Cisco Certified Support Technician (CCST) NetworkingIP ServicesEasy
A network administrator is configuring a DHCP server. They want to ensure that a specific server always receives the same IP address from the DHCP pool, even if the server reboots or its lease expires. Which DHCP feature should the administrator implement?
- ADHCP Snooping
- BDHCP Relay
- CDHCP Reservation
- DDHCP Exclusion
Show answer & explanationAnswer & explanation
Correct answer: C. DHCP Reservation
DHCP reservation ensures that a specific device, identified by its MAC address, always receives the same IP address from the DHCP server. This is crucial for servers or network devices that require a consistent IP address.
Why the other options are wrong
- A. DHCP snooping is a security feature that prevents unauthorized DHCP servers.
- B. DHCP relay forwards DHCP requests between clients and servers on different subnets.
- D. DHCP exclusion prevents specific IP addresses from being assigned by the DHCP server.
DHCP Reservation
A DHCP reservation is a configuration on a DHCP server that guarantees a specific IP address is always assigned to a particular network device, identified by its MAC address.
- Ensures consistent IP assignment for specific devices.
- Based on the device's MAC address.
- Useful for servers, printers, and network infrastructure.
Memory trick: Reserve a spot for your favorite device.