Core Concepts

Understanding the foundational mechanics of DynamoDB is non-negotiable. This module breaks down how data is partitioned, how throughput is metered, and the consistency trade-offs you must make.

Module Contents

1. Architecture & Scaling

Dive into the internal architecture of DynamoDB. Learn about partitions, consistent hashing, and why your choice of Partition Key determines your ability to scale to infinity.

2. RCU & WCU

Master the currency of DynamoDB throughput. Understand the difference between Read and Write Capacity Units, and learn how to calculate costs and handle throttling events.

3. Consistency Models

Explore the CAP theorem in practice. Compare Eventual vs. Strong Consistency, visualize replication lag, and learn when to trade speed for correctness.