Your team lead mentions the use of a "_Layout.cshtml" file in your ASP.NET Core project. What is the primary role of this file?

  • Defining the webpage's structure and common elements
  • Storing application configuration settings
  • Handling user authentication
  • Rendering JavaScript code
The primary role of "_Layout.cshtml" in ASP.NET Core is to define the webpage's structure and common elements, such as the header, footer, and navigation menu. It allows for consistent layout across multiple pages in your application.

Which tool would you use for building, running, and managing .NET applications without an IDE?

  • .NET CLI
  • Visual Studio
  • Visual Studio Code
  • ReSharper
The .NET CLI (Command-Line Interface) is a powerful tool for building, running, and managing .NET applications without relying on a full-fledged Integrated Development Environment (IDE). It allows developers to work efficiently in the command-line environment, making it a versatile choice for various .NET development tasks.

When leveraging the power of client-side validation in Razor forms, the unobtrusive _________ validation library is often used in conjunction with jQuery.

  • Ajax
  • Validation
  • Unobtrusive
  • jQuery
When using client-side validation in Razor forms, the unobtrusive Validation library is frequently used in conjunction with jQuery. This library allows you to define validation rules for form fields on the client side, providing immediate feedback to users without requiring a server round-trip. It's a crucial component for building responsive and user-friendly web applications.

How do Razor tag helpers differ from HTML helpers in ASP.NET Core?

  • They are written in C#
  • They use HTML-like syntax
  • They are used for validation
  • They are not used for forms
Razor tag helpers in ASP.NET Core use HTML-like syntax, making them more natural and readable in Razor views. HTML helpers typically involve writing C# code within the view, which can be less intuitive for front-end developers.

You're a beginner and want to start developing ASP.NET Core apps. Which IDE developed by Microsoft would you most likely start with for a comprehensive development experience?

  • Visual Studio
  • Visual Studio Code
  • Eclipse
  • IntelliJ IDEA
As a beginner, for a comprehensive ASP.NET Core development experience, you would typically start with Microsoft's Visual Studio. Visual Studio provides a rich and integrated development environment specifically tailored for ASP.NET Core development, making it an excellent choice for newcomers.

You are tasked to catch all unhandled exceptions globally in your ASP.NET Core MVC application. Which approach would be most suitable to achieve this?

  • Use the try...catch block in every action method.
  • Configure global exception handling in the Startup.cs file using app.UseExceptionHandler("/Home/Error").
  • Implement a custom exception filter for each controller.
  • Set MvcOptions.Filters.Add(new GlobalExceptionFilter()) in the Startup.cs file.
To catch all unhandled exceptions globally in an ASP.NET Core MVC application, you should configure global exception handling in the Startup.cs file using app.UseExceptionHandler("/Home/Error"). This route will handle unhandled exceptions and direct them to a specified error page.

To serve static files, one must configure the necessary _________ in the Startup.cs file.

  • Middleware
  • Route
  • Controller
  • Model
To serve static files in ASP.NET Core, you need to configure the necessary middleware in the "Startup.cs" file. Middleware is a key concept in ASP.NET Core for handling requests and responses.

How can you enforce a strict null check in Razor views to catch potential null reference issues at compile-time?

  • Use the @ operator
  • Add @Nullable attribute to variables
  • Use the "as" keyword
  • Enable nullable reference types with #nullable directive
To enforce strict null checking in Razor views, you can enable nullable reference types by using the "#nullable" directive at the top of your Razor file. This allows the compiler to detect potential null reference issues at compile-time, reducing runtime errors.

While working on an ASP.NET Core project, you notice that all Razor views seem to have access to the same set of using directives and shared code. Which file is likely responsible for this behavior?

  • _ViewImports.cshtml
  • _Layout.cshtml
  • _ViewStart.cshtml
  • web.config
The _ViewImports.cshtml file is responsible for defining common using directives and shared code that are automatically available to all Razor views in an ASP.NET Core project. It centralizes the configuration for views, promoting code reuse and consistency.

In which file format is the ASP.NET Core project definition primarily saved?

  • .xml
  • .json
  • .yaml
  • .html
The ASP.NET Core project definition is primarily saved in a .json (JavaScript Object Notation) file format. This JSON file, often named "project.json" or "*.csproj," contains essential project configuration information, dependencies, and build settings. It's used by the build system to compile and manage the project.