Dynamic Host Configuration Protocol - automatically assigns IP addresses to devices on a network. Like having an automated reception desk that gives each visitor a temporary ID badge.
When you connect to WiFi, DHCP automatically gives your device an IP address so it can communicate on the network.
DHCP is an open networking protocol, not a single cloud service. In cloud environments, DHCP functionality is typically built into the provider’s virtual network and is used automatically to assign private IP addresses to instances/VMs and other resources. You usually configure it indirectly (e.g., via subnet settings, DNS options, or instance network settings) rather than running a standalone managed “DHCP service.”