What are two differences and benefits of packet filtering, stateful firewalling, and deep packet inspections?

Packet filtering is capable of UDP state monitoring only, and stateful inspection can provide monitoring of TCP sessions.

Deep packet inspection is capable of malware blocking, and packet filtering is not.

Stateful inspection is capable of packet data inspections, and deep packet inspection is not.

Deep packet inspection operates up to Layer 7, and packet filtering operates on Layer 3 and 4 of OSI model.

Stateful inspection is capable of TCP state tracking, and deep packet inspection checks only TCP source and destination ports.