Part 1. For each term on the left, identify the item on the right column that best describe its role/purpose in reliable data transfer (rdt) protocols. (Hint: There is a 1-to-1 correspondence.) a. Error detection 1. Communicates status to peer b. Feedback (ack) 2. Identifies duplicate packets c. Retransmission 3. Stores data for future use d. Sequence number 4. Identifies most combinations of flipped bits e. Timer 5. Enables rdt to recover from errors f. Buffering 6. Enables rdt to deal with lost packets Part 2. Demonstrate what you know about Reliable Data Transfer protocols! For each part af below, write a good sentence (or two) using the term listed and S, the sender of an rdt. a. Error detection b. Feedback (ack) c. Retransmission d. Sequence number e. Timer f. Buffering