Describe the role of cookies in web applications. How do session cookies differ from persistent cookies?

Cookies are small bits of information that a web server sends to a client's internet browser. They are stored on the client device and are sent back to the server with each resulting demand. Cookies serve several important functions in web applications:

• Session Management:

Cookies are commonly used to manage user sessions. When a user visits a website, a session cookie is created. This cookie contains a unique session identifier that allows the server to associate subsequent requests from the same user with their session. It helps in maintaining the user state between different web pages and interactions.

• User Authentication:

Cookies are used for user authentication. After a client signs into a web application, a session is normally made to recall the client's authentication status. This permits the client to get to safeguarded assets without having to re-enter their credentials for every request.

• Personalization:

Web applications can utilize cookies to remember client inclinations, like language settings or show choices. Personalization enhances the user experience by providing customized content.

• Shopping Carts:

In e-commerce applications, cookies store information about items added to a shopping cart. This allows users to continue shopping and complete their purchases later without losing their selected items.

• Tracking and Analytics:

Cookies are additionally utilized for tracking user behavior and gathering examination information. This data assists site proprietors in understanding how clients communicate with their site and making enhancements accordingly.