Implementation of Selective Repeat ARQ Flow Control Protocol

Post Test

  1. Which of the following is the efficiency of Selective Repeat ARQ with Ws=N?
    2. a. 2N/(1+2a) where a = Tₚ / Tₜ
    b. N/(1+2a) where a = Tₚ / Tₜ
    c. N/(1+2a) where a = Tₜ / Tₚ
    d. 2N/(1+2a) where a = Tₜ / Tₚ

  2. In selective repeat what is the number of retransmissions in case of packet drop Ws=N?
    3. a. N
    b. 1
    c. N-1
    d. N-1/2

  3. Selective Repeat uses a?
    4. a. Sliding frame
    b. Sliding packet
    c. Sliding window
    d. Sliding Session

  4. NAK frames are not numbered in:
    5. a. Go Back N ARQ
    b. Stop and Wait ARQ
    c. Selective Repeat ARQ
    d. All of the above

  5. Which of the following is not a flow control technique?
    6. a. Stop-and-Wait ARQ
    b. CRC
    c. Go-Back-N-ARQ
    d. Selective-Repeat-ARQ