Computer Science

servers that work together to match domain names to the stored location of the webpage

a small part of a whole file that is transmitted over a network

a method of transmitting data across the internet using small packets of data

How data travels across the internet

Internet fundamentals

Protocols

Network models

The TCP/IP model

Hosting services

Web technologies

Threats to networks

Network security

In this unit pupils will explore how data travels across the internet. They will explore how protocols define communication between devices and the purpose of common network protocols. They will investigate the risks to networks and the methods that can be used to protect a network.

The internet and web technologies

Which component allows you to view webpages on the World Wide Web?

What is the main function of a web server?

a small part of a file sent across a network

What is the method that sends data across the internet by splitting it into small parts that may take different routes?

The website data is split into small packets.

Packets may travel along different routes to avoid busy parts of the network.

The packets are reassembled to display the correct webpage.

Put these steps in order to show how data from a website is delivered to your device using the internet:

Which of the following is a service provided by the internet?

How do users typically access the World Wide Web?

The World Wide Web is a service that runs on the internet.

The internet is a service provided by the World Wide Web.

Which statement is true about the internet and the World Wide Web?

a service for accessing and navigating webpages

The browser requests the webpage from a web server.

Put these steps in order for accessing a website:

How data travels across the internet

Lesson outcome