I have a really daft question for you all.
I have just taught myself subnetting which I am fine with, but whilst practicing on various questions I see the answers refering to both Network ID and Subnet ID. Are these two terms interchangable or Is there a difference, if so what is it?
In the real world, people use them interchangably (this is the way I've always looked at it). I guess the real definition comes in where you talk about classful and classless networking (as this is where CIDR/subnetting was involved). So a class C 192.168.0.0/24 address would be a network. If we were to subnet it, lets say we want to have 8 subnets, we would have
Each of these subnets would be part of the major classful network of 192.168.0.0/24.
But the word subnet and network are used interchangably
Stephen, thanks for that, it makes perfect sense. Martin, your right, I need to learn the correct terminology for the exam, I'm finding that even though I know the answer to questions I am making silly mistakes and getting them wrong - its just like learning to pass your driving test.
Thanks for your help
What's up GAV,
In support of Stephen's and Martin's answers and for your exam terminology reference, CH 12 pg 263, 640-822 OCG 3rd ed. The key topic says subnet number is also called subnet ID or subnet address...numerically the smallest number in the subnet and cannot be used by a host, just as Stephen pointed out
and so on...
with .0 and .32 being the subnet ID