How does the Internet work OSI model?

The Internet Layer of the TCP/IP model aligns with the Layer 3 (Network) layer of the OSI model. This is where IP addresses and routing live. When data is transmitted from a node on one LAN to a node on a different LAN, the Internet Layer is used.

What is the responsibility of session layer?

The Session Layer is the 5th layer in the Open System Interconnection (OSI) model. This layer allows users on different machines to establish active communications sessions between them. It is responsible for establishing, maintaining, synchronizing, terminating sessions between end-user applications.

What happens when you request a Web page?

The browser sends an HTTP request message to the server, asking it to send a copy of the website to the client (you go to the shop and order your goods). If the server approves the client’s request, the server sends the client a “200 OK” message, which means “Of course you can look at that website!

What is the purpose of network layer?

The primary function of the network layer is to enable different networks to be interconnected. It does this by forwarding packets to network routers, which rely on algorithms to determine the best paths for the data to travel.

What are the responsibilities of presentation layer?

The presentation layer ensures the information that the application layer of one system sends out is readable by the application layer of another system. On the sending system it is responsible for conversion to standard, transmittable formats.

How are Web pages displayed?

Each web page is identified by a distinct Uniform Resource Locator (URL). If the user clicks or taps a link to another page, the browser repeats this process to display the new page, which could be part of the current website or a different one.

How do Web pages work?

A web page is a simple text file which also contains markup tags that describe how the text should be formatted on screen. A web browser is a type of client software that is able to request web page code from a server over the internet, interpret the markup, and display it on the screen. …