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SAA-C03 · Question #556

A company runs its application by using Amazon EC2 instances and AWS Lambda functions. The EC2 instances run in private subnets of a VPC. The Lambda functions need direct network access to the EC2 ins

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Submitted by alyssa_d· Mar 4, 2026Design Cost-Optimized Architectures

Question

A company runs its application by using Amazon EC2 instances and AWS Lambda functions. The EC2 instances run in private subnets of a VPC. The Lambda functions need direct network access to the EC2 instances for the application to work. The application will run for 1 year. The number of Lambda functions that the application uses will increase during the 1-year period. The company must minimize costs on all application resources. Which solution will meet these requirements?

Options

  • APurchase an EC2 Instance Savings Plan. Connect the Lambda functions to the private sub-nets
  • BPurchase an EC2 Instance Savings Plan. Connect the Lambda functions to new public sub-nets
  • CPurchase a Compute Savings Plan. Connect the Lambda functions to the private subnets that
  • DPurchase a Compute Savings Plan. Keep the Lambda functions in the Lambda service VPC.

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