Question 1010
At a financial services branch, a test team is validating a change after this incident: A threat team confuses Zone Protection with a classified DoS policy and expects per-destination server thresholds from the interface protection profile alone. What evidence most directly verifies the intended outcome?
Explanation
Correct Answer
Controlled traffic to the protected VIP triggers its intended service-specific threshold action. This evidence directly tests the intended corrective action: Use the appropriate dedicated DoS Protection policy and profiles in addition to required Zone Protection. It confirms the failure mechanism—Zone-level flood defenses and classified service protection have different enforcement scopes.—has been addressed in the actual affected flow.
Incorrect Answers
A controlled SYN/UDP test to the new VIP triggers appropriate protection and the retired object is unused. This would verify resolution of a different case: A datacenter updates the public VIP for an application but leaves its DoS rule bound to the retired address object. It does not show that the reported issue was fixed or that its intended action—Use the appropriate dedicated DoS Protection policy and profiles in addition to required Zone Protection.—worked.
The noisy tenant is limited without denying healthy tenants' normal flows. This would verify resolution of a different case: A DoS profile uses an aggregate threshold for a multi-tenant address space but one noisy tenant exhausts all shared capacity. It does not show that the reported issue was fixed or that its intended action—Use the appropriate dedicated DoS Protection policy and profiles in addition to required Zone Protection.—worked.
The push validates successfully and intended supported flood protection works in a safe test. This would verify resolution of a different case: After a platform upgrade, a DoS mitigation setting is no longer supported on a particular firewall model but remains in a copied profile. It does not show that the reported issue was fixed or that its intended action—Use the appropriate dedicated DoS Protection policy and profiles in addition to required Zone Protection.—worked.