What functions does a network operating system (NOS) provide?

A network operating system (NOS) is designed to support a range of networking functionalities and management capabilities within a networked environment. One of the primary functions of a NOS is to facilitate communication and resource sharing between computers and devices connected to a network. This includes providing tools for networking capabilities, which enable devices to connect and communicate with each other effectively.

In addition to networking capabilities, a NOS also manages user accounts and permissions. This user management function allows administrators to control access to network resources, ensuring that users can securely log in, access files, and share resources based on their roles and permissions. The ability to manage users is essential for maintaining security and organization within a network.

The other options indicate limited or incorrect functionalities of a NOS. For instance, while security settings are an important aspect of a NOS, they are only a part of a broader range of functions. File sharing is indeed a function of many NOS, but it does not encompass the full breadth of capabilities; hence limiting a NOS to file sharing ignores its networking functions and user management. Supporting hardware integration is also a function of some operating systems, but it does not define what a network operating system is or the services it provides comprehensively.