What role does DHCP play in a network?

Dynamic Host Configuration Protocol (DHCP) is a critical protocol used in networking to automatically assign IP addresses and other necessary network configuration parameters to devices connected to the network. When a device connects to the network, it sends a request to the DHCP server. The server then responds by providing an available IP address from its pool, as well as other details like the subnet mask, default gateway, and DNS servers. This automation simplifies network management, reduces the potential for IP address conflicts, and ensures that devices can easily join the network without requiring manual configuration by network administrators.

The other options describe functions that are not within the purview of DHCP. While managing network security is an essential component of network administration, DHCP does not perform security management duties. Similarly, DHCP does not directly improve network speed or connect devices to wireless networks; those functions are handled by other components and protocols within the network infrastructure.