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A company has a test AWS environment. A company is planning on testing an application within AWS. The application testing can be interrupted and does not need to run continuously. Which Amazon EC2 purchasing option will meet these requirements MOST cost-effectively?
A
On-Demand Instances
B
Dedicated Instances
C
Spot Instances
D
Reserved Instances
Explanation:
Spot Instances are the most cost-effective option for this scenario because:
Cost Savings: Spot Instances offer up to 90% discount compared to On-Demand Instances
Interruptible Workloads: The application testing can be interrupted, which makes it perfect for Spot Instances that can be reclaimed by AWS with a 2-minute warning
Test Environment: For testing and development workloads that don't require continuous operation, Spot Instances provide the best price-performance ratio
Why not the other options:
On-Demand Instances: More expensive and designed for workloads that need guaranteed, uninterrupted capacity
Dedicated Instances: Most expensive option, designed for compliance requirements where you need physical isolation
Reserved Instances: Require 1-3 year commitment and are better suited for predictable, steady-state production workloads
Spot Instances are ideal for fault-tolerant, flexible applications like testing, batch processing, and analytics workloads where interruptions are acceptable.