Unit 4: Backend Development Using ASP.NET Core - Practice Quiz

1 What is ASP.NET Core mainly used for?

2 In MVC architecture, which component handles user interface presentation?

3 Which MVC component processes user requests?

4 What does an HTTP request usually represent?

5 What does an HTTP response contain?

6 What is an action method in an ASP.NET Core controller?

7 Which return type is commonly used by controller actions in ASP.NET Core MVC?

8 Which symbol starts a C# code expression in a Razor view?

9 What is the main purpose of the Razor View Engine?

10 What is the purpose of a layout in ASP.NET Core MVC?

11 Which file commonly defines default view settings such as a layout?

12 Which data-passing technique uses dynamic properties?

13 Which technique is commonly used to pass data from one request to the next request?

14 What does a model usually represent in an MVC application?

15 What is session state used for?

16 Which HTML element is used to create a form?

17 What does model binding do in ASP.NET Core MVC?

18 What is the purpose of Tag Helpers in Razor views?

19 Where does server-side validation take place?

20 Where does client-side validation usually take place?

21 You are creating an ASP.NET Core web application that must serve HTML pages, process form submissions, and access services through dependency injection. Which project type is the most appropriate starting point?

22 In an MVC application, a controller receives a request, retrieves customer data, and returns a page displaying that data. Which sequence best represents the communication flow?

23 An action must return a 404 Not Found response when a requested product does not exist. Which return statement is most suitable?

24 A controller contains the following action: public IActionResult Details(int id). A request is sent to /Products/Details/12. Assuming conventional routing, what value is assigned to id?

25 Inside a Razor view, which syntax correctly displays the Name property of a model object?

26 A Razor view should display a paragraph only when Model.IsActive is true. Which code is correct?

27 A layout contains @RenderSection("Scripts", required: false). What happens when a child view does not define a Scripts section?

28 A developer wants every Razor view in a folder and its subfolders to use the same layout without repeating Layout = ... in each view. Which file is intended for this configuration?

29 A controller redirects from one action to another and must display a one-time confirmation message after the redirect. Which data-passing mechanism is most appropriate?

30 Which statement correctly describes the relationship between ViewBag and ViewData in ASP.NET Core MVC?

31 A form collects fields from a database entity but should not allow users to submit properties such as IsAdmin or CreatedDate. Which modeling approach is safest?

32 An ASP.NET Core application needs to store a small shopping-cart identifier for a user across multiple requests. Which configuration is required before using HttpContext.Session?

33 A form submits data to an action that creates a new record. Which pair of attributes is normally used to distinguish the display form action from the processing action?

34 An action has the signature public IActionResult Search(string category, int page = 1). A request is sent to /Products/Search?category=Books&page=3. What values are bound to the parameters?

35 A form contains an input named Email, and the action parameter is string email. What allows ASP.NET Core model binding to associate the input with the parameter?

36 A Razor form uses <input asp-for="Email" />. What is a primary benefit of the asp-for Tag Helper?

37 A developer wants a link to call the Details action of the Products controller with id equal to 8. Which Tag Helper usage is correct?

38 After submitting a model with a required property left empty, which check should a controller perform before saving the data?

39 A model property has the attribute [StringLength(20, MinimumLength = 5)]. Which input satisfies this validation rule?

40 A form uses validation attributes and Tag Helpers, but validation messages do not appear until the form is submitted to the server. Which missing component is the most likely cause?

41 An ASP.NET Core application must serve MVC pages, JSON APIs, and static files. Which middleware and endpoint configuration best preserves conventional MVC routing while allowing all three workloads?

42 A controller receives an entity from a repository, but the view must display calculated totals and omit internal fields. Which design most appropriately preserves MVC responsibilities?

43 A POST action successfully creates a resource and must prevent duplicate submission when the user refreshes the browser. Which response pattern is most appropriate?

44 An action returns BadRequest() for malformed input, Unauthorized() for an unauthenticated request, and Forbid() for an authenticated user lacking permission. Which interpretation is correct?

45 Two actions in the same controller are named Search, one accepting string term and one accepting int id. Requests to /Products/Search?value=12 produce an ambiguous action error. Why?

46 A controller action accepts a complex parameter named order, and the request contains order.Customer.Name=Lee. What does successful model binding generally require?

47 In a Razor view, @Model.Name is rendered as HTML-encoded text, while @Html.Raw(Model.Name) renders markup contained in the value. Which security conclusion is correct?

48 A Razor loop contains @if (item.IsActive) { <span>Active</span> }. The markup is emitted only for active items. Which Razor behavior explains this?

49 A shared _ViewStart.cshtml sets Layout = "_MainLayout", but one view must use a different layout. What is the correct approach?

50 A layout declares @RenderSection("Scripts", required: true). A view does not define that section, and no fallback is provided. What is the result?

51 A controller assigns ViewData["Notice"] = "Saved" and returns a view. The view reads ViewBag.Notice. What is expected?

52 A POST action sets TempData["Message"] and redirects to a GET action. The GET reads the message once and renders a view. What is the typical behavior?

53 A domain model has a calculated Total property with only a getter, while a posted form contains a Total field supplied by the client. What is the safest design?

54 An application uses session state in a multi-instance deployment. Users intermittently lose session values after requests are routed to different instances. Which solution addresses the underlying problem?

55 A developer stores a large object graph in ASP.NET Core session and observes serialization overhead and stale values across requests. Which change is most appropriate?

56 A Razor form submits a POST request to an action protected by antiforgery validation. The form was generated with the Form Tag Helper. What must normally be present for validation to succeed?

57 An action has [HttpPost] public IActionResult Save([Bind("Name,Price")] Product product). The posted form also includes IsAdmin=true. What happens to IsAdmin during binding?

58 A form posts Items[0].Name, Items[2].Name, and Items[3].Name, omitting index 1. Under indexed collection binding conventions, what issue can occur?

59 A form uses <input asp-for="Email" /> and the model state contains an invalid submitted value. The model property has a different value set by the controller before returning the view. Which value is typically rendered?

60 A POST action checks ModelState.IsValid, but a malicious client submits an invalid date string. Why must the action still perform this check before using the model?