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Question 218 - CLF-C02 discussion

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A company needs to host a web server on Amazon EC2 instances for at least 1 year. The web server cannot tolerate interruption.

Which EC2 instance purchasing option will meet these requirements MOST cost-effectively?

A.
On-Demand Instances
Answers
A.
On-Demand Instances
B.
Partial Upfront Reserved Instances
Answers
B.
Partial Upfront Reserved Instances
C.
Spot Instances
Answers
C.
Spot Instances
D.
No Upfront Reserved Instances
Answers
D.
No Upfront Reserved Instances
Suggested answer: B

Explanation:

The most cost-effective EC2 instance purchasing option for the company that needs to host a web server on Amazon EC2 instances for at least 1 year and cannot tolerate interruption is Partial Upfront Reserved Instances. Reserved Instances are a pricing model that offer significant discounts compared to On-Demand Instances in exchange for a commitment to use a specific amount of compute capacity for a fixed period of time (1 or 3 years). Partial Upfront Reserved Instances require customers to pay a portion of the total cost upfront, and the remaining cost in monthly installments over the term. This option offers a lower effective hourly rate than No Upfront Reserved Instances, which require no upfront payment but have higher monthly payments. On-Demand Instances and Spot Instances are not the best options for the company. On-Demand Instances are a pricing model that offer the most flexibility and no long-term commitment, but have the highest hourly rate. Spot Instances are a pricing model that offer the lowest cost, but are subject to interruption based on supply and demand34

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asked 16/09/2024
Arnaldo Martinez 2-30793
42 questions
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