BSc IT - Web Application Development - ASP.NET

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Explain building blocks of web services in details.

Web services are built using a set of standardized technologies and protocols that allow different applications to communicate over the internet. The main building blocks of web services include:

### 1. **XML (eXtensible Markup Language)**
- **Purpose**: Used to format and
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Explain structured exception handeling with example.

Structured Exception Handling is a way to handle runtime errors in a controlled manner using predefined blocks

It prevents the application from
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Explain server side state management with example.

Server-side state management refers to storing user or application data on the server during a user's interaction with a web application. Unlike client-side methods (like cookies or local storage), this data is not
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Difference between cookies and session.

Cookies and Session are both used to store user-specific data in web applications, but they work differently.

Cookies are small text files stored on the user's browser (client-side) that can persist even after the browser is closed, depending on their expiration settings. They are
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Explain need of web.config file in ASP.NET application.

The web.config file is a configuration file in ASP.NET that stores settings for the application.
It is used to:

Set connection strings (for database access).
Configure application settings (like keys,
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use of runat property of control in ASP.NET

The runat="server" property makes an HTML element programmable on the server side in ASP.NET.

Key Points:

Allows you to access and manipulate the
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Explain Data reader object and use.

A Data Reader is a fast, read-only, forward-only stream of data from a database.

Use:

Retrieves data quickly and efficiently when you only need to
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Define Web-service.

A web service is a software component that allows applications to communicate with each other over the web using standard protocols like HTTP . It provides a way for different systems to exchange data or functionality in a
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