Domain 3.4: Reliability Improvement — AWS SAP-C02 Practice Question 12

How to approach this question

Look for the standard AWS pattern for elasticity and self-healing (ASG + ALB).

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C.Place the EC2 instances in an Auto Scaling group behind an Application Load Balancer and configure target tracking scaling policies based on CPU utilization.✓ Correct

Place the EC2 instances in an Auto Scaling group behind an Application Load Balancer and configure target tracking scaling policies based on CPU utilization.

An Auto Scaling group ensures you have the correct number of EC2 instances available to handle the load. If an instance fails health checks, the ASG replaces it (self-healing).

Common mistakes

Choosing vertical scaling, which is a temporary fix and not self-healing.

An architect is reviewing a legacy application running on EC2 instances. The application frequently experiences CPU exhaustion, leading to downtime. The architect wants to implement a self-healing architecture. What is the BEST approach?

How to approach this question

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Common mistakes

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