Question

Difficulty: MediumInformation Technology and Cybersecurity

In network security architecture, a stateful packet inspection firewall evaluates network traffic solely based on individual packet headers (such as source IP and destination IP addresses) in isolation, without maintaining context or tracking state information about active transport-layer connections.

Answer: Answer

Answer

The statement is False. Stateful packet inspection firewalls keep track of active network connections and session state information to make filtering decisions, unlike stateless firewalls which inspect each packet in isolation.
The correct answer is False because stateful packet inspection firewalls maintain context across network sessions by monitoring connection states (such as NEW, ESTABLISHED, or RELATED) in a state table, whereas static/stateless firewalls inspect packets in isolation based solely on isolated header rules.

Step-by-Step Solution

1
Analyze the operational definition of stateless packet filtering firewalls.
Stateless firewalls inspect individual network packets based only on static header information like source/destination IP and port numbers without context of previous packets.
Establishing baseline knowledge of stateless firewall mechanisms.
2
Analyze the operational definition of stateful packet inspection (SPI) firewalls.
Stateful firewalls track the operational state of network connections (e.g., TCP connection establishment, data transfer, termination) using a state table.
Differentiating stateful firewall capabilities from stateless filtering.
3
Compare the statement's claim against the verified definition of stateful firewalls.
The statement incorrectly attributes stateless firewall behavior (evaluating packets in isolation without tracking context) to stateful firewalls.
Determining the factual validity of the stem statement.

Key Concept

Stateful vs. Stateless Firewall Architecture
Rate this question