Cloud Computing Amazon EC2 and EBS 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?

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?

Amazon EC2 and EBS

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.

Answer: C

Cloud Computing

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?

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?

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