answer : HTML5 is the modern version of HTML, offering new elements, audio/video support, and better structure for web pages.
answer : It describes the layout and spacing of elements: content, padding, border, and margin.
answer : You can use $('#element').hide(); to hide it from the page.
answer : A framework for building web apps using the Model-View-Controller pattern, separating concerns for clean code.
answer : It’s a service that allows communication over HTTP, commonly used for exposing data to clients like browsers or apps.
answer : EF is an ORM that maps .NET objects to database tables, so you can work with data using C# instead of SQL.
answer : LINQ lets you query collections or databases in a SQL-like syntax using C#.
answer : A collection of UI components (like grids, charts, dropdowns) for building rich web apps.
answer : A .NET framework that provides access to data sources like SQL Server using objects like SqlConnection and SqlCommand.
answer : SQL stands for Structured Query Language. It's used to interact with relational databases.
answer : Dapper is a lightweight ORM for .NET, known for high performance and simplicity.
answer : <div> is block-level, <span> is inline. Use <div> for structure and <span> for inline styling.
answer : Use media queries, flexible layouts, and relative units like %, em, and rem.
answer : == compares value; === compares value and type.
answer : In RouteConfig.cs, using the routes.MapRoute() method.
answer : TempData holds data during a single redirect. It's ideal for passing messages between actions.
answer : It renders a partial view inside a main view. Good for reusable UI components.
answer : Filters are attributes that run code before or after actions. Examples: Authorize, HandleError.
answer : Code First lets you define models in C#, and EF generates the database schema automatically.
answer : A saved SQL script you can reuse. Useful for performance and security.
answer : Use SqlConnection, SqlCommand, and SqlDataReader to execute queries and read data.
answer : LINQ queries are not executed until you loop over the results using foreach or call methods like ToList().
answer : Use try-catch blocks, global exception filters, or middleware to catch errors and return proper HTTP responses.
answer : Kendo Grid is a data grid component with features like paging, sorting, filtering, and editing.
answer : Both are used to pass data from controller to view. ViewBag is dynamic, ViewData is a dictionary.
answer : It’s the process of mapping form data or URL parameters to C# objects.
answer : Use $.post() or $.ajax() with type set to POST and provide the data object.
answer : Use authentication methods like JWT, API keys, OAuth, and HTTPS.
answer : Use indexes, avoid SELECT *, use joins wisely, and analyze execution plans.
answer : It loads related data along with the main entity using Include().
answer : Related data is loaded only when it’s accessed for the first time.
answer : It ensures that unmanaged resources like database connections are disposed of properly.
answer : Interfaces can’t have implementation (until C# 8), abstract classes can. A class can implement multiple interfaces but only inherit one abstract class.
answer : HttpClient is used to send HTTP requests and receive responses from a resource identified by a URI.
answer : JSON (JavaScript Object Notation) is a lightweight format for data exchange, commonly used in APIs.
answer : JsonResult is used to return JSON data from a controller action.
answer : Use the jQuery Validation plugin or custom JavaScript to check inputs before submitting.
answer : Add the EnableCors attribute or use middleware to allow cross-origin requests.
answer : Joins combine rows from two or more tables based on a related column. Types include INNER, LEFT, RIGHT, FULL.
answer : A foreign key is a field that links one table to the primary key of another.
answer : Dapper uses reflection to map SQL results to class properties by matching names.
answer : A ViewModel holds data you want to pass from the controller to the view. It can contain multiple models or extra fields.
answer : It holds configuration settings like connection strings, error handling, and more.
answer : Views that are bound to a specific model using @model. It provides IntelliSense support in Razor.
answer : A security attack where malicious SQL is inserted into an input field. Use parameterized queries to prevent it.
answer : ref passes an argument by reference; out does the same but the value must be assigned inside the method.
answer : They let you add methods to existing types without modifying them. Defined as static methods in static classes.
answer : PUT replaces an existing resource; POST creates a new one.
answer : Razor is the syntax used in MVC views to write C# code within HTML using @ symbol.
answer : They simplify asynchronous programming by making code more readable and non-blocking.
This section contains a carefully curated list of 50 commonly asked interview questions and answers for web development roles. These questions span a wide range of essential technologies like HTML, CSS, jQuery, ASP.NET MVC, Web API, Entity Framework, LINQ, Kendo UI, ADO.NET, SQL, Dapper, and C#. Each answer is crafted in simple, conversational language to help job seekers prepare with confidence.
The goal is to provide quick yet comprehensive explanations that are easy to understand, especially for freshers and mid-level developers. Whether you're revisiting concepts or preparing for your next job interview, this resource serves as a handy reference. It covers both theoretical and practical aspects of day-to-day development tasks.
To enhance usability, we’ve added a dropdown menu that allows users to filter questions by category. This way, you can focus only on the technologies you want to study—be it database-related topics like SQL and Dapper, or frontend-focused questions around HTML, CSS, and jQuery.
Simply select a category from the dropdown below, and the relevant questions and answers will be displayed instantly. This feature is especially useful if you're targeting a specific role, such as a backend developer or full-stack engineer. It helps you study smart by narrowing your preparation to the relevant areas.