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If there is a requirement to host EC2 Instances in the AWS Cloud wherein the utilization is guaranteed to be consistent for a long period of time, which of the following would you utilize to ensure costs are minimized?
A
Reserved instances
B
On-demand instances
C
Spot instances
D
Regular instances
Explanation:
When you have instances that will be used continuously and throughout the year, the best option is to buy reserved instances. By buying reserved instances, you are actually allocated an instance for the entire year or the duration you specify with a reduced cost.
Key Points:
Reserved Instances provide significant cost savings (up to 75% compared to On-Demand pricing) for consistent, long-term workloads
On-Demand Instances are pay-as-you-go with no long-term commitment, suitable for unpredictable workloads
Spot Instances offer the lowest prices but can be interrupted with short notice, suitable for fault-tolerant workloads
Regular instances is not a standard AWS pricing term
For more on Reserved Instances, please visit: https://aws.amazon.com/ec2/pricing/reserved-instances/