AWS Certified Cloud Practitioner
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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?
Real Exam
Community
RRitesh
A
On-Demand Instances
B
Dedicated Instances
C
Spot Instances
D
Reserved Instances
Explanation:
Explanation
Spot Instances are the most cost-effective option for this scenario because:
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Interruptible workload: The application testing can be interrupted, which perfectly matches the nature of Spot Instances. AWS can reclaim Spot Instances with a 2-minute warning when capacity is needed elsewhere.
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Cost savings: Spot Instances offer up to 90% discount compared to On-Demand pricing, making them the most cost-effective option for fault-tolerant, flexible workloads.
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Testing environment: For test environments that don't require continuous operation, Spot Instances provide significant cost savings while still allowing the testing to proceed.
Why not the other options?
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On-Demand Instances: Most expensive option, best for short-term, unpredictable workloads that cannot be interrupted.
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Dedicated Instances: Physical servers dedicated to your use, most expensive option, not cost-effective for testing.
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Reserved Instances: Require 1-3 year commitment for discounted pricing, not suitable for temporary testing workloads.
Key takeaway: When workloads are flexible, interruptible, and fault-tolerant, Spot Instances provide the best cost savings while still meeting the functional requirements.
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