Topic 1 Question 13
2 つ選択A company is running distributed computing software to manage a fleet of 20 Amazon EC2 instances for calculations. The fleet includes 2 control nodes and 18 task nodes to run the calculations. Control nodes can automatically start the task nodes. Currently, all the nodes run on demand. The control nodes must be available 24 hours a day, 7 days a week. The task nodes run for 4 hours each day. A SysOps administrator needs to optimize the cost of this solution. Which combination of actions will meet these requirements?
Purchase EC2 Instance Savings Plans for the control nodes.
Use Dedicated Hosts for the control nodes.
Use Reserved Instances for the task nodes.
Use Spot Instances for the control nodes. Use On-Demand Instances if there is no Spot availability.
Use Spot Instances for the task nodes. Use On-Demand Instances if there is no Spot availability.
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コメント(17)
Can't be "C" and "E" because they are contradictory. Both of these answers suggest two different solutions for "task nodes". People who are choosing "C" are thinking its directed to "control nodes", but it is not. Answer has to be A and E. I'd agree that control nodes should be reserved instances, (or "A") but that is not what "C" is proposing. It's a trick question.
👍 4Gomer2023/03/22The answers should have been RI's for the control nodes, since they are running 24/7 and spot instances for the task nodes.
👍 3princajen2022/09/01- 正解だと思う選択肢: AE
A&E because it asks for the most cost effective solution, EC2 instance savings plan is a better option than reserved instance.
👍 3Hello232022/09/02
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