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Your network contains three servers that run Windows Server 2012 R2. The servers are configured as shown in the following table.
Server3 is configured to obtain an IP address automatically.
You need to prevent Server3 from receiving an IP address from Server1.
What should you create on Server1?
A. A reservation
B. A filter
C. A scope option
D. An exclusion
Correct Answer: B
Explanation/Reference:
Explanation:
A. For clients that require a constant IP address
B. Filter to exclude MAC address of Server3
C. Range of allowed IPfs to be assigned
D. Exclude range of IPfs
MAC address based filtering ensure that only a known set of devices in the system are able to obtain an IPAddress from the DHCP Reservation and Exclusion, two incredibly different concepts. An exclusion is an address or range of addresses taken from a DHCP scope that the DHCP server is not allowed to hand out. For example, if you have set a DHCP server to exclude the address range 192.168.0.1-192.168.0.10 then the only way a computer on your network would get an address of 192.168.0.4 would be if you assigned it statically on that machine. This is because DHCP knows NOT to give this range of IP addresses out.
A reservation is a specific IP addresses that is tied to a certain device through its MAC address. For example, if we have a workstation on the network that requires a certain IP address, but we donft want to go through to trouble of assigning it statically, then we can create a reservation for it. So if the MAC address of the NIC on the computer is AA-BB-00FF-CC-AA and we want it to maintain the IP address of 192.168.0.100 then we would create a DHCP reservation under that particular scope saying that the IP address 192.168.0.100 is reserved only for the MAC address AA-BB-00-FF-CC-AA.
Reference: http://technet.microsoft.com/en-us/magazine/ff521761.aspx
