Final answer:
Three packets are exchanged during association termination: a termination request, an acknowledgment from the server, and an acknowledgment from the client.
Step-by-step explanation:
During association termination, three packets are exchanged between the client and the server. The first packet is a termination request sent by the client to the server. This packet contains information about the number of data chunks sent by the client (7600) and the number of data chunks received by the server (570). The second packet is an acknowledgment sent by the server to the client, confirming the termination request. The third packet is another acknowledgment sent by the client to the server, acknowledging the termination.