What best describes DHCP reservation?

DHCP reservation is best described as a mechanism that allows specific devices to always receive the same IP address. This is accomplished by the Dynamic Host Configuration Protocol (DHCP), which helps manage IP address assignment dynamically. With DHCP reservation, certain devices – identified by their MAC addresses – are assigned fixed IP addresses from the DHCP server, ensuring that these devices always receive the same IP address whenever they connect to the network.

This capability is particularly useful for devices that require consistent networking settings, such as printers, servers, or other critical infrastructure components, where it’s important for them to have a stable IP address for reliable communication within the network.

The other choices do not accurately reflect the nature of DHCP reservation. For instance, dynamic IP address assignment is meant for devices that do not require a static address, while subnet configurations and disabling IP address assignments pertain to different aspects of network management and are not related to the concept of DHCP reservation.