SAP-C02 Question 186
Single answerA company is migrating its mission-critical application to AWS. The application requires low-latency access to a shared file system for multiple EC2 instances across multiple Availability Zones. The company also needs to ensure durability and scalability of the file system to handle a growing number of reads and writes. Which AWS service is the MOST suitable for this use case?
- A
Amazon Elastic File System (EFS)
- B
Amazon FSx for Windows File Server
- C
Amazon S3
- D
Amazon RDS
Show answer and explanation
Correct answer: A
Explanation
Amazon Elastic File System (EFS) is the most suitable service for this scenario because it is a scalable, elastic, and highly available file system that supports access from multiple EC2 instances across multiple Availability Zones. It provides low-latency, shared file storage, and is designed to handle a growing number of reads and writes, making it ideal for mission-critical applications requiring high durability and scalability.
- A. Correct.
Amazon Elastic File System (EFS) is a fully managed, scalable, and elastic file system designed for use with AWS services and on-premises resources. It supports multiple EC2 instances across multiple Availability Zones with low-latency access, making it ideal for the described use case.
- B. Incorrect.
Amazon FSx for Windows File Server is specifically designed for Windows-based workloads and is not optimal for this scenario as it is not designed to scale elastically for a growing number of reads and writes or provide the required low-latency access across multiple AZs.
- C. Incorrect.
Amazon S3 is an object storage solution, not a file system. It does not provide the POSIX-compliant file system interface required for this scenario.
- D. Incorrect.
Amazon RDS is a managed relational database service and not a suitable option for a shared file system use case as described.