Networks

By the end of the lesson

You should be able to answer the following question: 

 

 

Networking Methods

Local and Wide Area Networks

 

What is the difference? 

 

Which would be more suitable for a corner shop? 

 

Which would be more suitable for Amazon? 

 

Which would be more suitable for McDonald's? 

 

What is a WAN made up of?

Networking Methods

Client/Server Networks

Client/server networks have a central server that connects together all devices in a star topology.

 

The client will begin all communications asking for information from the server. 

 

The Server will sit and wait for requests. 

Networking Methods

Client/Server Networks

Networking Methods

Client/Server Networks

Networking Methods

Peer to Peer Networks

Networking Methods

Peer to Peer Networks

Networking Methods

Virtual Private Networks (VPNs)

Task: In your notebooks, write down everything you remember about VPNs and cloud computing.

Networking Methods

Cloud Computing

Task: Underneath VPNs, write down everything you remember about cloud computing

Implications

Type of Network Cost Security
Client/ Server High setup/ maintenance costs. Lots of parts incl. Server and switch. User IDs, passwords and access levels.
Centrally controlled
Backup is centralised and usually automated.
Peer to Peer Cheap to set up and maintain Files and programs saved on individual Computers.
Can be used for sharing of music and streaming of live events.

Implications

Type of Network Cost Security
VPN Monthly subscription roughly £10/month Uses encryption to ensure a secure connection over unsecured internet infrastructures
Cloud Computing Between £5 and £25 per month Built in backups.
Strong security but out of the control of the client

Exam Question

Networks

By CJackson

Networks

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