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Computer Science Mock Test UGC-NET (Paper ii & iii- Computer Networks) - Part 21




This Quiz is posted with the sole aim of guiding the aspirants of UGC-NET / CSIR -NET Exam to the path of success. To sharpen the edges of your own intelligence and practice, in a structured and concrete manner to ensure you definite Success in your endeavor and will Pave your way for a successful career in Teaching (or) Research Profession . All the very best...... Knock the door of success......





  1.  ARP (Address Resolution Protocol) is _________.


    1.  a protocol used to monitor computers 

    2.  a TCP/IP protocol used to dynamically bind a high level IP address to a low- level physical hardware address 

    3.  a protocol that handles error and control messages 

    4.  a TCP/IP high level protocol for transferring files from one machine to another 







  2. Frames of 1000 bits are sent over a 10^6 bps duplex link between two hosts. The propagation time is 25ms. Frames are to be transmitted into this link to maximally pack them in transit (within the link).What is the minimum number of bits (i) that will be required to represent the sequence numbers distinctly? Assume that no time gap needs to be given between transmission of two frames.


    1.  i=3

    2.  i=6

    3.  i=4

    4.  i=5







  3. Which one of the following uses UDP as the transport protocol?


    1.  DNS

    2.  HTTP

    3.  SMTP

    4.  Telnet







  4. Each IP packet must contain ________ .


    1.  Destination Address

    2.  Source Address

    3.  Cache Address

    4.  Source and Destination Address







  5. Match the following HTTP status code to their respective definitions.

    i) 400                a) OK

    ii) 500               b) Not found

    iii) 200              c) Continue

    iv) 100              d) Internal server error


    1.  i-a, ii-b, iii-c, iv-d

    2.  i-b, ii-a, iii-c, iv-d

    3.  i-b, ii-c, iii-a, iv-d

    4.  i-b, ii-d, iii-a, iv-c







  6. The topology in which each node is connected to every other node by direct links is_____________.


    1.  bus topology

    2.  mesh topology

    3.  tree topology

    4.  ring topology







  7. In OSI network architecture, the routing is performed by ______.


    1.  Network layer 

    2.  Data link layer 

    3.  Transport layer

    4.  Session Layer







  8. _______ addresses are reserved for multi-casting.


    1.   Class A

    2.   Class B

    3.   Class C

    4.   Class D







  9. The standard suit of protocols used by the Internet, Intranets, extra-nets and some other networks.


    1.  Internet work processor

    2.  Open system

    3.  TCP/IP

    4.  Protocol







  10. In asymmetric key cryptography, _______ keys are required per communicating party .


    1.  4

    2.  8

    3.  16

    4.  2





















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