Basic CS-Networks [3i Infotech Placement]: Sample Questions 16 - 17 of 90

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Question 16

Networks
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Describe in Detail

Essay▾

What is silly window syndrome?

Explanation

Understanding of Silly Window Syndrome
  • Silly window syndrome is problem in computer networking caused by poorly implemented TCP flow control.
  • Server with this problem is unable to process all incoming data and requests its clients to reduce the amount of data they send.
  • TCP/IP has some flaws and Silly Window Syndrome is the manifestation of these flaws.

Silly Window Syndrome is Avoided By

  • The receiver not advertising small window.
  • The sender not transmitting data unless:
    • A packet is at least as large as the maximum segment size.
    • Ensuring that a packet with at least data half of the remote host՚s window size is sent.
    • The output data is received and there is no unacknowledged data.

Question 17

Networks
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Describe in Detail

Essay▾

What is ICMP?

Explanation

Given Network That Denoted ICMP
  • Internet control message protocol.
  • Communicates control data, information data, and error recovery data across the network.
  • Error reporting protocol used by routers, hosts and network devices to generate error messages when there are problems delivering IP packets.
  • A network layer protocol of the TCP/IP suite used by hosts and gateways to send notification of datagram problems back to the sender.
  • Uses the echo test and reply to test whether a destination is reachable and responding.
  • Handles both control and error messages.
  • Not used regularly in end-user applications,

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