ExpertHard1 markMultiple Choice
AWS SAA-C03 · Question 43 · Domain 4.2: Compute Cost Optimization
A company has a steady-state web application running on Amazon EC2 instances. The application runs 24/7 and the company plans to keep it running for the next 3 years. They want to reduce compute costs as much as possible. They also want the flexibility to change instance families (e.g., from M5 to C5) if the application requirements change. <br/><br/>Which TWO purchasing options should they consider? (Select TWO.)
A company has a steady-state web application running on Amazon EC2 instances. The application runs 24/7 and the company plans to keep it running for the next 3 years. They want to reduce compute costs as much as possible. They also want the flexibility to change instance families (e.g., from M5 to C5) if the application requirements change. <br/><br/>Which TWO purchasing options should they consider? (Select TWO.)
Answer options:
A.
Standard Reserved Instances
B.
Convertible Reserved Instances
C.
Compute Savings Plans
D.
EC2 Instance Savings Plans
E.
Spot Instances
How to approach this question
Identify the long-term commitment models that allow changing instance families.
Full Answer
Compute Savings Plans<br/>Convertible Reserved Instances
Both Convertible Reserved Instances and Compute Savings Plans allow you to change the instance family during the term of the commitment. Standard RIs and EC2 Instance Savings Plans lock you into a specific instance family.
Common mistakes
Selecting Standard RIs or EC2 Instance Savings Plans, missing the 'flexibility to change instance families' requirement.
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