A company has an uninterruptible application that runs on Amazon EC2 instances. The application constantly processes a backlog of files in an Amazon Simple Queue Service (Amazon SQS) queue. This usage is expected to continue to grow for years. What is the MOST cost-effective EC2 instance purchasing model to meet these requirements? A. Spot Instances B. On-Demand Instances C. Savings Plans D. Dedicated Hosts  Correct Answer: C This question is in CLF-C02 exam For getting AWS Certified Cloud Practitioner Certificate
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