Consider a bulk data transfer application where a server sends a large file

that is segmented in a number of full$-$size packets that are to be transferred

to the client. Assume the channel has a low probability of error. Which of

following strategies for sending ACK frames in a Go$-$Back$-$N is appropriate for

the situation?

$2$ points

send an ACK frame

after every other frame is received

send an ACK frame

immediately after each frame is received

send an ACK frame

when the next piggyback opportunity arises

Any one of the above