FLOW CONTROL PROTOCOLS

Pre-Test

1. The senders window in the sliding window protocol can expand when :-

An ACK is received
An ACK is sent
A frame is sent
A frame is received

2. In which protocol can the sender, receive an acknowledgement for a frame that falls outside its current window

Stop and wait
Go Back N
Selective Repeat
All of the above

3. The receiver window will ________ in size when the frames are received in the sliding window method of flow control.

Increase
Decrease
Doubles
Remains Original

4. In Selective Repeat ARQ, the size of the sender and receiver window must be at most :

One half of 2^m
Twice of 2^m
Exactly 2^m
None of the above

5. In the Go-Back-N ARQ the size of the receiver window is :-

Equal to sender window
Always one
Varies with time
Cannot be determined