Chapter 13 – Amazon DynamoDB – a NoSQL Database Service

1. False: DynamoDB is addressable via standard HTTP.
2. ACID is fully consistent, while BASE defines eventual consistency.
3. A NoSQL database would be perfect for sessions – it doesn't matter what the application does – it can use SQL on the BI part, but for sessions of NoSQL.
4. C – PUT, R – GET, U – UPDATE, D – DELETE.
5. Tables contain items and items are composed of attributes.
6. 400 KB.
7. Provisioned throughput and on-demand.
8. By dividing 50 MB by 1.5 KB, we get approximately 34.200 items being sent every second to the table – but each item consumes 2 WCUs, meaning we'll need to provision approximately 68.400 WCUs for the table. We're being throttled by the soft limit of 40.000 WCUs per table in the us-west-2 region. We would need to contact AWS to raise the...