SAP-C02 Question 566
Select 2A company is planning to migrate its on-premises infrastructure to AWS. They need to ensure efficient asset planning by determining the most cost-effective instance types for their workloads. The company has a diverse set of applications, including an analytics application with variable compute requirements, a database requiring consistent performance, and a development environment that is used sporadically. Which combination of instance types should they choose to optimize costs while meeting their requirements?
- A
Use On-Demand Instances for the analytics application, Reserved Instances for the database, and Spot Instances for the development environment.
- B
Use Spot Instances for the analytics application, Reserved Instances for the database, and On-Demand Instances for the development environment.
- C
Use Reserved Instances for the analytics application, Spot Instances for the database, and On-Demand Instances for the development environment.
- D
Use Elastic Compute Fleet for the analytics application, Reserved Instances for the database, and Spot Instances for the development environment.
- E
Use On-Demand Instances for all workloads to maintain flexibility and avoid long-term commitments.
Show answer and explanation
Correct answers: A, D
Explanation
Efficient asset planning involves choosing the right instance types based on workload characteristics. On-Demand Instances or Elastic Compute Fleet are suitable for the analytics application due to its variable compute requirements. Reserved Instances are ideal for the database as they provide consistent performance and cost savings. Spot Instances are a cost-effective option for sporadic usage, such as the development environment. This combination optimizes both performance and cost.
- A. Correct.
Correct. On-Demand Instances are suitable for the analytics application because their variable compute requirements can benefit from flexibility. Reserved Instances for the database ensure consistent performance and cost savings. Spot Instances for the development environment reduce costs since it's used sporadically.
- B. Incorrect.
Incorrect. Spot Instances for the analytics application are not ideal due to their variable availability, which may disrupt the workload. On-Demand Instances for the development environment are unnecessarily expensive given the sporadic usage.
- C. Incorrect.
Incorrect. Reserved Instances for the analytics application lack the flexibility required for variable compute requirements, while Spot Instances for the database do not provide the consistent performance needed.
- D. Correct.
Correct. Elastic Compute Fleet is an excellent fit for the analytics application as it can dynamically adjust resources based on the variable compute requirements. Reserved Instances for the database ensure consistent performance, and Spot Instances are a cost-effective choice for the sporadic development environment.
- E. Incorrect.
Incorrect. Using On-Demand Instances for all workloads is not cost-effective and does not align with the specific requirements of each workload.