Question

Your web application needs four instances to support steady traffic all of the time. On the last day of the month, the traffic triples. What is the most cost effective way to handle this pattern.

Answer 1

C. Reserved Instances provide cost savings when you can commit to running instances full time, such as to handle the base traffic. On-Demand Instances provide the flexibility to handle traffic spikes, such as on the last day of the month.

Step-by-step explanation:

1. Your web application needs four instances to support steady traffic nearly all of the time. On the last day of each month, the traffic triples. What is a cost-effective way to handle this traffic pattern?

A. Run 12 Reserved Instances all of the time.

B. Run four On-Demand Instances constantly, then add eight more On-Demand Instances on the last day of each month.

C. Run four Reserved Instances constantly, then add eight On-Demand Instances on the last day of each month.

D. Run four On-Demand Instances constantly, then add eight Reserved Instances on the last day of each month.

1. C. Reserved Instances provide cost savings when you can commit to running instances full time, such as to handle the base traffic. On-Demand Instances provide the flexibility to handle traffic spikes, such as on the last day of the month.