Question 320
During a FortiAnalyzer incident review, the team observes: A firewall change is suspected of increasing traffic through policy 41, and the team wants policy-specific evidence rather than a network-wide bandwidth total. Which ongoing safeguard best addresses the original risk?
Explanation
Correct Answer
Check policy-specific traffic baselines after major rule changes. This long-term control addresses the recurring risk. The technical reason is: Policy-focused aggregation reveals which rules handle observed sessions and bytes. A later acceptance test still needs to confirm: The changed policy shows the expected traffic trend and matching individual log records.
Incorrect Answers
This safeguard, “Pair volume widgets with collection-health indicators for operational decisions”, reduces a different source-defined risk: After a logging outage, FortiView reports a sudden reduction in sessions and managers call it successful traffic reduction. That risk depends on: An ingestion gap can make traffic summaries fall even if actual network activity remains constant. The recurring problem here is a firewall change is suspected of increasing traffic through policy 41, and the team wants policy-specific evidence rather than a network-wide bandwidth total. The originally selected control “Check policy-specific traffic baselines after major rule changes” is more specific because policy-focused aggregation reveals which rules handle observed sessions and bytes.
This safeguard, “Verify source telemetry prerequisites for every new dashboard widget”, reduces a different source-defined risk: A FortiView widget displaying top attack categories is empty because the connected FortiGate forwards only basic traffic logs, not security-profile events. That risk depends on: Threat widgets require eligible threat/security log data; ordinary traffic logs need not contain IPS or antivirus detections. The recurring problem here is a firewall change is suspected of increasing traffic through policy 41, and the team wants policy-specific evidence rather than a network-wide bandwidth total. The originally selected control “Check policy-specific traffic baselines after major rule changes” is more specific because policy-focused aggregation reveals which rules handle observed sessions and bytes.
This safeguard, “Attach IoC supporting records before recommending endpoint quarantine”, reduces a different source-defined risk: An IoC monitor flags a suspicious host, but the analyst wants to see associated web-filter detections and threat ratings rather than treat the icon as conclusive. That risk depends on: A visual threat rating summarizes evidence; the underlying events are needed for incident-level conclusions. The recurring problem here is a firewall change is suspected of increasing traffic through policy 41, and the team wants policy-specific evidence rather than a network-wide bandwidth total. The originally selected control “Check policy-specific traffic baselines after major rule changes” is more specific because policy-focused aggregation reveals which rules handle observed sessions and bytes.