Question

A network analyst is inspecting a packet capture between a client and a web server. She sees the client send a packet with the SYN flag set, the server reply with a packet that has both SYN and ACK flags set, and the client then send a packet with the ACK flag set. Which process is she observing?

Accepted Answer

The TCP three-way handshake establishing a reliable connection

Answer

A UDP session being negotiated before data transfer

Answer

A SYN flood denial-of-service attack in progress

Answer

The TCP connection being gracefully terminated