Regularly reviewing firewall rules ensures that outdated, redundant, or overly permissive rules are identified and removed.
* Reduced Attack Surface:Unnecessary or outdated rules may open attack vectors.
* Compliance and Policy Adherence:Ensures that only authorized communication paths are maintained.
* Performance Optimization:Reducing rule clutter improves processing efficiency.
* Minimizing Misconfigurations:Prevents rule conflicts or overlaps that could compromise security.
Incorrect Options:
* B. Identifying blocked traffic to permit:The review's primary goal is not to enable traffic but to reduce unnecessary rules.
* C. Ensuring correct rule order:While important, this is secondary to identifying obsolete rules.
* D. Correcting administrator mistakes:Though helpful, this is not the main purpose of regular reviews.
Exact Extract from CCOA Official Review Manual, 1st Edition:
Refer to Chapter 5, Section "Firewall Management," Subsection "Rule Review Process" - The primary reason for reviewing firewall rules regularly is to eliminate rules that are no longer necessary.