AWS Certified Solutions Architect Associate SAA-C03 Practice Question
Your client has an application that is heavily involved in batch processing jobs, which are CPU-bound. These jobs run infrequently but require rapid completion when they do. The client is looking for a cost-effective solution that can handle these sporadic spikes in CPU demand without incurring costs when the instances are idle. Given these requirements, which Amazon EC2 instance option should the client use?
The EC2 Spot Instances are an appropriate solution as they can provide the necessary compute power for the batch processing jobs at a significantly reduced cost compared to On-Demand instances. However, because batch jobs can withstand interruptions, Spot Instances are ideal for this scenario - enabling the client to take advantage of the unused EC2 capacity in the AWS cloud at a potentially lower price. Using Reserved Instances may not be cost-effective due to their long-term commitment and potential underutilization during idle periods. On-Demand Instances would provide the required resources but without cost optimization for sporadic use. Finally, Dedicated Hosts are physical servers with EC2 instance capacity fully dedicated to a user's use case and are generally used for specific compliance requirements, not for handling sporadic demand efficiently.
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