Answer: Amazon Aurora, Amazon DynamoDB

The correct answer is Amazon Aurora (C) and Amazon DynamoDB (D). Both of these services are designed to provide high availability and durability by automatically replicating data across multiple Availability Zones within a region. Amazon Aurora is a relational database service that maintains six copies of data across three Availability Zones, ensuring high availability and data protection. Amazon DynamoDB is a fully managed NoSQL database service that automatically replicates data across multiple Availability Zones, providing built-in fault tolerance and low-latency performance. In contrast, Amazon EC2 (A) and Amazon EBS (B) do not automatically replicate data across Availability Zones and require manual configuration for replication. Amazon Redshift (E) is a data warehousing service that is not designed for high availability replication across Availability Zones in the same way as Aurora and DynamoDB.

Author: LeetQuiz Editorial Team