Topic 1 Question 146
A company runs a stateless web application in production on a group of Amazon EC2 On-Demand Instances behind an Application Load Balancer. The application experiences heavy usage during an 8-hour period each business day. Application usage is moderate and steady overnight. Application usage is low during weekends. The company wants to minimize its EC2 costs without affecting the availability of the application. Which solution will meet these requirements?
Use Spot Instances for the entire workload.
Use Reserved Instances for the baseline level of usage. Use Spot instances for any additional capacity that the application needs.
Use On-Demand Instances for the baseline level of usage. Use Spot Instances for any additional capacity that the application needs.
Use Dedicated Instances for the baseline level of usage. Use On-Demand Instances for any additional capacity that the application needs.
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- 正解だと思う選択肢: B
In the Question is mentioned that it has o Demand instances...so I think is more cheapest reserved and spot
👍 11rob742022/11/01 Answer is B: Reserved is cheaper than on demand the company has. And it's meet the availabilty (HA) requirement as to spot instance that can be disrupted at any time. PRICING BELOW. On-Demand: 0% There’s no commitment from you. You pay the most with this option. Reserved : 40%-60%1-year or 3-year commitment from you. You save money from that commitment. Spot 50%-90% Ridiculously inexpensive because there’s no commitment from the AWS side.
👍 7Qjb8m9h2022/12/12- 正解だと思う選択肢: C
I think C should be corrected.
👍 4TaiTran19942022/10/31
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