Question 2 ( 25 points): [Chapter 23] Answer the following questions related to the FSMs for the Selective-Repeat protocol with m=7 bits. Assume the window size is 64 . (Figure 23.34): a. The sending machine is in the ready state with Sf=10 and Sn=15. What is the sequence number of the next packet to send? b. The sending machine is in the ready state with Sf=10 and Sn=15. The timer for packet 10 times out. How many packets are to be resent? What are their sequence numbers? c. The sending machine is in the ready state with Sf=10 and Sn=15. An ACK with ackNo =13 arrives. What are the next values of Sf and Sn ? What is the action in response to this event? d. The sending machine is in the blocking state with Sf=14 and Sn=21. What is the size of the window? e. The sending machine is in the blocking state with Sf=14 and Sn=21. An ACK with ackNo=14 arrives. Packets 15 and 16 have already been acknowledged. What are the next values of Sf and Sn ? What is the state of the sending machine? f. The receiving machine is in the ready state with Rn=16. The size of the window is 8 . A packet with sequence number 16 arrives. What is the next value of Rn ? What is the response of the machine to this event