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A company wants to migrate a critical application to AWS. The application has a short runtime. The application is invoked by changes in data or by shifts in system state. The company needs a compute solution that maximizes operational efficiency and minimizes the cost of running the application.
Which AWS solution should the company use to meet these requirements?

  • A. Amazon EC2 On-Demand Instances
  • B. AWS Lambda
  • C. Amazon EC2 Reserved Instances
  • D. Amazon EC2 Spot Instances
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Correct Answer: B
From: https://aws.amazon.com/lambda/ 1. Run code without provisioning or managing infrastructure. Simply write and upload code as a .zip file or container image. 2. Automatically respond to code execution requests at any scale, from a dozen events per day to hundreds of thousands per second. 3. Save costs by paying only for the compute time you use—by per-millisecond—instead of provisioning infrastructure upfront for peak capacity.

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