Which AWS service can a company use to perform complex analytical queries?
Amazon RDS
Amazon DynamoDB
Amazon Redshift
Amazon ElastiCache
Explanations:
Amazon RDS is primarily for relational database services and is not optimized for complex analytical queries.
Amazon DynamoDB is a NoSQL database service designed for key-value and document data but not for complex analytics.
Amazon Redshift is a fully managed data warehouse service optimized for complex analytical queries and large-scale data processing.
Amazon ElastiCache is a caching service that enhances database performance but is not designed for performing complex analytical queries.