During a TCP session, a destination device sends an acknowledgment number to the source device. What does the acknowledgment number represent?

IT Questions BankCategory: CCNA CyberOpsDuring a TCP session, a destination device sends an acknowledgment number to the source device. What does the acknowledgment number represent?

Question:
During a TCP session, a destination device sends an acknowledgment number to the source device. What does the acknowledgment number represent?

  • the total number of bytes that have been received
  • one number more than the sequence number
  • the next byte that the destination expects to receive
  • the last sequence number that was sent by the source

Explanation: The window size determines the number of bytes that will be sent before expecting an acknowledgement. The acknowledgement number is the number of the next expected byte. For example, if a host has received 3140 bytes, the host would respond with an acknowledgement number of 3141.

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