Learn why Spot Instances are the best Amazon EC2 pricing model for stateless, fault-tolerant workloads. Save up to 90% on costs while running massively parallel computations.
Table of Contents
Question
A company has an application workload that is designed to be stateless and can withstand occasional interruptions. The application performs massively parallel computations. Which Amazon EC2 instance pricing model should the company choose to reduce costs?
A. On-Demand Instances
B. Spot Instances
C. Reserved Instances
D. Dedicated Instances
Answer
B. Spot Instances
Explanation
Spot Instances allow you to take advantage of unused EC2 capacity in the AWS cloud available at up to a 90% discount compared to On-Demand prices.
Spot Instances are the most cost-effective Amazon EC2 pricing model for workloads that are stateless, fault-tolerant, and can handle interruptions. They allow companies to utilize unused EC2 capacity at discounts of up to 90% compared to On-Demand pricing. This makes them ideal for applications like massively parallel computations, batch processing, or machine learning training, where occasional interruptions do not impact the overall outcome.
Why Spot Instances?
- Cost Savings: Spot Instances provide significant cost reductions, often up to 90%, making them the most economical choice for non-critical workloads.
- Interruption Tolerance: AWS can reclaim Spot Instances with a 2-minute notice if capacity is needed elsewhere. This is manageable for stateless applications or those designed to resume after interruptions.
- Scalability: They are well-suited for large-scale, parallel workloads that require substantial compute power but can operate flexibly.
For a workload that is stateless and can withstand occasional interruptions, Spot Instances are the optimal choice. They offer unmatched cost efficiency and are perfectly suited for massively parallel computations or other non-critical tasks.
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