AWS Developer (DVA-C02) pattern recognition

The question structures that repeat across DVA-C02

Lambda trigger selection appears in multiple variations: which event source fits the integration model, how execution behavior changes when invocations are synchronous versus asynchronous. DynamoDB data modeling questions recur around partition key design and GSI versus LSI selection, with the access pattern as the deciding variable. CodeDeploy deployment type selection comes up consistently, tied to rollback tolerance and traffic-shifting requirements. IAM execution roles and resource policies for Lambda appear in both security and integration questions, testing which policy type controls which access path in a developer-configured scenario.