DEA-C01 Question 246
Select 3A data engineering team is designing a data pipeline to store and process critical business data on AWS. They are required to ensure high availability and durability for their data while minimizing the risk of data loss in case of a regional failure. Which combination of actions should they take to meet these requirements?
- A
Store the data in Amazon S3 with Cross-Region Replication (CRR) enabled.
- B
Use Amazon S3 One Zone-IA for cost optimization.
- C
Enable Multi-AZ deployment for Amazon RDS instances used in the pipeline.
- D
Create an Amazon DynamoDB global table for cross-region availability.
- E
Use AWS Snowball Edge for long-term storage of critical data.
Show answer and explanation
Correct answers: A, C, D
Explanation
To ensure resiliency and availability of critical business data, it is essential to use services and configurations that provide redundancies across Availability Zones and AWS Regions. Amazon S3 with Cross-Region Replication, Multi-AZ RDS deployments, and DynamoDB global tables are designed to meet these requirements. S3 One Zone-IA and Snowball Edge do not provide the necessary levels of durability and availability for this scenario.
- A. Correct.
Correct: Amazon S3 with Cross-Region Replication (CRR) ensures that your data is replicated to another AWS Region, providing resilience and reducing the risk of data loss in case of a regional failure.
- B. Incorrect.
Incorrect: Amazon S3 One Zone-IA stores data in a single Availability Zone, which does not provide high availability or durability in the event of a regional failure.
- C. Correct.
Correct: Enabling Multi-AZ deployment for Amazon RDS ensures high availability by automatically synchronizing data across multiple Availability Zones within the same region.
- D. Correct.
Correct: Amazon DynamoDB global tables replicate data across multiple AWS Regions, ensuring cross-region availability and resilience.
- E. Incorrect.
Incorrect: AWS Snowball Edge is primarily used for data transfer and edge computing, and it is not designed for long-term storage or high availability of data.