Which of the following is a common type of network firewall?

The correct answer is C. All of the above. All three listed options are recognized, distinct types of network firewalls. A packet filtering firewall (D) inspects individual packets based on IP addresses, ports, and protocols - the simplest and oldest type. A stateful firewall (B) tracks the state of active connections…

Network Security Concepts

Question

Options

AApplication firewall
BStateful firewall
CAll of the above
DPacket filtering firewall

How the community answered

(50 responses)

A
4% (2)
B
2% (1)
C
92% (46)
D
2% (1)

Explanation

All three listed options are recognized, distinct types of network firewalls. A packet filtering firewall (D) inspects individual packets based on IP addresses, ports, and protocols - the simplest and oldest type. A stateful firewall (B) tracks the state of active connections and makes decisions based on the context of traffic, not just individual packets. An application firewall (A) - also called a layer 7 or WAF (Web Application Firewall) - inspects traffic at the application protocol level to detect and block application-specific attacks. Each represents a generation or layer of firewall technology, and all are common in enterprise environments.

Topics

#Firewall types#Network security#Packet filtering#Stateful inspection

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