Which Identifier to Use for DHCP Reservation for Windows Server?
Question
Your network contains an Active Directory Domain Services (AD DS) domain. The domain contains 10 servers that run Windows Server. The servers have static IPv4 addresses.
You plan to use DHCP to assign IPv4 addresses to the servers.
You need to ensure that each server always receives the same IPv4 address.
Which type of identifier should you use to create a DHCP reservation for each server?
Answers
Explanations
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A. B. C. D.D
In this scenario, you want to use DHCP to assign IPv4 addresses to 10 servers that run Windows Server in an Active Directory Domain Services (AD DS) domain. However, you need to ensure that each server always receives the same IPv4 address.
To achieve this, you can create a DHCP reservation for each server using a unique identifier that does not change. The DHCP reservation maps a specific IP address to a specific client device (in this case, each server), ensuring that the same IP address is always assigned to the same server.
Out of the options provided, the best identifier to use for DHCP reservations in this scenario is the Media Access Control (MAC) address. The MAC address is a unique identifier assigned to every network interface controller (NIC) in a device, and it does not change, making it an ideal identifier for DHCP reservations.
Using a fully qualified domain name (FQDN) or NetBIOS name for a DHCP reservation is not recommended because they can change. For example, if you change the name of the server, the FQDN or NetBIOS name would also change, which would break the DHCP reservation.
A universally unique identifier (UUID) is also not recommended because it is not tied to a specific network interface, and it is not guaranteed to be unique in all cases.
Therefore, the correct answer is D. MAC address.
