What is the primary function of a DHCP server?

A DHCP server, or Dynamic Host Configuration Protocol server, plays a crucial role in network management by automatically assigning IP addresses to devices connected to a network. This process simplifies the setup of network devices, such as computers, printers, and mobile devices, by removing the need for manual configuration. When a device connects to the network, it sends a request to the DHCP server, which then responds by providing an available IP address from a predefined range, along with other necessary network configuration parameters like the subnet mask and default gateway.

This automatic allocation of IP addresses significantly enhances network efficiency and helps prevent IP address conflicts, which can occur when multiple devices are assigned the same IP address. By handling this essential function, a DHCP server allows network administrators to manage IP address assignments dynamically, making it easier to accommodate new devices as they join the network.

In contrast, other functions such as allocating CPU resources, managing user permissions, and ensuring system security are unrelated to the specific purpose of a DHCP server. These functions are typically managed by different components or systems within a network infrastructure.