A network administrator is planning a network installation for a large organization. The design requires 100 separate subnetworks, so the company has acquired a Class B network address.
What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?
Correct Answer: D
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2 thoughts on “What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?”
D is correct, 2^7 subnet = 128 subnets, 2^9 hosts = 512 (510 hosts with 1 broadcast and 1 network address)
D does not provide 100 Subnetworks with each containing 500 host addresses. It is only a /23-Network which is offering 500 host addresses for its own.