BCB Analista Tecnologia Da Informação Practice Questions - Banco Central Do Brasil Analista - Tecnologia Da Informação Exam

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In Clean Architecture and Hexagonal Architecture (Ports and Adapters), what fundamental rule governs source code dependencies across architectural boundaries?

Source code dependencies must point strictly inward, toward higher-level policies and core business logic. Outer layers containing UI and database drivers can be directly imported and referenced by core domain entities. Business entities must directly instantiate database adapters to maintain transactional integrity. Data transfer objects (DTOs) in the domain layer must depend on external web framework serialization annotations.

Correct Answer:

Source code dependencies must point strictly inward, toward higher-level policies and core business logic.

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