Answer: Amazon Redshift

## Explanation Amazon Redshift is the correct choice for a petabyte-scale data warehouse because: - **Amazon Redshift** is AWS's fully managed, petabyte-scale data warehousing service specifically designed for large-scale analytics and business intelligence workloads - It can handle petabytes of data and provides high-performance querying capabilities ### Why other options are incorrect: - **Amazon DynamoDB** is a NoSQL database service for key-value and document data, not designed for data warehousing - **Amazon RDS** is a relational database service for OLTP (Online Transaction Processing) workloads, not optimized for large-scale analytics - **Amazon ElastiCache** is an in-memory caching service for improving application performance, not for data warehousing Amazon Redshift is purpose-built for data warehousing scenarios where you need to analyze massive amounts of structured data across multiple dimensions.

Author: Ritesh Yadav