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What are access modifiers?

Q: What are access modifiers?

Short answer: Keywords that define visibility of class members. Common C# modifiers: private → accessible only inside the class public → accessible from anywhere protected → accessible in class and derived classes internal → accessible within the same assembly protected internal → accessible in derived classes or same assembly Real-world example (ShopNest) Think of ShopNest’s Product , Cart , and Order classes: each object holds data + behavior, so pricing rules stay next to the data they use. Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: Keywords that define visibility of class members. Common C# modifiers: private → accessible only inside the class public → accessible from anywhere protected → accessible in class and derived classes internal → accessible within the same assembly protected internal → accessible in derived classes or same assembly

Real-world example (ShopNest)

Think of ShopNest’s Product, Cart, and Order classes: each object holds data + behavior, so pricing rules stay next to the data they use.

Say this in the interview

Define — one clear sentence (the short answer above).
Example — relate it to a project like ShopNest or your real work.
Trade-off — when you would not use it.

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