What are the requirements for installing an Exchange Server?

The installation of an Exchange Server requires a specific environment to function correctly. This includes the need for a Windows Server operating system because Exchange is designed to run on server-grade Windows platforms rather than consumer versions. Additionally, Active Directory is essential because Exchange Server relies on it for user authentication, directory services, and for managing the Exchange organization.

Moreover, sufficient hardware specifications are mandatory to support the server's performance and functionality. This means that there are minimum requirements regarding CPU, RAM, disk space, and other resources needed to ensure that Exchange Server operates efficiently. Without these components, the server may face performance issues or fail to install correctly.

The other choices do not adequately encompass the necessary requirements. A single operating system isn’t sufficient without Active Directory integration and adequate hardware. A desktop PC typically does not meet the rigorous specifications required for running Exchange Server, and relying solely on cloud infrastructure overlooks the need for a compatible Windows server environment and directory services for Exchange to function properly.