Topic 1 Question 144
A company needs to continuously run an experimental workload on an Amazon EC2 instance and stop the instance after 12 hours.
Which instance purchasing option will meet this requirement MOST cost-effectively?
On-Demand Instances
Reserved Instances
Spot Instances
Dedicated Instances
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- 正解だと思う選択肢: A
The on-the-spot choice was C) Spot Instances, but after re-reading the question several times, I realized that the company needs a CONTINUOUSLY running workload for 12 hours. Spot Instances can be interrupted by AWS, making them less reliable.
👍 11geocis2024/06/22 - 正解だと思う選択肢: A
Key Sentence " needs to continuously run" - so continuously and most cost effective is On Demand
On-Demand Instances let you pay for compute capacity by the hour or second (minimum of 60 seconds) with no long-term commitments. This frees you from the costs and complexities of planning, purchasing, and maintaining hardware and transforms what are commonly large fixed costs into much smaller variable costs.
👍 4Cjroblese2024/02/07 continuously run and stop, so here you still need underlying data / EBS volume intact. On-demand is the option. Spot instance don't retain your data.
👍 4bd0099992024/02/15
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