Research to learn the primary responsibilities, duties, and tasks required of or performed by an operating system administrator on a periodic basis.

Research to learn the primary responsibilities, duties, and tasks required of or performed by an operating system administrator on a periodic basis. Categorize what you identify into time periods and briefly describe why each is important. You should be able to identify at least 7 major requirements of a sysadmin.   Research to find at least two examples of controls or countermeasures for each of the above security controls. Which do you believe are the most important and why?