Computer Science

the maximum amount of data that can be transferred over a communication channel

the process where routers select the best path for data to travel across a network, using rules called routing protocols

Network performance

Network basics

Types of network

Network hardware and MAC addresses

Network topologies

Wired networks

Wireless networks

Network addressing

The impact of network failure

In this unit pupils will be develop their understanding of computer networks by looking at network models and the tasks performed by network hardware. They will discover the differences between wired and wireless transmission media and the factors that can affect the performance of a network.

Network fundamentals

Which factor describes the maximum amount of data that can be sent over a network in a given time?

the delay before data begins to transfer across the network

Which device is responsible for selecting the best path for data to travel across a network?

What happens to network performance when too many devices are connected at once?

Which of the following is **not** a factor affecting network performance?

the amount of data that can be sent per second

the process of choosing the best path for data

the distance a wireless signal can travel

What is the primary purpose of an IP address?

Which of these best describes the function of DNS?

Put these steps in order for accessing a website.

Domain names are easier for people to remember.

What is the main reason for using domain names instead of IP addresses?

It can access the internet but not local files.

What happens if a device does not have an IP address on a network?

Network performance

Lesson outcome