A network administrator is setting up a DHCP server for a new subnet. To ensure specific department devices always receive the same IP addresses whenever their devices connect to the network, which DHCP setting should the administrator configure?
The correct configuration to ensure a specific device always receives the same IP address is to use reservations. DHCP reservations bind a specific IP address to the MAC address of a device, guaranteeing that this device receives the same IP address each time it connects to the network. In contrast, exclusions are used to prevent certain IP addresses from being assigned from a scope; scope defines the entire range of possible IP addresses that can be assigned to devices; and lease time determines how long a device holds an IP address before it must renew its DHCP configuration.
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What exactly are DHCP reservations?
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How do exclusions work in DHCP?
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What is the difference between DHCP lease time and reservations?