AWS Certified Data Engineer - Associate DEA-C01Demo

By Amazon · Question Mode

QuestionQ159

Data Store Management

A company keeps petabytes of data across thousands of Amazon S3 buckets in the S3 Standard storage class. The data supports analytics workloads with unpredictable and variable access patterns.

Some data is not accessed for months. However, the company must retrieve all data within milliseconds. The company needs to optimize S3 storage costs.

Which solution meets these requirements with the LEAST operational overhead?

  • A Use S3 Storage Lens standard metrics to determine when to move objects to more cost-optimized storage classes. Create S3 Lifecycle policies for the S3 buckets to move objects to cost-optimized storage classes. Continue to refine the S3 Lifecycle policies in the future to optimize storage costs.
  • B Use S3 Storage Lens activity metrics to identify S3 buckets that the company accesses infrequently. Configure S3 Lifecycle rules to move objects from S3 Standard to the S3 Standard-Infrequent Access (S3 Standard-IA) and S3 Glacier storage classes based on the age of the data.
  • C Use S3 Intelligent-Tiering. Activate the Deep Archive Access tier.
  • D Use S3 Intelligent-Tiering. Use the default access tier.
Explanation

Amazon S3 Intelligent-Tiering automatically monitors changing access patterns and moves objects to the most cost-effective low-latency tiers without operational overhead. Its default tiers include Archive Instant Access, which provides millisecond access. Deep Archive Access is optional and requires an object restore, so it cannot satisfy a requirement to retrieve all data within milliseconds.

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