Using the same assumptions that are used for Figure 16.11, plot line utilization as a function of P, the probability that a single frame is in error for the following errorcontrol techniques:

a. Stop-and-wait

b. Go-back-N with W = 7

c. Go-back-N with W = 127

d. Selective reject with W = 7

e. Selective reject with W = 127 Do all of the preceding for the following values of a: 0.1, 1, 10, 100. Draw conclusions about which technique is appropriate for various ranges of a.