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An ACK number of 1000 in TCP always means that
  • a)
    999 bytes have been successfully received
  • b)
    1000 bytes have been successfully received
  • c)
    1001 bytes have been successfully received
  • d)
    None of these
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
An ACK number of 1000 in TCP always means thata)999 bytes have been su...
Since sequence number of byte in any segment in TCP start from any number, so we cannot tell how many bytes successively received, on ACK number 1000.
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Most Upvoted Answer
An ACK number of 1000 in TCP always means thata)999 bytes have been su...
Explanation:

TCP is a reliable transport protocol that ensures that the data is transmitted without errors, loss, or duplication. In TCP, the ACK (acknowledgment) number is used to indicate the next sequence number that the sender of the data should expect to receive from the receiver.

An ACK number of 1000 in TCP does not necessarily mean that a specific number of bytes have been successfully received. It only indicates that the receiver has received all the bytes up to and including sequence number 999 and is expecting the next byte with sequence number 1000.

Therefore, the correct answer is option D, "None of these," as an ACK number of 1000 does not provide information on the exact number of bytes that have been successfully received.

In summary, an ACK number in TCP is used to acknowledge the receipt of data and indicate the next expected sequence number. It does not give information on the number of bytes successfully received.
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