Question 120
During a privileged access assessment at Harbor Point Medical, engineers say that they resolved this finding: A long-lived cryptographic system has no plan for migration to quantum-resistant key establishment. Which result provides the STRONGEST acceptance evidence?
Explanation
Correct Answer
A controlled pilot negotiates supported algorithms and documents rollback and interoperability. This is the decisive evidence for the original problem: A long-lived cryptographic system has no plan for migration to quantum-resistant key establishment. It verifies that the intended corrective control—Inventory vulnerable algorithms and plan interoperable standards-based post-quantum or hybrid migration—works in the relevant environment; a completed change ticket alone would not prove the outcome at Harbor Point Medical.
Incorrect Answers
The negotiated security associations protect bidirectional traffic and are visible in VPN status. This would be relevant evidence for a different failure: Two remote offices require confidentiality and authenticated integrity for traffic traversing the public Internet, usually addressed by Configure standards-based IPsec using appropriate IKE authentication and encryption proposals. It does not demonstrate that the current problem at Harbor Point Medical was resolved. The specific required evidence is: A controlled pilot negotiates supported algorithms and documents rollback and interoperability.
Clients reject an untrusted chain while the correct service certificate succeeds. This would be relevant evidence for a different failure: A site serves TLS with a certificate from an untrusted issuer and clients bypass warnings, usually addressed by Deploy a valid certificate chain for the service name and enforce normal certificate validation. It does not demonstrate that the current problem at Harbor Point Medical was resolved. The specific required evidence is: A controlled pilot negotiates supported algorithms and documents rollback and interoperability.
A tunnel behind NAT establishes and carries protected traffic without ESP being dropped. This would be relevant evidence for a different failure: A NAT gateway changes IPsec peer addresses and native ESP traffic fails through the path, usually addressed by Use supported IPsec NAT traversal with UDP encapsulation and matching peer configuration. It does not demonstrate that the current problem at Harbor Point Medical was resolved. The specific required evidence is: A controlled pilot negotiates supported algorithms and documents rollback and interoperability.