Multiple choice technology web 2.0

What is the extension of a web user control file?

  1. .asmx

  2. .asp

  3. .aspx

  4. .ascx
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

ASP.NET user controls use the .ascx file extension, which distinguishes them from regular .aspx pages and other web file types. User controls are reusable components that can be embedded across multiple pages. The .asmx extension is for web services, .asp is for classic ASP, and .aspx is for standard ASP.NET pages.

AI explanation

ASP.NET Web User Controls use the .ascx file extension (paired with a markup file and code-behind), distinguishing them from full pages. .aspx is the extension for regular ASP.NET Web Forms pages, .asmx is for classic ASP.NET Web Services, and .asp is the older classic ASP (pre-.NET) page extension. Since the question specifically asks about a user control file, .ascx is the correct and standard answer.

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