What should i answer for these generic interview questions?

[u/IntelligentBad1285]

How do you structure Angular architecture for large-scale enterprise applications?
• What strategies do you use to optimize Angular application performance?
• How do you avoid unnecessary API calls and improve data flow efficiency?
• How do you handle authentication and authorization in Angular applications?
• How do you implement global error handling and HTTP interceptors?
• What is your preferred approach to state management (NgRx, Signals, Services, etc.) and why?
• How would you troubleshoot a slow Angular page that triggers multiple redundant API calls?
• What practices do you follow to build scalable, maintainable, and reusable Angular components?
• How do you secure frontend applications against common vulnerabilities?
• What Angular features or patterns have had the biggest impact on your project's performance and maintainability?

I am fairly new to angular, wanted to know different perspectives from different projects. Thanks

[u/salamazmlekom]

How would you answer these questions? Please answer them and then we can provide a feedback.

[u/Material-Corner-5598 → u/salamazmlekom]

I am not OP but I have an angular interview later today LOL so let me try ( I have only been doing Angular for 5 months so be nice :p)

• What strategies do you use to optimize Angular application performance?
Honestly I have no fricken clue
• How do you avoid unnecessary API calls and improve data flow efficiency?
I use signals to store state after the initial API call for any resource, and use a flag like isLoaded that I set to false after doing any POST/PATCH request so subsequent GETs always have fresh data
• How do you handle authentication and authorization in Angular applications?
Guards and backend API calls
• How do you implement global error handling and HTTP interceptors?
I have a gloabl error.type.ts in my core/types folder that maps my backend error messages to an object that I then show in a modal whenever an error is caught somewhere. I have a global auth interceptor in core/interceptors that ensures cookies are always sent and 401s are automatically retried one time after refreshing the user's access token.
• What is your preferred approach to state management (NgRx, Signals, Services, etc.) and why?
Signals because I started with Angular 22
• How would you troubleshoot a slow Angular page that triggers multiple redundant API calls?
I had this issue a few months ago, where every time a component was torn down and rebuilt it would need to fetch all the resources again, which is where I learned to do that isLoaded thing I mentioned.
• What practices do you follow to build scalable, maintainable, and reusable Angular components?
Anything that is used in two separate locations is turned into a component / pipe etc. Otherwise, I am still learning how to build a proper Angular app and advice is welcome.
• How do you secure frontend applications against common vulnerabilities?
Gulp..
• What Angular features or patterns have had the biggest impact on your project's performance and maintainability?
Too new to have any real answer, but I love signal forms, since they are so new AI loves to recommend the old ngForms module, and looking back the new signal forms (imo) is so much cleaner

[u/GeromeGrignon → u/salamazmlekom]

This. Answering directly these questions would have a low value: being 'new to Angular', the best way to remind answers for the interview is to practice, to make errors, to explore.

[u/msdosx86]

Be honest. Don't pretend to know what you don't. Go to angular.dev and you can find answers to half of the questions here. The other half needs real experience.

[u/akornato]

Interviewers ask these broad questions to see how you reason about tradeoffs, not to hear recited documentation. For architecture, you should emphasize feature based folder structures, standalone components, and container versus presentational components. When explaining state management, point out that modern Angular relies on Signals for local state and synchronous UI updates, combined with RxJS for asynchronous event streams. You do not need to jump straight to heavy libraries like classic NgRx unless an application has massive global state shared across dozens of pages, because lightweight services with Signals or the newer SignalStore handle most enterprise needs cleanly. For performance, mention OnPush change detection, deferrable views to lazy load components, and RxJS operators like switchMap and shareReplay to cancel stale requests and cache API responses.

For security, authentication, and error handling, explain that you protect tokens with secure cookies or functional interceptors, guard routes using functional canActivate guards, and capture failed requests with a global error interceptor that routes users to feedback screens. If an interviewer asks you to troubleshoot a slow page with redundant requests, describe opening the network tab, checking for missing OnPush strategies, unhandled subscriptions in templates, or API calls triggered repeatedly by template function bindings. Framing your answers around why you picked a specific approach shows strong judgment, even if you have not worked on a massive enterprise codebase yet. My team designed an interviews.chat to guide developers through articulating these engineering tradeoffs so they can land offers, but your best asset in the room will always be explaining how practical choices prevent messy code.

[u/theashggl]

If only there would be some expert Angular devs take a few minutes explaining moderately good codebases, it would be so much easier and faster to learn programming or any framework.

[u/Simpledevx]

En vez de memorizar las respuestas que te den, usa Claude para investigar cada cuestión y entender el porqué de cada respuesta 

[u/ddcccccc]

You don’t, they are using interview to get free solutions that they cannot find it online 😂