What is the purpose of a network management system (NMS)?

A network management system (NMS) serves the crucial role of monitoring and managing network performance. It oversees the operation of both hardware and software components within a network, ensuring that everything is functioning optimally. The NMS collects data such as traffic levels, error rates, and utilization metrics. By analyzing this information, it enables network administrators to detect issues, optimize performance, and maintain the reliability of network services.

This comprehensive monitoring allows for proactive management; issues can be resolved before they escalate into larger problems that could disrupt business operations. In addition, an NMS can help in capacity planning by providing insights into network usage and trends over time, aiding organizations in making informed decisions about upgrades or expansions.

The other choices relate to aspects that fall outside the primary function of network management systems, which focuses specifically on monitoring and managing the performance of networks rather than providing antivirus protection, enhancing productivity directly, or securing data transmissions.