← CLF-C02 Study Guide
Chapter 4 · 10% of the exam
Storage & Databases
S3 object storage, block and file storage comparison, RDS relational, DynamoDB NoSQL.
Topics
- 4.1
S3
Object storage for images, backups, logs, and data lakes — not block storage.
- 4.2
EBS vs EFS vs S3
S3 objects, EBS blocks for EC2, EFS shared file systems.
- 4.3
RDS
Managed relational databases (MySQL, PostgreSQL, MariaDB, Oracle, SQL Server).
- 4.4
DynamoDB
Managed NoSQL with high scalability and low latency.