Elastic Compute Cloud
Your company has migrated their production environment into AWS VPC 6 months ago. As a cloud architect, you are required to revise the infrastructure and ensure that it is cost-effective in the long term. There are more than 50 EC2 instances that are up and running all the time to support the business operation. What can you do to lower the cost?
A. Reserved instances
B. On-demand instances
C. Spot instances
D. Regular instances
A. Reserved instances
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.
To understand more on reserved instances, please visit the below URL:
https://aws.amazon.com/ec2/pricing/reserved-instances/
