Operators need early warning that the city’s multi-AZ web tier is degrading. Which HA operations approach fits?
Select an answer to reveal the explanation.
Short Explanation
If the ALB is coughing up 5xx or targets go unhealthy, that’s your early smoke alarm—watch those metrics, not the town Twitter feed.
Full Explanation
ALB HTTP 5xx rates and unhealthy host counts are direct signals of web-tier health and should drive CloudWatch alarms for HA operations. Citizen social media, unrelated S3 size, or bastion CPU alone are poor substitutes for load balancer and target health metrics.