C
A DHCP lease is a temporary assignment of an IP address and other network configuration parameters (such as DNS and gateway) to a device. The lease is renewed periodically to maintain the assignment.
Why Not A (A definition of the scope of addresses): The DHCP scope defines the range of IP addresses but is not the lease itself.
Why Not B (A reservation of an IP configuration): DHCP reservations ensure a specific device always receives the same IP address, but this is not the lease.
Why Not D (A translation of network names to IP addresses): This describes DNS, not DHCP.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 2.6, DHCP concepts.
C. A temporary assignment of an IP configuration to a device on the network
A DHCP lease is a temporary assignment of an IP address, subnet mask, default gateway, and DNS server information to a device on a network. This assignment is typically for a specific duration, such as 24 hours. Once the lease expires, the device can request a new lease or be assigned a different IP address.
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