Problem Statement
What is the main function of a Web Application Firewall (WAF)?
Explanation
A Web Application Firewall (WAF) is designed to protect web applications by inspecting HTTP/HTTPS traffic, enforcing rules to block attacks like SQL Injection, Cross-Site Scripting (XSS), and other OWASP Top Ten threats. It sits between the client and application server and reduces application-layer risk. Including WAF knowledge shows you understand application security controls, not just network ones.
