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    Mca 3 Sem Computer Networks Kca 303 2023

    Uploaded by

    Abhishikha Pathwar
    This document is the question paper for a theory examination in Computer Networks. It contains 7 sections with a total of 100 marks. Section A contains 10 short answer questions for 2 marks each, totaling 20 marks. Section B contains 3 long answer questions from 5 options totaling 30 marks. Section C contains 7 long answer questions, one to be attempted from each part, with 10 marks for each question. The questions cover topics like components of data communication, transmission modes, network layers, data link layer protocols, IP addressing, TCP/UDP, OSI layers, transmission media, error control, congestion control, and network security.

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    Mca 3 Sem Computer Networks Kca 303 2023

    Uploaded by

    Abhishikha Pathwar
    12 views2 pages
    This document is the question paper for a theory examination in Computer Networks. It contains 7 sections with a total of 100 marks. Section A contains 10 short answer questions for 2 marks each, totaling 20 marks. Section B contains 3 long answer questions from 5 options totaling 30 marks. Section C contains 7 long answer questions, one to be attempted from each part, with 10 marks for each question. The questions cover topics like components of data communication, transmission modes, network layers, data link layer protocols, IP addressing, TCP/UDP, OSI layers, transmission media, error control, congestion control, and network security.

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    mca-3-sem-computer-networks-kca-303-2023

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    This document is the question paper for a theory examination in Computer Networks. It contains 7 sections with a total of 100 marks. Section A contains 10 short answer questions for 2 marks each, totaling 20 marks. Section B contains 3 long answer questions from 5 options totaling 30 marks. Section C contains 7 long answer questions, one to be attempted from each part, with 10 marks for each question. The questions cover topics like components of data communication, transmission modes, network layers, data link layer protocols, IP addressing, TCP/UDP, OSI layers, transmission media, error control, congestion control, and network security.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    12 views2 pages

    Mca 3 Sem Computer Networks Kca 303 2023

    Uploaded by

    Abhishikha Pathwar
    This document is the question paper for a theory examination in Computer Networks. It contains 7 sections with a total of 100 marks. Section A contains 10 short answer questions for 2 marks each, totaling 20 marks. Section B contains 3 long answer questions from 5 options totaling 30 marks. Section C contains 7 long answer questions, one to be attempted from each part, with 10 marks for each question. The questions cover topics like components of data communication, transmission modes, network layers, data link layer protocols, IP addressing, TCP/UDP, OSI layers, transmission media, error control, congestion control, and network security.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    Printed Pages:02 Sub Code:KCA-303

    Paper Id: 2 3 2 3 0 1 Roll No.

    MCA
    (SEM III) THEORY EXAMINATION 2022-23
    COMPUTER NETWORKS
    Time: 3 Hours Total Marks: 100
    Note: Attempt all Sections. If you require any missing data, then choose suitably.

    SECTION A

    1. Attempt all questions in brief. 2 x 10 = 20


    (a) List out components of data communication system.
    (b) Discuss various transmission modes.
    (c) Discover how many times a packet has to visit the network layer and data link
    layerduring a transmission from S to D? Assume that Source S and Destination D
    areconnected through an intermediate router R.
    (d) Discuss CSMA/CD.
    (e) Discuss Dynamic Host Configuration Protocol(DHCP).
    (f) Explain Round-Trip Time (RTT).
    (g) Describe sockets with respect to communication system.
    29

    98
    (h) What is three-way handshaking?
    _0

    9.
    (i) Discuss role of SMTP in email communication system.

    24
    (j) Define cookies with respect to computer networks.
    P1

    1.
    3D

    .2
    SECTION B
    P2

    2. Attempt any three of the following:


    25 10 x 3 = 30
    |1
    Q

    (a) Discuss various computer network topologies with suitable diagrams.


    (b) A bit stream 10011101 is transmitted using the standard CRC method. The generator
    35

    polynomial is x^3 + 1. Show the actual bit string transmitted. Suppose the third bit
    2:

    from the left is inverted during transmission. Show that this error is detected at the
    receiver’s end.
    :4

    (c) Consider an IP address 196.10.19.10 /26. Solve the following:


    13

    (i) Network Address


    (ii) Custom subnet mask
    3

    (iii) Total Number of available subnets


    02

    (iv) Total number of host addresses


    -2

    (v) e. Subnet address and broadcast address of every subnet.


    (d) Justify the statement “TCP is reliable than UDP”. Also elaborate format for TCP
    02

    packet.
    0-

    (e) Write short notes on any two:


    (i) Domain Name Systems
    |1

    (ii) Telnet
    (iii) FTP

    SECTION C
    3. Attempt any one part of the following: 10 x 1 = 10
    (a) Discuss various types of transmission media with their applications areas.
    (b) Explain responsibilities each layer in ISO/OSI Model with suitable diagrams.

    QP23DP1_029 | 10-02-2023 13:42:35 | 125.21.249.98


    4. Attempt any one part of the following: 10 x 1 = 10
    (a) Explain Selective Reject and Go-Back-N-ARQ with reference to sliding window
    protocol.
    (b) What do you mean error handling at data link layer? Discuss hamming code with
    suitable example.

    5. Attempt any one part of the following: 10 x 1 = 10


    (a) What is need of IP address? Discuss Classful addressing in IPv4.
    (b) Discuss IPv4 packet format with suitable diagram the at network layer.

    6. Attempt any one part of the following: 10 x 1 = 10


    (a) Differentiate between Open Loop and Closed Loop Congestion Control at transport
    layer.
    (b) Explain various traffic shaping algorithms.

    7. Attempt any one part of the following: 10 x 1 = 10


    (a) Define network security and discuss various network security services in computer
    networks.
    (b) Discuss E-mail architectures with its components.
    29

    98
    _0

    9.
    24
    P1

    1.
    3D

    .2
    P2

    25
    |1
    Q

    35
    2:
    :4
    13
    3
    02
    -2
    02
    0-
    |1

    QP23DP1_029 | 10-02-2023 13:42:35 | 125.21.249.98

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