Implementation of Stop & Wait ARQ Flow control Protocol.

Stop And Wait is which sort of technique?
In Stop-and-Wait ARQ, the acknowledgment number always announces in ______ arithmetic the sequence number of the next frame expected.
Stop-and-Wait ARQ is a special case of Go-Back-N ARQ in which the size of the send window is:-
A sender using Stop-And-Wait ARQ sends the data frames numbered as :-
The _________ Protocol adds a simple error control mechanism to the _______ Protocol.