Database & High Availability

Câu 1. A company requires high availability with automatic failover for their Amazon RDS MySQL database within a single AWS Region. Which configuration should they use?

Câu 2. A global e-commerce platform requires single-digit millisecond read and write latency across all regions, with active-active write capability. Which database solution meets these requirements?

Câu 3. A serverless application uses AWS Lambda functions to query an Amazon RDS PostgreSQL database. During peak traffic, the database runs out of available connections. What is the recommended managed solution?

Câu 4. An application uses Amazon DynamoDB and needs to reduce read latency from milliseconds to microseconds for frequently accessed items, with minimal code changes. Which caching solution should they use?