B. On-Demand Instances
"We recommend that you use On-Demand Instances for applications with short-term, irregular workloads that cannot be interrupted."
"There is no long-term commitment required when you purchase On-Demand Instances. You pay only for the seconds that your On-Demand Instances are in the running state, with a 60-second minimum."
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-on-demand-instances.html
Since the instances cannot be interrupted, Spot Instances cannot be used. On-Demand Instances do not provide any discounts or benefits for long-term usage. Compute Savings Plans and Convertible Reserved Instances offer cost savings for longer-term usage.
However, since the instances are only run for 3 hours each week, it may be more cost-effective to use On-Demand Instances rather than purchasing any instance reservation or savings plan.
Therefore, the MOST cost-effective instance purchasing option for this requirement is B. On-Demand Instances.
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Pranava_GCP
1 year, 9 months agoGuru4Cloud
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