A company needs an Amazon EC2 instance for a rightsized database server that must run constantly for 1 year.
Which EC2 instance purchasing option will meet these requirements MOST cost-effectively?
A. Standard Reserved Instance
B. Convertible Reserved Instance
C. On-Demand Instance
D. Spot Instance
Which EC2 instance purchasing option will meet these requirements MOST cost-effectively?
A. Standard Reserved Instance
B. Convertible Reserved Instance
C. On-Demand Instance
D. Spot Instance