Question 7 (12 points) The reliable data transfer, or rdt, protocols we covered in class provide reliable in-order data delivery with duplicate detection. (a) What mechanism(s) used by rdt protocols cause duplicates to be generated? Explain. (2 points) (b) What mechanism(s) used by rdt protocols detect duplicates? Explain. (2 points) (c) rdt protocols can recover from two types of network losses. What mechanism(s) are used to recover from each type of loss? Explan. (3 points) (d) What is the retransmission timeout, also known as RTO? (2 points) (e) In class we discussed why retransmission timers are critical to the performance of reliable data transfer. Why are they set as a function of the RTT? (3 points) Question 7 (12 points) The reliable data transfer, or rdt, protocols we covered in class provide reliable in-order data delivery with duplicate detection. (a) What mechanism(s) used by rdt protocols cause duplicates to be generated? Explain. (2 points) (b) What mechanism(s) used by rdt protocols detect duplicates? Explain. (2 points) (c) rdt protocols can recover from two types of network losses. What mechanism(s) are used to recover from each type of loss? Explan. (3 points) (d) What is the retransmission timeout, also known as RTO? (2 points) (e) In class we discussed why retransmission timers are critical to the performance of reliable data transfer. Why are they set as a function of the RTT? (3 points)