SAA-C03 · Question #52
A company is migrating its databases to Amazon RDS for PostgreSQL. The company is migrating its applications to Amazon EC2 instances. The company wants to optimize costs for long-running workloads…
The correct answer is D. Purchase Reserved Instances for a 3 year term with the All Upfront option for the Amazon RDS. The company needs to optimize costs for long-running RDS and EC2 workloads.
Question
A company is migrating its databases to Amazon RDS for PostgreSQL. The company is migrating its applications to Amazon EC2 instances. The company wants to optimize costs for long-running workloads. Which solution will meet this requirement MOST cost-effectively?
Options
- AUse On-Demand Instances for the Amazon RDS for PostgreSQL workloads. Purchase a 1 year
- BPurchase Reserved Instances for a 1 year term with the No Upfront option for the Amazon RDS
- CPurchase Reserved Instances for a 1 year term with the Partial Upfront option for the Amazon
- DPurchase Reserved Instances for a 3 year term with the All Upfront option for the Amazon RDS
How the community answered
(62 responses)- A2% (1)
- B2% (1)
- C3% (2)
- D94% (58)
Why each option
The company needs to optimize costs for long-running RDS and EC2 workloads.
On-Demand Instances are the most expensive option and do not offer significant cost optimization for long-running workloads.
Purchasing Reserved Instances for a 3-year term with an All Upfront payment option provides the deepest discount compared to shorter terms or other payment options, making it the most cost-effective solution for known long-running, stable workloads on both Amazon RDS and Amazon EC2 instances.
Concept tested: Reserved Instance pricing models for cost optimization
Source: https://aws.amazon.com/ec2/pricing/reserved-instances/
Community Discussion
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