Packet number 2318 is the one that contains a file that is extractable within Wireshark. This can be determined by the information provided in the packet details, which typically includes an HTTP GET request indicating the retrieval of a file, such as an image or document1.

Reflective XSS, also known as Non-Persistent XSS, occurs when an attacker sends a malicious script to a user through a web application, and the script is executed immediately in the user's browser without being stored on the server. This type of attack is typically carried out by including the malicious script in a URL, which is then sent to the victim. When the victim clicks on the link, the script runs in their browser, reflecting the attacker's actions without storing the payload for repeated use12. Reference:: OWASP Foundation's documentation on Cross-Site Scripting (XSS) provides detailed information on the different types of XSS attacks, including Reflective XSS

A TCP handshake is a three-way exchange of messages between a client and a server to establish a TCP connection. The client initiates the handshake by sending a SYN packet with a sequence number to the server.
The server responds with a SYN-ACK packet with its own sequence number and an acknowledgment number that is the client's sequence number plus one. The client completes the handshake by sending an ACK packet with an acknowledgment number that is the server's sequence number plus one. If the remote server is not receiving an SYN-ACK packet from the local server, it means that the TCP handshake is not completed and the connection is not established. This could be caused by various factors, such as network congestion, firewall rules, packet filtering, or misconfiguration of the TCP parameters on either end. References := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, page 177; TCP 3-Way Handshake Process
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