On-call engineers for a public-health clinic portal still reboot unhealthy EC2 hosts by hand after paging. Leadership wants self-healing instead of manual intervention. Which change best enables that elastic reliability feature?
Select an answer to reveal the explanation.
Short Explanation
Paging a human to press reboot is last century for a clinic portal. Let health checks kick bad hosts out and spin fresh ones—self-healing beats heroics at 2 a.m.
Full Explanation
Self-healing patterns rely on load balancer and Auto Scaling health checks to replace failed instances automatically. That reduces MTTR for civic portals compared with manual reboot runbooks. Disabling health checks, pinning sessions, or only lengthening pages preserve manual toil and prolong outages.