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CheckPoint^® CCSA NG (CheckPoint Certified Security Administrator)

FireWall - Stateful Inspection

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Q1. Which of the following Firewall technologies is considered most secure and flexible?

A. Packet Filters

B. Stateful Inspection

C. Application Layer Gateways

D. Authentication Servers

Correct Answer: B.

Explanation:

A firewall implemented with stateful inspection technology has several advantages over packet filter. As seen below, stateful inspection technology makes use of all communication information, communication derived state, application derived state, and also able to manipulate information.
                                                Packet Filters     Application Layer Gateway           Stateful Inspection
Communication Information              Partial  usage              Partial usage                                   Yes
Communication Derived State              No                           Partial usage                                   Yes
Application Derived State                     No                           Yes                                                Yes
Information Manipulation                    No                           Yes                                                Yes

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CheckPoint® CCSA NG (CheckPoint Certified Security Administrator)

FireWall - Stateful Inspection

CheckPoint^® CCSA NG (CheckPoint Certified Security Administrator)