Question

Difficulty: EasyCost-Optimized Compute Selection and Purchasing Strategies

A company wants to reduce its compute costs for a workload running on Amazon EC2, AWS Fargate, and AWS Lambda. Additionally, the workload uses Amazon RDS for its database layer. The company decides to purchase a Compute Savings Plan. To which of the following resources will the Compute Savings Plan discounts apply?

  1. Amazon EC2 instances, AWS Fargate tasks, and AWS Lambda functionsAnswer
  2. B
    Amazon EC2 instances, AWS Fargate tasks, and Amazon RDS DB instances
  3. C
    Amazon RDS DB instances, Amazon DynamoDB tables, and Amazon Redshift clusters
  4. D
    Amazon EC2 instances, Amazon EBS volumes, and Amazon RDS DB instances

Answer

Amazon EC2 instances, AWS Fargate tasks, and AWS Lambda functions
The correct option is the one specifying Amazon EC2, AWS Fargate, and AWS Lambda. Compute Savings Plans provide the most flexibility and automatically apply to usage across these three compute services regardless of instance family, size, OS, or region.

Step-by-Step Solution

1
Identify the services included in the company's workload.
The workload consists of Amazon EC2, AWS Fargate, AWS Lambda, and Amazon RDS.
To determine which of these services are eligible for Compute Savings Plans discounts.
2
Analyze the coverage scope of a Compute Savings Plan.
Compute Savings Plans apply to Amazon EC2, AWS Fargate, and AWS Lambda.
To match the workload services against the actual scope of Compute Savings Plans.
3
Exclude services that are not covered under Compute Savings Plans.
Amazon RDS is a database service and is excluded from Compute Savings Plans.
RDS requires RDS Reserved Instances, not Compute Savings Plans, to achieve discounts.

Key Concept

Compute Savings Plans apply automatically to EC2, Fargate, and Lambda usage, but do not apply to non-compute services such as RDS, DynamoDB, or EBS.
Estimated Time:45s
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