I need help ?you are employed as an IT manager in GOTEC ,which is a small sized company (with 20 employers )that is based in London ,the company sells desktop computers and accessories . to help develop your understanding about basics of computer networking ,you have been asked to prepare a report covering various aspects of network that range form describing and explaining the functionality of the different components to the configuration of local area (lan)

Question

I need help ?you are employed as an IT manager in GOTEC ,which is a small sized company (with 20 employers )that is based in London ,the company sells desktop computers and accessories . to help develop your understanding about basics of computer networking ,you have been asked to prepare a report covering various aspects of network that range form describing and explaining the functionality of the different components to the configuration of local area (lan)
in this area cyber warfare ,your company individuals in the company can be prone to various types of security issues .
to the GOTEC management team 
a)Describe common machanisms of network protection?
b)Describe common types of internal and external to networks?