Implementation of Go-Back-N ARQ Flow Control Protocol

Post Test

  1. In Go-Back-N ARQ, if frames 4, 5, and 6 are received successfully, the receiver may send an ACK ___ to the sender.
    2. a. 6
    b. 5
    c. 7
    d. any of the above

  2. In a Go-Back-N ARQ, if the window size is 63, what is the range of sequence numbers ?
    3. a. 1 to 63
    b. 0 to 63
    c. 1 to 64
    d. 0 to 64

  3. Both Go-Back-N and Selective Repeat use a?
    4. a. Sliding frame
    b. Sliding packet
    c. Sliding window
    d. Sliding Session

  4. In GBN sender Window size = 10 and Tp = 49.5ms & Tt = 1ms. What is the Efficiency of the protocol?
    5. a. 0.1%
    b. 1%
    c. 10%
    d. None of the above

  5. A sender has a sliding window of size 15. The first 10 frames are sent. How many frames are in the window now?
    6. a. 5
    b. 10
    c. 15
    d. 0