Answer-first summary for fast verification
Answer: On-Demand Instances only
The correct answer is B: On-Demand Instances only. This is because On-Demand Instances do not require any long-term commitment and allow the company to pay for compute capacity by the hour or second with no long-term commitments. This flexibility helps optimize costs based on actual user demand rather than pre-purchasing capacity (like Reserved Instances) or risking availability (like Spot Instances).
Author: LeetQuiz Editorial Team
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A company uses EC2 instances within an Auto Scaling group for their web application, which scales based on demand. To optimize cost without a long-term commitment, which EC2 purchasing option should be recommended?
A
Dedicated Instances only
B
On-Demand Instances only
C
On-Demand and Spot Instances mix
D
On-Demand and Reserved Instances mix
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