Question 810
A deployed environment still does not meet the original requirement: An Application Load Balancer intermittently forwards traffic to unhealthy containers after their readiness endpoint fails. What was most likely overlooked in the original design?
Explanation
Correct Answer
This is the technical design error aligned with the unmet requirement. Load balancer health checks must match actual application readiness rather than superficial liveness. The appropriate correction is: Correct target group health checks and deployment deregistration timing based on actual readiness semantics. The control should then be tested by verifying that Unhealthy containers leave active target selection promptly while healthy targets continue receiving requests.
Incorrect Answers
The application is exposed to one database host or zonal compute failure. The stated evidence instead indicates: Health checks use an unrelated always-200 endpoint that does not reflect the service readiness.
Administrators run sensitive maintenance scripts with no enforced approval or trail. The stated evidence instead indicates: Health checks use an unrelated always-200 endpoint that does not reflect the service readiness.
Kubernetes deployment treats process startup as adequate evidence of request readiness. The stated evidence instead indicates: Health checks use an unrelated always-200 endpoint that does not reflect the service readiness.