Question 950
An incident-response script treats any nonempty JSON response as evidence that a blocking rule was successfully deployed. Which Cisco security control or operational response BEST addresses the stated need?
Explanation
Correct Answer
Call security appliance APIs with scoped tokens, supported methods, validated payloads, and explicit handling of HTTP failures. This control addresses the failure mechanism and narrows the enforcement boundary. A script's HTTP 200 response must be interpreted with its API contract; exceptions, authentication, and payload semantics need explicit checking. Confirm pre-change conditions using: Inspect API documentation, token scope, request headers, JSON schema, response status, and transaction logs. Situation: An incident-response script treats any nonempty JSON response as evidence that a blocking rule was successfully deployed.
Incorrect Answers
Choose route-based IPsec tunnels when dynamic routed topologies need predictable overlay interfaces and matched security policies. This response applies to Route-based versus policy-based VPN design, not the controlling requirement in this case. Route-based VPN separates routing decisions from the cryptographic tunnel interface whereas policy-based VPN relies on matching crypto traffic definitions. For this scenario, the targeted action is: Call security appliance APIs with scoped tokens, supported methods, validated payloads, and explicit handling of HTTP failures. Situation: An incident-response script treats any nonempty JSON response as evidence that a blocking rule was successfully deployed.
Implement safe automation with pre-change state capture, idempotent desired configuration, audit records, and validation after deployment. This response applies to Idempotent policy automation and rollback, not the controlling requirement in this case. Blind retries of security policy POST requests can create duplicate or contradictory rules; idempotency and change tracking protect consistency. For this scenario, the targeted action is: Call security appliance APIs with scoped tokens, supported methods, validated payloads, and explicit handling of HTTP failures. Situation: An incident-response script treats any nonempty JSON response as evidence that a blocking rule was successfully deployed.
Constrain compromised API credentials through scoped permissions, rotation, behavior alerts, and incident review rather than assuming encrypted transport prevents misuse. This response applies to Cloud API breach and lateral movement, not the controlling requirement in this case. Encryption in transit protects a channel but does not limit an authorized-looking API request carrying a stolen bearer token. For this scenario, the targeted action is: Call security appliance APIs with scoped tokens, supported methods, validated payloads, and explicit handling of HTTP failures. Situation: An incident-response script treats any nonempty JSON response as evidence that a blocking rule was successfully deployed.


