SAA-C03 · Question #430
A company is developing a SaaS solution for customers. The solution runs on Amazon EC2 instances that have Amazon Elastic Block Store (Amazon EBS) volumes attached. Within the SaaS application, custom
The correct answer is D. Invoke an AWS Lambda function to increase the size of EBS volumes based on user input by. EBS Elastic Volumes allow you to dynamically increase storage size, adjust performance, and change volume types without downtime, supporting operational efficiency and scalability for SaaS applications that need to allocate varying storage amounts to customers. Migrating from EBS
Question
A company is developing a SaaS solution for customers. The solution runs on Amazon EC2 instances that have Amazon Elastic Block Store (Amazon EBS) volumes attached. Within the SaaS application, customers can request how much storage they need. The application needs to allocate the amount of block storage each customer requests. A solutions architect must design an operationally efficient solution that meets the storage scaling requirement. Which solution will meet these requirements MOST cost-effectively?
Options
- AMigrate the data from the EBS volumes to an Amazon S3 bucket. Use the Amazon S3 Standard
- BMigrate the data from the EBS volumes to an Amazon Elastic File System (Amazon EFS) file
- CMigrate the data from the EBS volumes to an Amazon FSx for Windows File Server file system.
- DInvoke an AWS Lambda function to increase the size of EBS volumes based on user input by
How the community answered
(34 responses)- A15% (5)
- B3% (1)
- C6% (2)
- D76% (26)
Explanation
EBS Elastic Volumes allow you to dynamically increase storage size, adjust performance, and change volume types without downtime, supporting operational efficiency and scalability for SaaS applications that need to allocate varying storage amounts to customers. Migrating from EBS to S3 (Option A) is not suitable since S3 is object storage, not block storage, and does not support block-level I/O required by many applications. EFS (Option B) and FSx (Option C) are shared file systems, which might add unnecessary complexity and cost, especially if the application depends on block storage semantics. Using Lambda to automate Elastic Volumes resizing provides cost efficiency by allocating resources on demand and reduces operational overhead, aligning with AWS operational excellence and cost optimization best practices.
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