Question

Consider the RDT 2.2 sender and receiver below, with FSM transitions labeled in red. Complete the sequence of transitions that the sender and receiver FSMs would make, to deliver two messages from sender to receiver, assuming no errors occur (including the ACK received at the sender for the second packet).

a) True
b) False

Answer 1

The subject is a sequence of FSM transitions in RDT 2.2 for sending and receiving two messages without errors in computer networking.

Step-by-step explanation:

The RDT 2.2 sender and receiver question refers to the concept of reliable data transfer used in computer networking. The FSM (Finite State Machine) included in the question indicates a protocol designed for ensuring that messages are delivered correctly over an unreliable channel.

In RDT 2.2, if no errors occur, the sender will go through a set of states from wait for a call from above to data transmission and receiving an ACK, while the receiver will go through the states of waiting for data and sending ACKs back.

The sequence for delivering two messages would involve the sender moving from sending the first data packet to receiving an ACK, then sending the second data packet, and receiving another ACK.

The receiver would correspondingly transition from waiting for the data, receiving the data packet, to sending an ACK for each of the two messages received.