Repeat R12, hut now with the Selective Repeat Java applet. How are Selective Repeat and Go-Back-N different?

Data From Problem R12

Visit the Go-sack-N Java applet at the companion Web site.

a. Have the source send five packets, and then pause the animation before any of the five packets reach the destination. Then kill the first packet and resume the animation. Describe what happens.

b. Repeat the experiment, bin now let the first packet reach the destination and kill the first acknowledgment. Describe again what happens. 

c. Finally, try sending six packets. What happens?