Ravi Sir's Cards › AWS
What are DynamoDB Streams used for?
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
What it is
Change data capture: Lambda reacts to inserts/updates/deletes.
Why it matters
Fan out search index updates, audit logs, or sync.
How / example
New note → Stream → Lambda writes to OpenSearch.