What is the full form of SQL?

Structured Query Language.

What is AWS DynamoDB used for?

DynamoDB is used when you need a fast, scalable, and highly available NoSQL database for workloads that don’t require complex relational queries.

What is the most popular AWS database?

Amazon DynamoDB is also very popular, especially for NoSQL, high-scale use cases.

Is AWS S3 a database?

No

What is the difference between Aurora and RDS?

Aurora is a high-performance, highly available, and scalable relational database built by AWS, compatible with MySQL and PostgreSQL.

RDS is a broader managed DB service supporting multiple engines with standard performance.