = 30
  • a
    Discuss encoding types in phys ical layer of ISO-OSI model. 2
  • b
    Discuss each command i n detail used in networking: a- ipconfig b- netstat c- ping d- hostname e‐ tracert
  • c
    List out and discuss the disa dvantages in STOP N WAIT protocol. 3
  • d
    Calculate the total number of transmissions that are requir ed to send 10 data packets through GBN-3 and every 5th packet is lost. 3
  • e
    Discuss in detail about I CMP role in network layer. 4
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10*1 = 10
  • a
    Define the relationship be tween transmission delay and prop agation delay, if the efficiency is at least 50% in STOP N WAIT protocol. 2
  • b
    Find out window size and minimum sequence number in sliding window protocol, if Transmission delay (Tt)= 1 ms, Propagation delay (Tp)= 24.5 ms. (ms= milliseconds)
  • a
    Explain distance vector routing (DVR) with working example in detail. 3
  • b
    Sender’s data D=11010, CRC generator polynomial= x 3+x+1. Apply CRC algorithm and perform calculati ons both at sender and recei ver end
  • a
    Assume we want to send a data from S to R and there are 2 r outers in between. What will be the total time taken if total number of p ackets are 5. Data is like: Tp=0 ms, Data size=1000 bytes, BW=1 mbps, Header of the packet=100 bytes
  • b
    Explain CSMA/CD in detail. 2
  • a
    Divide the network with IP address 200.1.2.0 into 5 subnets. 4
  • b
    Describe the role of applicat ion layer and session layer of OSI model in detail. 4
  • a
    Write detailed note on “TCP vs UDP”. 5
  • b
    Explain following appli cation layer protocols:  FTP  SMTP  DNS

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KCS603

Questions that appeared in more than one session, found by comparing 3 years of Computer Networks papers (2021-22, 2022-23, 2023-24)

2x

Sender’s data D=11010, CRC generator polynomial= x 3+x+1. Apply CRC algorithm and perform calculati ons both at sender and recei ver end

Appeared in: 2021-22 · 2023-24

2x

Explain CSMA/CD in detail. 2

Appeared in: 2021-22 · 2023-24

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