What is the function of a DHCP server in a network?

The function of a DHCP (Dynamic Host Configuration Protocol) server in a network is to assign IP addresses to devices automatically. This process eliminates the need for manual configuration of IP addresses on each device within the network, streamlining network setup and management. When a device connects to a network, the DHCP server dynamically allocates an available IP address from a predefined pool of addresses, along with other necessary network configuration data such as the subnet mask, default gateway, and DNS servers. This automated allocation ensures that there are no IP address conflicts and that the devices can communicate effectively within the network.

In contrast, managing domain names is typically the domain of DNS (Domain Name System) servers, which translate human-readable domain names into IP addresses. The security of network traffic often falls under the purview of firewalls, VPNs, and other security measures, rather than a DHCP server. Monitoring internet speed involves using tools that assess the performance of network connections, which is not a function of DHCP. Each of these roles is distinct and highlights the specialized functions of different types of network services.