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You tried to purchase a Convertible Reserved Instance but received an error. Which of the following is a likely cause?

medium📝 Debug Q6 of 15
AWS - Cost Optimization
You tried to purchase a Convertible Reserved Instance but received an error. Which of the following is a likely cause?
AYou selected an unsupported instance family for conversion
BYou did not specify a region
CYou chose a 1-year term instead of 3 years
DYou selected No Upfront payment option
Step-by-Step Solution
Solution:

  1. Step 1: Understand Convertible Reserved Instance restrictions

    Convertible RIs require selecting instance families that support conversion.

  2. Step 2: Identify common error cause

    Choosing an unsupported instance family causes purchase errors.

  3. Final Answer:

    You selected an unsupported instance family for conversion -> Option A

  4. Quick Check:

    Unsupported family causes errors = D [OK]
Quick Trick: Convertible RIs require supported instance families [OK]
Common Mistakes:
  • Ignoring region requirement
  • Confusing term length with error cause
  • Assuming payment option causes errors

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