SAP-C02 Question 188
Select 3Your company is designing a multi-region architecture for a critical application to ensure high availability and low latency for global users. The application requires a database with automated failover capabilities and a caching layer to reduce data access latency. Which combination of AWS Global Infrastructure features and services should you leverage to meet these requirements?
- A
Deploy Amazon RDS with Multi-AZ enabled and replicate it using Amazon RDS Global Database.
- B
Use Amazon ElastiCache with Global Datastore for cross-region data replication.
- C
Deploy an AWS Auto Scaling group and distribute traffic using Amazon Route 53 latency-based routing.
- D
Use Amazon DynamoDB Global Tables to achieve cross-region replication with low latency.
- E
Leverage AWS Direct Connect to establish private connectivity between regions for the caching layer.
Show answer and explanation
Correct answers: A, B, D
Explanation
To meet the requirements of high availability, low latency, and global replication, you need to use services that leverage AWS Global Infrastructure features such as cross-region replication and automated failover. Amazon RDS with Global Database ensures database replication across regions, while Amazon ElastiCache Global Datastore and DynamoDB Global Tables provide low-latency access and replication for caching and NoSQL databases, respectively. Route 53 and Direct Connect, though valuable, do not address the specific requirements of database and caching functionality.
- A. Correct.
Correct. Amazon RDS with Multi-AZ provides automated failover within a region, and RDS Global Database replicates data across multiple regions, ensuring high availability and disaster recovery.
- B. Correct.
Correct. Amazon ElastiCache Global Datastore enables cross-region replication for caching layers, helping reduce latency for global users.
- C. Incorrect.
Incorrect. While an Auto Scaling group and Route 53 latency-based routing help with distributing traffic, they do not address the database or caching requirements.
- D. Correct.
Correct. Amazon DynamoDB Global Tables provide multi-region replication and low-latency access for globally distributed applications, aligning with the requirements.
- E. Incorrect.
Incorrect. AWS Direct Connect establishes private connectivity between on-premises networks and AWS, but it is unrelated to caching or database replication in this case.