What is the MOST appropriate AWS solution to automatically replace unhealthy EC2 instances in a group?
Multiple choice — select one answer
Answer choices
Architectural breakdown & explanation
Auto Scaling maintains desired capacity using health checks.
Correct answer(s): d. Amazon EC2 Auto Scaling with ELB
Exam domain: Domain 1: Design Resilient Architectures (30% weight on the official guide).
Official documentation & study links
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