Types of networks

Networks

There are different types of networks. Common types of networks are: WAN and LAN. There are other types of networks as well: SAN, MAN, BAN, IAN and others. Each network type helps us understand the purpose, design goals, and scale of the network. For example if we say a network is a LAN, we can assume it is a local network, probably in one building or in a reasonably restricted area. We might make an assumption that a LAN has a certain number of devices connected to it. However, if we say a network is a WAN, we might assume it is much larger, and designed to accommodate a much, much larger number of devices.

A visual representation of a LAN and a WAN.

Do you understand this topic?

You should be able to:

1. Describe how communication over networks is broken down into different layers.
2. List the stages in the OSI model

Do you have an advanced understanding about this topic?

If you want an advanced understanding of this topic, try answering the questions below:

1. Explain the process of encapsulation and de-enacapsulation
2. We use the OSI model to help us understand where to look for problems. Describe what tools you would use to diagnose which levels of the OSI model.

What you MUST know about this topic

• Identify different types of networks. Level: 2

a group or system of interconnected people or things.

a group or system of interconnected people or things.

a group or system of interconnected people or things.

Produce a plan, simulation or model.

A unit of abstract mathematical system subject to the laws of arithmetic.

Give a detailed account or picture of a situation, event, pattern or process.

Give a sequence of brief answers with no explanation.

Give a detailed account including reasons or causes.

Provide an answer from a number of possibilities. Recognize and state briefly a distinguishing fact or feature.