AWS Certified Solutions Architect Associate SAA-C03 Practice Question
Your client’s application experiences unpredictable and intermittent periods of intense read and write operations, driven by seasonal events. The application's data storage needs to be cost-effective, handle sudden increases in demand, and revert to a cost-saving state during off-peak times without manual intervention. Which AWS service should be used for the primary storage of application data to meet these requirements?
Amazon S3 Intelligent-Tiering
Amazon Elastic File System (EFS) with Lifecycle Management policies
Amazon S3 Intelligent-Tiering is designed to optimize costs by automatically moving data to the most cost-effective access tier without performance impact or operational overhead. This is ideal for data with unknown or changing access patterns. Amazon S3 Standard-Infrequent Access (S3 Standard-IA) and Amazon S3 One Zone-Infrequent Access (S3 One Zone-IA) are less expensive for storage but do not automatically scale with access patterns, potentially incurring higher costs during peak access times. Amazon Elastic File System (EFS) is suitable for file storage but, without the Intelligent-Tiering feature, may not provide the most cost-efficient solution for unpredictable access.
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