AWS SAP-C02 · Question 30 · Domain 3.5: Cost Optimization
A data engineering team is using Amazon EMR to process large datasets. The clusters are currently running on On-Demand EC2 instances. The workloads are fault-tolerant, flexible in their completion time, and run periodically throughout the week. The team wants to significantly reduce compute costs without changing the application code. Which strategy is MOST cost-effective?
Answer options:
Use Amazon EC2 Spot Instances for the EMR task nodes and On-Demand instances for the core and master nodes.
Purchase EC2 Instance Savings Plans for all nodes in the EMR cluster.
Use Spot Instances for the master, core, and task nodes.
Migrate the workloads to AWS Lambda.
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