DEA-C01 Question 229
Select 2A data analytics company processes large amounts of customer data daily. Frequently accessed transactional data needs to be available with low latency, while older, less accessed data must be stored cost-effectively but still be retrievable for occasional reporting. Which combination of AWS storage solutions should the company use to meet these requirements?
- A
Amazon S3 Standard for hot data and Amazon S3 Glacier Deep Archive for cold data
- B
Amazon DynamoDB for hot data and Amazon S3 Glacier Deep Archive for cold data
- C
Amazon S3 Intelligent-Tiering for hot and cold data
- D
Amazon S3 Standard for hot data and Amazon S3 Standard-IA for cold data
- E
Amazon EBS Provisioned IOPS SSD for hot data and Amazon S3 Glacier for cold data
Show answer and explanation
Correct answers: A, B
Explanation
To meet the requirements of low-latency access for hot data and cost-effective storage for cold data, a combination of Amazon S3 Standard or Amazon DynamoDB for hot data and Amazon S3 Glacier Deep Archive for cold data is ideal. Amazon S3 Standard provides high durability and availability for frequently accessed data, while Amazon DynamoDB is optimized for low-latency transactional access. For cold data, Amazon S3 Glacier Deep Archive ensures long-term storage at a very low cost, making it an optimal choice for infrequent access.
- A. Correct.
Correct: Amazon S3 Standard offers low-latency access for frequently accessed data, while Amazon S3 Glacier Deep Archive is a cost-effective solution for storing infrequently accessed cold data.
- B. Correct.
Correct: Amazon DynamoDB, a NoSQL database, is designed for low-latency access to frequently accessed transactional data, while Amazon S3 Glacier Deep Archive is suitable for storing archival data cost-effectively.
- C. Incorrect.
Incorrect: While Amazon S3 Intelligent-Tiering automatically moves data across access tiers based on usage patterns, it may not provide the lowest cost for large volumes of archival data, making it less optimal for cold data storage in this scenario.
- D. Incorrect.
Incorrect: Amazon S3 Standard and Standard-IA are both S3 storage classes, but Standard-IA is more expensive than Glacier Deep Archive for long-term cold storage and is best suited for data that is rarely accessed but requires rapid retrieval.
- E. Incorrect.
Incorrect: Amazon EBS Provisioned IOPS SSD is a block storage service designed for high-performance workloads like databases, but it is not cost-effective for storing large amounts of frequently accessed or archival data.