Assume that an office has three departments and each department has 50 to 70 employees who are using computers with Windows operating systems. The office space is designed in such a way that an employee can use any computer within a department. Once an employee logs in from a computer, he/she will get access to his files from the server. Let you are planning for network and server setup for this company.
a. What is Active Directory? Do you need an Active Directory for such an office? If yes, briefly explain its use under this circumstance.
b. What is a subnet? What benefits will you get using subnets for this office?