Which of the following would allow for a specific device to receive the same IP address from a DHCP server?

A scope defines the entire pool (range) of IP addresses a DHCP server can distribute to clients, not a fixed assignment for a specific device.

A DHCP reservation (also called a static mapping or host reservation) is a configuration entry on the DHCP server that maps a client's unique MAC address to a predetermined IP address. Every time that specific device requests an address, the server recognizes its MAC address and assigns the reserved IP, combining the management convenience of DHCP with the address consistency of a static assignment.

A DNS suffix is a domain name appended to unqualified hostnames for DNS resolution and has no bearing on IP address assignment.

A lease is the time duration for which a DHCP-assigned address is valid before it must be renewed; it does not guarantee the same address will be given each time.