N10-005 Question #373: Real Exam Question with Answer & Explanation

The correct answer is A: Reservations. A DHCP reservation binds a specific IP address to a specific device's MAC address. Once reserved, that IP address is set aside exclusively for that device and will not be leased to any other computer on the network, effectively excluding it from the general dynamic pool. This is

Question

Which of the following DHCP options is used to exclude IP addresses from being distributed to other computers?

Options

AReservations
BSuffixes
CLeases
DGateways

Explanation

A DHCP reservation binds a specific IP address to a specific device's MAC address. Once reserved, that IP address is set aside exclusively for that device and will not be leased to any other computer on the network, effectively excluding it from the general dynamic pool. This is commonly used for servers, printers, and other devices that need a consistent IP. Leases define how long an IP is assigned dynamically; suffixes (DNS suffixes) are used for name resolution; and gateways specify the default router - none of these prevent an IP from being assigned to other clients.

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