A developer created a new application that uses Spot Fleet for a variety of instance families across multiple Availability Zones. What should the developer do to ensure that the Spot Fleet is configured for cost optimization?
A.
Deploy a capacityOptimized allocation strategy for provisioning Spot Instances.
B.
Ensure instance capacity by specifying the desired target capacity and how much of that capacity must be On-Demand.
C.
Use the lowestPrice allocation strategy with InstancePoolsToUseCount in the Spot Fleet request.
D.
Launch instances up to the Spot Fleet target capacity or the maximum acceptable payment amount.
InstancePoolsToUseCount
The Spot Instances are distributed across the number of Spot capacity pools that you specify. This parameter is valid only when used in combination with lowest-price.
Answer is C
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-spot-fleet-works.html
To optimize the costs for your use of Spot Instances, specify the lowestPrice allocation strategy so that Spot Fleet automatically deploys the least expensive combination of instance types and Availability Zones based on the current Spot price.
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