Topic 1 Question 290
A company hosts a web application on multiple Amazon EC2 instances. The EC2 instances are in an Auto Scaling group that scales in response to user demand. The company wants to optimize cost savings without making a long-term commitment.
Which EC2 instance purchasing option should a solutions architect recommend to meet these requirements?
Dedicated Instances only
On-Demand Instances only
A mix of On-Demand Instances and Spot Instances
A mix of On-Demand Instances and Reserved Instances
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In my opinion, it is C, on demand instances and spot instances can be in a single auto scaling group.
👍 3minglu2023/02/19In this scenario, a mix of On-Demand Instances and Spot Instances is the most cost-effective option, as it can provide significant cost savings while maintaining application availability. The Auto Scaling group can be configured to launch Spot Instances when the demand is high and On-Demand Instances when demand is low or when Spot Instances are not available. This approach provides a balance between cost savings and reliability.
👍 3NolaHOla2023/02/20- 正解だと思う選択肢: C
To optimize cost savings without making a long-term commitment, a mix of On-Demand Instances and Spot Instances would be the best EC2 instance purchasing option to recommend. By combining On-Demand and Spot Instances, the company can take advantage of the cost savings offered by Spot Instances during periods of low demand while maintaining the reliability and stability of On-Demand Instances during periods of high demand. This provides a cost-effective solution that can scale with user demand without making a long-term commitment.
👍 1LuckyAro2023/02/20
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