What protocol is primarily used to automatically assign configuration details to devices on a network?

Dynamic Host Configuration Protocol (DHCP) is the correct choice as it is specifically designed to automate the process of assigning configuration details, such as IP addresses, subnet masks, default gateways, and DNS server addresses, to devices on a network. This protocol simplifies the management of IP address allocation and ensures that devices can communicate effectively within a network without the need for manual configuration.

When a device connects to the network, it sends a broadcast request for an IP address. The DHCP server responds with an available IP address and the necessary configuration parameters. This not only saves time and reduces human error but also allows for efficient use of IP addresses in dynamic environments, such as those found in large organizations or public Wi-Fi networks.

Other protocols mentioned do not perform this specific function. Transmission Control Protocol (TCP) is responsible for reliable data transmission over a network but does not handle configuration assignments. Internet Protocol Version 4 (IPv4) is a protocol used for addressing and routing packets on a network but does not facilitate the automatic assignment of configurations to devices. Simple Network Management Protocol (SNMP) is used for network management and monitoring, allowing network administrators to manage network performance, but it does not assign configuration details to devices.