Ravi Sir's Cards › AWS
Data model
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
Data model
DynamoDB
NoSQL key-value / document.
RDS MySQL
Relational SQL tables.
Key points
No joins; design for keys.
Joins, rich SQL, ad-hoc reports.
Example
Serverless on-demand scale.
Use when
Sessions, notes by id.
Accounting with many relations.