Which of the following types of firewalls can perform deep packet inspection and intrusion detection?1 pointStateless firewallNext generation firewall (NGFW)Stateful firewallDocumented firewall

The type of firewall that can perform deep packet inspection and intrusion detection is the Next Generation Firewall (NGFW).

Here's why:

1. Stateless Firewall: This type of firewall monitors network traffic and restricts or blocks packets based on source and destination addresses or other static values. It's not designed to do deep packet inspection or intrusion detection.

2. Next Generation Firewall (NGFW): This type of firewall includes the basic functionalities of the first-generation and second-generation firewalls (stateless and stateful), but they also include other functionalities like deep packet inspection, intrusion detection system (IDS), and intrusion prevention system (IPS). So, NGFW can perform deep packet inspection and intrusion detection.

3. Stateful Firewall: This type of firewall, also known as a dynamic packet filtering, is a firewall technology that monitors the state of active connections and uses this information to determine which network packets to allow through. While it's more advanced than a stateless firewall, it doesn't inherently include deep packet inspection or intrusion detection.

4. Documented Firewall: There's no such type as a "Documented Firewall" in the context of network security. It seems like a misnomer or a typo.

So, the answer is Next Generation Firewall (NGFW).