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4A0-100 · Question #155

TCP is sending data in 5 segments with SEQ numbers 27000, 27500.28000, 28500, and 29000 respectively. During transmission, the segment with SEQ=28500 is dropped in the network. How does TCP handle…

The correct answer is C. Once the reciever's window is full. TCP assembles the payload and determines that SEQ=28500 is. See the full explanation below for the reasoning.

Service Fundamentals

Question

TCP is sending data in 5 segments with SEQ numbers 27000, 27500.28000, 28500, and 29000 respectively. During transmission, the segment with SEQ=28500 is dropped in the network. How does TCP handle this situation?

Options

  • AThe receiving end station sends an ACK flag with SEQ=28000 to indicate it has received a segment
  • BThe receiving station sends a NACK frame with SEQ=28500 requesting that the frame be
  • COnce the reciever's window is full. TCP assembles the payload and determines that SEQ=28500 is
  • DTCP will collect the segments and forward them to the application layer where the SEQ numbers will

How the community answered

(24 responses)
  • A
    4% (1)
  • B
    17% (4)
  • C
    71% (17)
  • D
    8% (2)

Topics

#TCP#retransmission#sequence numbers#segment loss

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