Final answer:
The Time-Wait timer waits for FIN packets in a TCP connection and has a default value of around 10 minutes. It ensures a clean connection termination and handles any delayed packets.
Step-by-step explanation:
The Time-Wait timer is responsible for waiting for FIN (finish) packets in a Transmission Control Protocol (TCP) connection. The default value for the Time-Wait timer is typically around 10 minutes. This timer ensures that the connection is terminated cleanly and all the remaining data packets have been properly sent and acknowledged, preventing possible confusion in case duplicate packets are still in the network. During the TCP connection teardown process, after the host has sent and received a FIN packet, the connection enters the TIME-WAIT state to ensure that the other end has acknowledged the FIN packet and to wait for any stray packets that may arrive from a delayed network path.