A client connects to a Web server. Which component of this HTTP connection is not examined by a stateful firewall?

A client connects to a Web server. Which component of this HTTP connection is not examined by a stateful firewall?

• the source IP address of the client traffic
• the destination port number of the client traffic
• the actual contents of the HTTP connection
• the source port number of the client traffic
  

  Answers Explanation & Hints: Stateful firewalls cannot prevent application layer attacks because they do not examine the actual contents of the HTTP connection.