Syllaro Academy

AWS Certified CloudOps Engineer - Associate

DynamoDB Scaling and DAX

Capacity units and the arithmetic behind them, on-demand versus provisioned with auto scaling, why a table throttles while it still has headroom, and what DAX caches and what it quietly refuses to.

Intermediate 28 minutes 5 Learning Objectives
  1. Calculate the read and write capacity a workload consumes, including consistency and item-size rounding
  2. Choose between on-demand and provisioned capacity, and predict how each responds to a traffic spike
  3. Configure DynamoDB auto scaling and explain why it does not stop short spikes from throttling
  4. Diagnose a throttled table that still has unused provisioned capacity
  5. Predict what DAX serves from cache, what it passes through, and when it returns data that is out of date