A company needs to optimize the cost of its Amazon EC2 instances. The company also needs to change the type and family of its EC2 instances every 2-3 months.
What should the company do to meet these requirements?
A.
Purchase Partial Upfront Reserved Instances for a 3-year term.
B.
Purchase a No Upfront Compute Savings Plan for a 1-year term.
C.
Purchase All Upfront Reserved Instances for a 1-year term.
D.
Purchase an All Upfront EC2 Instance Savings Plan for a 1-year term.
The key considerations are:
The company needs flexibility to change EC2 instance types and families every 2-3 months. This rules out Reserved Instances which lock you into an instance type and family for 1-3 years.
A Compute Savings Plan allows switching instance types and families freely within the term as needed. No Upfront is more flexible than All Upfront.
A 1-year term balances commitment and flexibility better than a 3-year term given the company's changing needs.
With No Upfront, the company only pays for usage monthly without an upfront payment. This optimizes cost.
"EC2 Instance Savings Plans give you the flexibility to change your usage between instances WITHIN a family in that region. "
https://aws.amazon.com/savingsplans/compute-pricing/
Correct B.
To change 'Family' always Compute saving plan, right?
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