Which three security features require the intrusion prevention system (IPS) engine to function? (Choose three.)

Web filter in flow-based inspection mode relies on the IPS engine to perform deep packet inspection for identifying and blocking malicious web content or categories based on signatures.

Antivirus in flow-based inspection utilizes the IPS engine to scan network traffic streams in real-time for known malware signatures and suspicious patterns.

DNS filter primarily inspects DNS queries and responses to block access to malicious domains and does not inherently require the full IPS engine for its core function.

Web application firewall (WAF) operates at the application layer to protect web servers and typically uses its own dedicated engine and rule sets, distinct from the core IPS engine's general threat inspection capabilities.

Application control performs deep inspection of network traffic to identify and manage applications based on their signatures and behaviors, a capability provided by the IPS engine.