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IT Interview Questions:What is subnet Mask ?
Information Technology (IT) Interview Questions and Answers
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IT Interview Questions:What is subnet Mask ?
A subnet (short for "subnetwork") is an identifiably separate part of an
organization's network. Typically, a subnet may represent all the machines at
one geographic location, in one building, or on the same local area network
(LAN). Having an organization's network divided into subnets allows it to be
connected to the Internet with a single shared network address. Without
subnets, an organization could get multiple connections to the Internet, one
for each of its physically separate subnetworks, but this would require an
unnecessary use of the limited number of network numbers the Internet has to
assign. It would also require that Internet routing tables on gateways
outside the organization would need to know about and have to manage routing
that could and should be handled within an organization.
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