Design Cost-Optimized Architectures Practice Question
Question
For a startup cost review, an architect is reviewing EC2 purchase options requirement set 15. Which design choice best fits the requirement while following AWS architectural best practices?
Answer choices
- A. Mix on-demand, reserved instances, savings plans, and spot based on workload flexibility.
- B. Place all components on a single large instance to simplify troubleshooting.
- C. Use long-lived access keys in application configuration so services can call AWS APIs directly.
- D. Disable monitoring until the workload reaches steady production traffic.
Correct Answer
A. Mix on-demand, reserved instances, savings plans, and spot based on workload flexibility.
Explanation
The best answer applies EC2 purchase options: mix On-Demand, Reserved Instances, Savings Plans, and Spot based on workload flexibility. The other options increase operational risk, weaken security, or remove observability that an AWS Solutions Architect should preserve.
Question details
- Difficulty: easy
- Domain: Design Cost-Optimized Architectures
- Objective: EC2 purchase options