Question

During a standard TCP connection teardown using the four-way handshake, which sequence of flag exchanges correctly represents a client-initiated closure?

Q: Answer-During a standard TCP connection teardown using the four-way handshake, which sequence of flag excha...

In the standard four-way close, the client sends a FIN to indicate it has no more data. The server immediately ACKs it this is a half-close the server can still send data. Once the server also finishes sending data, it sends its own FIN, which the client ACKs, fully terminating the connection.