What is the MOST appropriate AWS solution to use spare EC2 capacity at steep discount for fault-tolerant batch?
Multiple choice — select one answer
Answer choices
Architectural breakdown & explanation
Spot offers unused capacity at lower prices.
Correct answer(s): c. Amazon EC2 Spot Instances
Exam domain: Domain 4: Design Cost-Optimized Architectures (18% weight on the official guide).
Official documentation & study links
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