This subject describes the skills and knowledge required to maintain, install new and upgrade existing operating systems (OS) in a medium to large organisation.

It applies to invidividuals who apply technical and specialised knowledge to undertake complex support arrangements.

This unit provides a cyber security practitioner with an introduction to the skills and knowledge required to comprehend how data travels around the internet and the function and operation of protocols such as the Transmission Control Protocol/Internet Protocol (TCP/IP) suite and devices that facilitate this data transfer. The exposure to these protocols is at an introductory level in this unit.