Angular Interview Cheat Sheet

1. Whai is angular

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2. What is Angular and why is it used?

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3. What are Angular Components?

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4. What is a Module in Angular?

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5. What is Data Binding in Angular?

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6. What are Directives in Angular?

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7. What is Dependency Injection in Angular?

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8. Explain Angular Lifecycle Hooks.

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9. What is Angular Change Detection?

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10. What is the Angular CLI and why is it needed?

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11. What is Ahead-of-Time (AOT) Compilation in Angular?

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12. What are Angular Pipes and where are they used?

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13. Explain Angular Services and their role in an application.

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14. What are Observables in Angular and why are they important?

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15. What is Angular Routing and how does it work?

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16. What are Route Guards and when do you use them?

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17. What is Lazy Loading in Angular and why is it essential?

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18. What is the difference between Template-driven and Reactive Forms?

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19. What is the purpose of Zones in Angular (Zone.js)?

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20. What is ChangeDetectionStrategy.OnPush and when should you use it?

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21. What is ViewChild and why is it used?

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22. What is a Component in Angular and what are its key responsibilities?

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23. Explain Angular Lifecycle Hooks and why they matter.

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24. What is the purpose of NgModule in Angular?

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25. What is Dependency Injection (DI) and how does Angular implement it?

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26. What is the difference between Component-level and Module-level Service Providers?

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27. What are Structural Directives and Attribute Directives?

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28. What is Change Detection in Angular and how does it work?

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29. What is the difference between Template Binding Types in Angular?

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30. What is Content Projection and why do we use it?

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31. What is Ahead-of-Time (AOT) Compilation in Angular?

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32. What triggers Change Detection in Angular, and why is understanding this important?

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33. What is the difference between Angular’s Default and OnPush Change Detection Strategies?

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34. What are Pure and Impure Pipes and how do they affect performance?

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35. What is RxJS and why is it so important in Angular?

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36. What are Hot and Cold Observables and how do they differ?

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37. What is Subject, BehaviorSubject, and ReplaySubject?

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38. What is Angular Module Federation, and why is it relevant in large applications?

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39. What is the role of Angular Zones, and when might you disable them?

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40. What is Tree-Shaking and how does Angular benefit from it?

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41. What is ViewEncapsulation in Angular and what modes does it support?

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42. What problem does NgRx solve, and when should it be used instead of simple services?

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43. Explain the core building blocks of NgRx Store and how they work together.

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44. What is the difference between Reactive Forms and Template-Driven Forms?

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45. How do Angular Guards work internally and what types exist?

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46. What is the purpose of the Angular Router Outlet and how does routing technically work?

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47. What is Lazy Loading in Angular and why is it important?

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48. What is Preloading Strategy in Angular?

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49. What is the role of ChangeDetectorRef and when should it be used?

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50. What are Angular Schematics and why are they used?

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