Question 330
At Aspen Digital, a team reports that it corrected the following problem affecting advisory applications and shared files: Two application teams share the same routed infrastructure but must not exchange traffic by default. Which observation BEST verifies that the correction actually worked?
Explanation
Correct Answer
Inter-team traffic is blocked until an approved rule permits a specific flow. This is the decisive evidence for the original problem: Two application teams share the same routed infrastructure but must not exchange traffic by default. It verifies that the intended corrective control—Use separate VRFs or VLAN boundaries with explicit policy at inter-segment gateways—works in the relevant environment; a completed change ticket alone would not prove the outcome at Aspen Digital.
Incorrect Answers
A rogue offer on an access port is discarded and genuine clients obtain correct leases. This would be relevant evidence for a different failure: A campus switch accepts DHCP offers from an untrusted workstation acting as a rogue server, usually addressed by Enable DHCP snooping and mark only the legitimate DHCP uplinks as trusted. It does not demonstrate that the current problem at Aspen Digital was resolved. The specific required evidence is: Inter-team traffic is blocked until an approved rule permits a specific flow.
The controlled flood is rate-limited while normal broadcast services still function. This would be relevant evidence for a different failure: A broadcast storm on one access segment disrupts unrelated devices, usually addressed by Apply storm control with measured thresholds on relevant Layer 2 interfaces. It does not demonstrate that the current problem at Aspen Digital was resolved. The specific required evidence is: Inter-team traffic is blocked until an approved rule permits a specific flow.
A restricted tag-to-tag connection is denied and an allowed application flow succeeds. This would be relevant evidence for a different failure: A campus uses security group tags but enforcement devices accept traffic without matching identity-based contracts, usually addressed by Define SGT classification and enforce appropriate SGACL policy at supported points. It does not demonstrate that the current problem at Aspen Digital was resolved. The specific required evidence is: Inter-team traffic is blocked until an approved rule permits a specific flow.