70-282 Question #113: Real Exam Question with Answer & Explanation

You are the network administrator for Company. The company's main office has 30 users. There are three branch offices with five users in each. All offices connect to the Internet through a broadband connection. You purchase a new server to store company data in a central location and to host internal e-mail accounts of users. You must ensure that users can access the new server in the main office through the Internet. You must also ensure that users can access e-mail messages that hosted on the new server. You need to choose and install an operating system that will meet these requirements. You need to achieve these goals while minimizing costs. What should you?