Problem 5 Imagine that client A needs to send 4 messages reliably to a server B over an unreliable network layer. Assume that A and B use the alternating bit protocol (rdt 3.0). Describe graphi- cally...

Extracted text: Problem 5 Imagine that client A needs to send 4 messages reliably to a server B over an unreliable network layer. Assume that A and B use the alternating bit protocol (rdt 3.0). Describe graphi- cally (i.e. draw a labeled diagram of) the sequence of message exchanges resulting when the 2nd message send is lost, and the ack for the 3rd message send is corrupted.