DbContext and the Model

1. What is the primary role of DbContext in Entity Framework Core?

Tracks changes to entities Defines the database schema Creates views for the application Manages user authentication

2. What is the recommended lifetime for a DbContext instance in a web application?

Singleton One per HTTP request One per query Permanent across application lifetime

3. Which method is used to register a DbContext in the application's service container?

builder.Services.AddMvc() builder.Services.AddScoped() builder.Services.AddDbContext() builder.Services.ConfigureDbContext()

4. Which of the following configurations allows for expressions of complex relationships and mapping in EF Core?

Data annotations LINQ queries DbContext methods Fluent API