Examkin

Question

Difficulty: EasyAWS Storage Services

A financial institution needs to retain historical transaction logs to meet regulatory compliance requirements. These logs are rarely accessed but must be kept secure for seven years. The institution can tolerate a retrieval time of 12 hours for any requested log. Which AWS storage service is the most cost-effective choice for this storage requirement?

  1. A
    Amazon EBS
  2. B
    Amazon EFS
  3. Amazon S3 Glacier Deep ArchiveAnswer
  4. D
    Amazon EC2 Instance Store

Answer

Amazon S3 Glacier Deep Archive is the most cost-effective choice because it is specifically designed for long-term archival storage with retrieval times of up to 12 hours.
Amazon S3 Glacier Deep Archive is the correct choice because it is AWS's lowest-cost storage class, specifically optimized for archiving data that is rarely accessed and can tolerate retrieval times of up to 12 hours.

Step-by-Step Solution

1
Analyze the workload requirements: long-term retention (7 years), rare access, high tolerance for retrieval latency (12 hours), and a primary focus on cost optimization.
The requirements point toward an archival storage solution rather than active performance-focused storage.
Identifying the data access patterns and latency tolerance helps narrow down the service class.
2
Compare the features and pricing of the available storage classes and services.
Amazon S3 Glacier Deep Archive provides the lowest storage cost on AWS with standard retrieval times within 12 hours.
This step determines the exact service that matches the cost-efficiency and retrieval-time requirements.

Key Concept

Selecting the appropriate AWS storage service based on access patterns, durability, retention length, and cost constraints.
Estimated Time:45s
Rate this question

Topics

AWS Storage Services

More questions from this topic