AWS · SAA-C03
Cost-optimized databases
SAA-C03 · Lesson 22 of 23 · 3:14:23
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In this lesson
Prepare for the SAA-C03 exam (AWS Certified Solutions Architect – Associate). In this lesson: relational and non-relational databases, MySQL and PostgreSQL, Aurora Serverless v2, DynamoDB capacity modes and table classes, Aurora I/O-Optimized, RDS Proxy, read replicas, and caching, backup and retention policies, and homogeneous and heterogeneous migrations with AWS DMS and DMS Schema Conversion. Includes three original practice questions.
Preview the topics
- A DynamoDB table holds 40 TB of orders that customers rarely look at, and storage is 80% of the table’s cost. What reduces the cost with no code change?
- A test database on Amazon RDS is used for regression tests two days a month, and sits idle the rest of the time. Which approach costs the least?
- AnyCompany wants to move its booking database from a licensed commercial engine on premises to Aurora PostgreSQL, with little downtime. What should the architect use?