AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A company is running a mission-critical transactional database on Amazon EC2 and needs sub-millisecond latency for random read/write operations as the workload scales.
Which AWS storage service is the MOST appropriate choice for the database's primary data files?
Amazon Elastic Block Store (EBS) Provisioned IOPS SSD (io2 Block Express) is designed for high-performance, low-latency, and high-IOPS workloads such as relational databases. Amazon S3 and Amazon S3 Glacier classes are object storage that impose higher latencies and do not support block-level, random writes. Amazon EFS One Zone offers file-system semantics but higher latencies than EBS and is not optimized for small, random I/O patterns typical of OLTP databases.
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