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What is a DbContext?

Q: What is a DbContext?

Short answer: What responsibilities does it have? DbContext is the primary class for interacting with the database in EF Core. It: Manages database connections Tracks changes to entities Provides methods for querying and saving data Configures models and relationships Real-world example (ShopNest) ShopNest registers AppDbContext as scoped. One HTTP request = one context. Never inject it as a singleton. 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: What responsibilities does it have? DbContext is the primary class for interacting with the database in EF Core. It: Manages database connections Tracks changes to entities Provides methods for querying and saving data Configures models and relationships

Real-world example (ShopNest)

ShopNest registers AppDbContext as scoped. One HTTP request = one context. Never inject it as a singleton.

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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