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ISACA Certified Information Security Manager · Isaca
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The correct answer is C. A validation of the current firewall rule set. Explanation: Among the options provided, validating the current firewall rule set is the best method for determining whether a firewall has been configured to provide a comprehensive perimeter defense. Here's why this option is the best method: C. A validation of the current firewall rule set: This involves reviewing and analyzing the existing firewall rules to ensure they align with the organization's security policies and objectives. By validating the rule set, you can identify any misconfigurations, unnecessary rules, or potential security gaps. This method directly assesses the effectiveness of the firewall's configuration in providing comprehensive perimeter defense.
C. A validation of the current firewall rule set