After a recent deployment, users are facing issues with the login functionality. You suspect it might be due to a migration that wasn't applied correctly. How might you diagnose and rectify this issue?
- Revert to a previous backup of the database
- Run the "dotnet ef database update" command
- Examine the database schema and migration history
- Ignore the issue as it will resolve itself
To diagnose and rectify login functionality issues related to migrations, you should examine the database schema and migration history. Check if the expected changes have been applied by reviewing the migrations and comparing the schema with your model. This allows you to identify discrepancies and take appropriate corrective actions.
The method _________ in UserManager is used to sign in a user programmatically after the user has been created.
- 'SignInAsync'
- 'AuthenticateUser'
- 'LoginUser'
- 'AuthorizeUser'
To programmatically sign in a user after creating them, you can use the 'SignInAsync' method provided by the UserManager class in ASP.NET Core Identity. This method sets up the authentication cookies and establishes the user's identity for subsequent requests.
In Express, which method is used to start a server listening for connections?
- app.listen()
- server.start()
- express.startServer()
- node.start()
In Express, you use the app.listen() method to start a server that listens for incoming connections. This method binds the server to a specified port and hostname, allowing it to handle HTTP requests. The other options are not valid methods for starting an Express server.
Which of the following best describes ASP.NET Core?
- A JavaScript framework for front-end web development
- A cross-platform, open-source framework for building modern, cloud-connected applications
- A framework for building desktop applications
- A proprietary framework exclusively for Windows application development
ASP.NET Core is best described as a cross-platform, open-source framework designed for building modern, cloud-connected applications. It is not limited to any specific operating system and allows developers to create web applications that can run on Windows, macOS, or Linux.
In the MVC pattern, the _________ is responsible for rendering the user interface of the application.
- Model
- View
- Controller
- Middleware
In the MVC (Model-View-Controller) pattern, the "View" is responsible for rendering the user interface of the application. Views are responsible for presenting data to the user in a format that is suitable for display, such as HTML templates or Razor pages.
Which of the following is NOT a benefit of ASP.NET Core?
- Cross-platform compatibility
- Improved performance and scalability
- Proprietary and closed-source
- Modular and flexible architecture
Contrary to the other options, ASP.NET Core is not a proprietary and closed-source framework. It is open-source, meaning its source code is available for public inspection and contribution. This open nature fosters community collaboration and transparency in development.
In a tutorial, you see a property type called DbSet. What does this property represent in the context of Entity Framework Core?
- A DbSet represents an entity set that can be queried and updated.
- A DbSet represents a table in the database.
- A DbSet represents a stored procedure.
- A DbSet represents a connection string.
DbSet in Entity Framework Core represents an entity set, which is essentially a collection of entities of a specific type (T). It provides a way to query and manipulate data for that entity type. It's not directly tied to a database table, but it's a representation of entities that can be queried and modified as if they were rows in a table.
You've set up Entity Framework Core in your project, but you're unsure about how to represent a table from your database in your code. Which component in EF Core helps represent a database table?
- DbSet
- EntityTable
- DatabaseTable
- TableEntity
In Entity Framework Core (EF Core), the DbSet class is used to represent a database table. It's part of the DbContext and allows you to query and perform CRUD operations on the corresponding database table using C# classes.
Docker _________ is the command-line interface tool that allows developers to interact with Docker directly.
- CLI
- Control
- Terminal
- Command
Docker CLI, or Docker Command-Line Interface, is the tool that allows developers to interact with Docker directly through the command line. It provides a set of commands for managing Docker containers, images, and other resources.
You're reviewing an ASP.NET Core project, and you need to understand how the application handles request/response middleware. Where should you primarily look?
- Startup.cs
- Program.cs
- appsettings.json
- wwwroot folder
When reviewing an ASP.NET Core project to understand request/response middleware, the primary place to look is the Startup.cs file. In this file, you'll find the Configure method where middleware components are configured in the request pipeline. This method is where you can examine how HTTP requests and responses are processed.