Compare and contrast HTTP and HTTPS protocols, including their purposes anddifferences in security.14. Describe the role of a web server in serving web content to clients and handlingrequests

1. HTTP vs HTTPS:

HTTP stands for Hypertext Transfer Protocol, while HTTPS stands for Hypertext Transfer Protocol Secure. Both are protocols used for transmitting hypertext requests and information between servers and browsers.

HTTP is not secure, meaning that the information transferred can be intercepted by third parties to gather data being passed back and forth. This can include information such as credit card numbers and other personal data, making it a poor choice for online shopping or banking.

HTTPS, on the other hand, is secure. It uses SSL (Secure Sockets Layer) or TLS (Transport Layer Security) protocols to encrypt the data that is being sent and received. This means that even if the data is intercepted, it would be unreadable. Most browsers also display a padlock icon or a green address bar to indicate that an HTTPS connection is in effect.

2. Role of a Web Server:

A web server's main role is to store, process and deliver web pages to clients. The communication between client and server takes place using the Hypertext Transfer Protocol (HTTP).

When a browser needs a file that's hosted on a web server, the browser requests the file via HTTP. Once the request reaches the correct (hardware) web server, the (software) web server accepts the request, finds the requested document, and sends it back to the browser, also through HTTP.

To handle requests efficiently, a web server needs to handle tasks concurrently. For example, if two users access the website at the same time, it needs to deliver the requested pages to both users.