Summary

• Relational Databases - OLTP: RDS & Aurora (SQL)

• Differences between Multi-AZ, Read Replicas, Multi-Region

• In-memory Database: ElastiCache

• Key/Value Database: DynamoDB (serverless) & DAX (cache for DynamoDB)

• Warehouse - OLAP: Redshift (SQL)

• Hadoop Cluster: EMR

• Athena: query data on Amazon S3 (serverless & SQL)

• QuickSight: dashboards on your data (serverless)

• DocumentDB: “AuroraforMongoDB” (JSON–NoSQL database)

• AmazonQLDB: Financial Transactions Ledger (immutable journal, cryptographically verifiable)

• Amazon Managed Blockchain: managed Hyperledger Fabric & Ethereum blockchains

• Glue: Managed ETL (Extract Transform Load) and Data Catalog service

• Database Migration: DMS

• Neptune: graph database