Question # 3

a. Suppose you were developing a distributed multimedia conferencing application. Which of the following mechanisms would you choose to implement communication between processes in the applications, and why?

i) Stream sockets

ii) Datagram sockets

iii) RPC over streams sockets

iv) RPC over datagram sockets

b. Give explanation to the design choices that are relevant to decreasing the amount of reply data held at a server. Suppose the RR1~ protocol is in use. What is the length of time needed for servers to retain unacknowledged reply data? Do the servers have to continually send the reply in an attempt to obtain an acknowledgement?