Computer Systems (Security Precautions)
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What is data usually split into before it is sent across a network?
Packets eg. an image file is not sent as one single file but instead a separate packets which are used to assemble an image file once they are recieved
What do firewalls do?
Ensure that data packets meet specific criteria before entering a network Deny unauthorised access
What is Encryption?
Encryption is the method of scrambling data up in order to stop any unauthorised person(s) from reading it
When using encryption, what is it pivotal to ensure?
Make sure that the sender and receiver pf the encrypted data are following the same code or key
What are firewall rules made from?
Port Number Protocols Sender IP address Receiver IP address