Question 280
A campus protects internet entry but leaves sensitive research servers open to every internal department. Before changing security policy, what evidence should the engineer examine FIRST?
Explanation
Correct Answer
Inspect ingress and internal traffic paths, application dependencies, firewall capabilities, and current east-west allow rules. This checks the relevant condition before an engineer modifies production access or detection behavior. Perimeter inspection focuses north-south traffic; internal segmentation contains east-west lateral movement when workloads share a network. The controlled response would be: Place appropriate firewall or distributed policy enforcement around both internet-facing flows and lateral workload communications. Situation: A campus protects internet entry but leaves sensitive research servers open to every internal department.
Incorrect Answers
Inspect VPN event traces, IKE negotiation state, certificate or PSK errors, UDP 500/4500, and proposal mismatches. This evidence addresses FTD IKE negotiation failure isolation; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect ingress and internal traffic paths, application dependencies, firewall capabilities, and current east-west allow rules. Situation: A campus protects internet entry but leaves sensitive research servers open to every internal department.
Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters. This evidence addresses Inline IPS availability and bypass behavior; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect ingress and internal traffic paths, application dependencies, firewall capabilities, and current east-west allow rules. Situation: A campus protects internet entry but leaves sensitive research servers open to every internal department.
Inspect application detectors, URL category verdicts, rule conditions, encrypted-session visibility, and identity matches. This evidence addresses Application visibility control and URL filtering; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect ingress and internal traffic paths, application dependencies, firewall capabilities, and current east-west allow rules. Situation: A campus protects internet entry but leaves sensitive research servers open to every internal department.


