A TCP/IP Transfer is diagrammed in the exhibit.
A window size of three has been negotiated for this transfer. Which message will be returned from the receiver to the sender as part of this TCP/IP transfer?
A.
Send ACK 1-3
B.
Send ACK 3
C.
Send ACK 4
D.
Send ACK 4-6
E.
Send ACK 6
F.
Send ACK 7
In response, the receiver replies with an ACK. The acknowledgment number is set to one more than the received sequence number. The ACK means “I have got all messages up to sequence number n-1 so please send me the message for sequence number n”.
I have the same idea.