Implementation of Go-Back-N ARQ Flow Control Protocol

Pre Test

  1. The senders window in the sliding window protocol can expand when:
    2. a. An ACK is received
    b. An ACK is sent
    c. A frame is sent
    d. A frame is received

  2. In which protocol can the sender, receive an acknowledgement for a frame that falls outside its current window?
    3. a. Stop and wait
    b. Go Back N
    c. Selective Repeat
    d. All of the above

  3. The receiver window will ________ in size when the frames are received in the sliding window method of flow control.
    4. a. Increase
    b. Decrease
    c. Doubles
    d. Remains Original

  4. For a sliding window of size n-1 (n sequence numbers), there can be maximum of how many frames sent but unacknowledged?
    5. a. n
    b. n-1
    c. 0
    d. n+1

  5. In the Go-Back-N ARQ the size of the receiver window is:
    6. a. Equal to sender window
    b. Always one
    c. Varies with time
    d. Cannot be determined