Questions
16 of 25
1What is the difference between a shared module and a global module in NestJS?
2What is a shared module in NestJS?
3What is a feature module in NestJS and why should you use them instead of putting everything in AppModule?
4How do you write a dynamic module that supports both sync (register) and async (registerAsync) configuration sharing the same internal providers?
5How would you lazy-load a module in NestJS to improve startup time?
6What must the object returned by a dynamic module's static method always include in NestJS?
7What is the purpose of a module in NestJS and what does the @Module() decorator do?
8What is the naming convention for dynamic module static methods in NestJS and what does each name signal?
9How do you register a global module exactly once in NestJS and what happens if you register it twice?
10When should you export a module vs export individual providers from a module in NestJS?
11What are the four properties inside @Module() decorator?
12How do you implement forRootAsync() in a dynamic module so that options can be loaded asynchronously from ConfigService?
13What are the risks of overusing @Global() modules in NestJS?
14What is a dynamic module in NestJS and how is it different from a static module?
15How do you structure a feature module that has sub-features in NestJS?
16What is the difference between exports in a module and making a provider global with @Global()?
17What is the module encapsulation rule in NestJS and why does it matter?
18Can a feature module re-export an imported module in NestJS? When is this useful?
19What is the difference between a shared module and a global module in NestJS?
20Are NestJS modules singletons? What does that mean practically?
21How can a dynamic module expose a forFeature() method that works alongside a forRoot() registration in NestJS?
22What are dynamic modules in NestJS and when do you use them?
23What does the @Global() decorator do and how does it change module behaviour in NestJS?
24What is a NestJS module, and why is it needed?
25What is the difference between imports and providers inside @Module()?
