Best Audit Procedure to Determine Firewall Compliance

B.

To determine whether a firewall is configured in compliance with the organization's security policy, the BEST audit procedure would be reviewing the parameter settings.

Explanation:

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. The firewall is an important control for enforcing an organization's security policy. To ensure that the firewall is configured in compliance with the organization's security policy, an auditor can use several audit procedures, such as reviewing the system log, interviewing the firewall administrator, reviewing actual procedures, and reviewing the parameter settings.

Reviewing the system log may provide information about the firewall's activity and whether any security policy violations have occurred, but it may not provide information about the actual configuration of the firewall or whether it is configured in compliance with the security policy.

Interviewing the firewall administrator may provide insights into the administrator's understanding of the security policy, but it may not provide evidence of the actual configuration of the firewall.

Reviewing the actual procedures may provide evidence of how the firewall is configured and whether it is in compliance with the security policy. However, it may not provide a complete picture of the firewall's configuration, especially if the procedures are incomplete or outdated.

Therefore, the BEST audit procedure to determine whether a firewall is configured in compliance with the organization's security policy is reviewing the parameter settings. This audit procedure involves reviewing the configuration parameters of the firewall to determine whether they comply with the organization's security policy. The auditor can use the security policy as a benchmark and compare the firewall's parameter settings to the policy's requirements. If the firewall's parameter settings comply with the security policy, the auditor can conclude that the firewall is configured in compliance with the organization's security policy.