AWS - EC2 FundamentalsWhich of the following is the correct way to describe On-Demand Instances pricing?APay per hour or second of usage with no long-term commitmentBPay a fixed monthly fee regardless of usageCPay only when the instance is stoppedDPay upfront for a reserved capacityCheck Answer
Step-by-Step SolutionSolution:Step 1: Understand On-Demand pricingOn-Demand Instances charge based on actual usage time, billed per hour or second, with no commitment.Step 2: Eliminate incorrect optionsFixed monthly fee and upfront payment apply to other models; paying only when stopped is incorrect.Final Answer:Pay per hour or second of usage with no long-term commitment -> Option AQuick Check:On-Demand = pay as you go [OK]Quick Trick: On-Demand = pay only for what you use [OK]Common Mistakes:Thinking On-Demand requires upfront paymentConfusing with Reserved pricingAssuming fixed monthly fee applies
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