Web Development - What is Client Server Model

Summary

In this Learning Journal session, the presenter explains the concept of taking a simple web page to the Internet to make it a website accessible globally. They discuss the necessity of a web server, which acts as a listener and responder to client requests over the Internet. The video introduces the client-server model, where the browser is the client and the web server is the server, emphasizing the server's role in delivering web pages. The session promises more in-depth information on web servers in future videos.

Takeaways

• 🌐 A website is a collection of web pages and can be as simple as a single HTML page.
• 🏠 To make a website accessible to others, it needs to be hosted on the Internet, not just on a local machine.
• 💻 The first requirement for hosting a website on the Internet is a computer with an Internet connection.
• 🔄 An additional necessity for making a website available online is a web server.
• 🤔 A web server is a piece of software that listens and responds to user requests over the Internet.
• 🏢 The client-server model is fundamental to how websites work, with the client (browser) sending requests and the server (web server) providing responses.
• 🔑 An Internet service provider assigns a unique IP address to a computer when it connects to the Internet.
• 🚪 A web server acts as a listener, waiting for and responding to incoming requests, much like someone at home to answer the door.
• 🌐 The browser, as a client, sends a request to the server, which is identified by an IP address, to access web pages.
• 🔍 The script introduces the concept of a web server and sets the stage for further exploration in upcoming videos.

Q & A

What is the minimum requirement to create a website?

The minimum requirement to create a website is a single HTML page.

Why can't others access a website hosted on a local machine?

Others cannot access a website hosted on a local machine because it is not connected to the Internet, and thus not publicly available.

What is the first logical thing needed to take a website to the Internet?

The first logical thing needed is a computer with an Internet connection.

Why is a web server necessary for making a website accessible on the Internet?

A web server is necessary because it listens and responds to incoming requests from users over the Internet, allowing them to access the website.

What is the role of an Internet service provider in making a website accessible?

An Internet service provider assigns a unique IP address to the computer when it connects to the Internet, which is necessary for the website to be accessible.

What is the client-server model in the context of web technology?

In the client-server model, the client (like a web browser) sends a request, and the server (like a web server) returns an appropriate response.

What happens when a user types a website's address into their browser?

When a user types a website's address into their browser, the browser sends a request to the server hosting the website to retrieve the requested page.

What is the problem if a web server is not running on a computer hosting a website?

If a web server is not running, it cannot listen to and respond to incoming requests, meaning users cannot access the website.

How does the browser know where to send a request when a user enters a website's address?

The browser sends a request to the IP address associated with the website, which is provided by the domain name system (DNS) when the website's address is entered.

What is the fundamental function of a web server?

The fundamental function of a web server is to listen for incoming requests from clients and respond by serving the appropriate web pages or resources.

Why might a website's address be difficult to use if it's just an IP address and file name?

A website's address might be difficult to use if it's just an IP address and file name because it is not human-friendly and can be hard to remember compared to domain names.