A sender is transmitting data using a window size of 4. If the sender receives an ACK for packet 2, what is the next packet to be sent?
Q1. A sender is transmitting data using a window size of 4. If the sender receives an ACK for packet 2, what is the next packet to be sent?
Answer: Packet 5
Explanation: The sender's window size is 4, and it has received an ACK for packet 2, so it will send packets 5, 6, 7, and 8.