Question #1146
A financial analytics firm is migrating its on-premises infrastructure to AWS. They require 15 TB of storage with the highest possible I/O performance for real-time transaction processing, 350 TB of highly durable storage for a data lake housing historical transaction data, and 1 PB of cost-effective storage for compliance backups that must be retained for seven years.
Which combination of AWS services should a solutions architect propose to fulfill these requirements?
Amazon EBS for high I/O performance, Amazon S3 for the data lake, and Amazon S3 Glacier for compliance backups.
Amazon EC2 instance store for high I/O performance, Amazon EFS for the data lake, and Amazon S3 Glacier for compliance backups.
Amazon EC2 instance store for high I/O performance, Amazon S3 for the data lake, and Amazon S3 Glacier for compliance backups.
Amazon EBS for high I/O performance, Amazon EFS for the data lake, and Amazon S3 for compliance backups.
Explanation
The financial analytics firm requires three storage solutions:
1. High I/O Performance (15 TB): Amazon EC2 instance store is ephemeral but delivers the highest I/O performance due to direct physical attachment to the host, making it ideal for real-time transaction processing.
2. Highly Durable Storage (350 TB Data Lake): Amazon S3 provides 99.999999999% (11 9's) durability, scalability, and is the standard for data lakes, unlike Amazon EFS, which is better suited for shared file systems.
3. Cost-Effective Long-Term Backups (1 PB, 7 years): Amazon S3 Glacier Deep Archive is the most cost-effective option for compliance backups requiring multi-year retention.
Why Other Options Are Incorrect:
- A: Amazon EBS, while high-performance, does not match the raw I/O of EC2 instance stores.
- B: Amazon EFS is less cost-effective and less commonly used for data lakes compared to S3.
- D: Amazon EBS lacks the highest I/O, and S3 is not optimized for long-term backups compared to Glacier.
Key Points:
- Use EC2 instance stores for maximum I/O.
- Use S3 for scalable, durable data lakes.
- Use S3 Glacier Deep Archive for cost-effective long-term archival.
Answer
The correct answer is: C