CLF-C02 Question 279
Single answerA company is launching a new application with an unknown level of demand. They want to minimize their upfront costs while ensuring they can scale quickly if traffic increases. Which AWS pricing model would be the most cost-effective and flexible for their compute resources?
- A
On-Demand Instances
- B
Reserved Instances
- C
Spot Instances
- D
Dedicated Hosts
Show answer and explanation
Correct answer: A
Explanation
On-Demand Instances are the best choice for this scenario because they provide the flexibility to handle unpredictable traffic without requiring upfront costs or long-term commitments. This aligns with the company's need to minimize costs while ensuring scalability.
- A. Correct.
On-Demand Instances are ideal for applications with unpredictable workloads, as they do not require long-term commitments or upfront payments. They allow the company to scale up or down based on demand, making them cost-effective and flexible.
- B. Incorrect.
Reserved Instances provide significant discounts for long-term commitments, but they are not suitable for applications with unknown demand, as they require upfront payment or a commitment to a specific usage level.
- C. Incorrect.
Spot Instances offer the lowest cost option but are not reliable for applications that require consistent availability. Spot Instances are best for workloads that can tolerate interruptions.
- D. Incorrect.
Dedicated Hosts are the most expensive option and are typically used to meet specific licensing or compliance requirements. They are not cost-effective for applications with unpredictable demand.