Mark works as a Network Administrator for Infonet Inc. The company has a Windows Server 2008
domain-based network. The network uses only IPv4 as the network protocol. The network has
twenty-five subnets. Each subnet has 1000 Windows Vista client computers. In the future, the
company’s network may expand to include up to sixty subnets with 1000 hosts per subnet. Mark
wants to assign a subnet mask to the network according to the future requirements. Which of the
following subnet masks will he assign to the network to accomplish this?
A.
255.255.254.0
B.
255.255.240.0
C.
255.255.224.0
D.
255.255.252.0
Explanation: