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AWS Certified Solutions Architect study material · question 481 of 500

Which two savings can a single Auto Scaling group combine? Choose two.

  1. Reserved Instance or Savings Plans discounts on the On-Demand portion
  2. Free-tier hours applied to every instance
  3. Volume discounts negotiated per Availability Zone
  4. Spot Instance discounts on part of the capacity
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Answer: D. Spot Instance discounts on part of the capacity
A. Reserved Instance or Savings Plans discounts on the On-Demand portion

A group can launch several instance types and mix Spot with On-Demand, so both kinds of discount apply within one group.

Source: What is Amazon EC2 Auto Scaling? (Amazon Web Services) — Multiple instance types and purchase options

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