Design High-Performing Architectures Practice Question

Question

For a mobile application backend, an architect is reviewing EC2 Auto Scaling requirement set 9. Which design choice best fits the requirement while following AWS architectural best practices?

Answer choices

1. A. Scale instances across multiple availability zones using target tracking policies.
2. B. Place all components on a single large instance to simplify troubleshooting.
3. C. Use long-lived access keys in application configuration so services can call AWS APIs directly.
4. D. Disable monitoring until the workload reaches steady production traffic.

Correct Answer

A. Scale instances across multiple availability zones using target tracking policies.

Explanation

The best answer applies EC2 Auto Scaling: scale instances across multiple Availability Zones using target tracking policies. The other options increase operational risk, weaken security, or remove observability that an AWS Solutions Architect should preserve.

Question details

• Difficulty: easy
• Domain: Design High-Performing Architectures
• Objective: EC2 Auto Scaling

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