Security and Integrity of Data

... . Therefore hackers would not be able to gain access to the network, as the firewall would stop them.

· Give every person that is going to use the network a unique username and password. Then anybody that didn't know the passwords would be unable to gain entry to the network. Also the server administration could allow different people access to different things throughout the network to limit and track damage that could be done.

Passwords

Passwords are used to limit who can gain access to a computer. For a password to be effective it would have to be changed regularly and be difficult for another person to guess. However there are programs that can guess passwords very quickly through word lists that are programmed into them. To combat this the number of attempts there can be at entering the password can be limited.

For example, on the school network each pupil has a separate folder with a unique username and their own password. If anybody tries to gain unauthorised access to a folder placed on the network they would first need to know a username, and a password that goes with it, finding these could be a difficult task.

Integrity of data

Data can become inaccurate in some of the following ways:

· Mistakes in collecting data

· Transmission errors - These types of errors would occur when data, which has been sent from one device to another, is changed during transmission due to a hardware failure. For example files being sent across the Internet from one computer to another may become corrupt through sending, which would render them unusable.

· Read errors - When data is misread.

· Transcription errors - These are errors t ...