Sorry for worming into this thread, but now I have a question ...
It's easy to see that the useable address range is answer C (184.108.40.206 to
220.127.116.11) but the subnet range is shown by answer A (18.104.22.168 to
22.214.171.124). I'm assuming it is the wording that determined the correct response.
Is it normal for the tests to differentiate between a subnet range and an IP address range by these terms? My biggest problem with these things is getting stung by the wording. Thanks for any response given.
126.96.36.199 - class B address - means /16
16+12 = 28 so mask is 255.255.255.240
subnet range and ip address range are similar. Every IP is in a subnet. But this question only asked for IP ragnes within a particular subnet. And the answers only involved that. The Q didn't say FSLM or VLSM, though i think it makes no diff. It just asks about that subnet.
If it were FLSM then you get a range of subnets which you could list. You would specify them with an IP and a mask, like the question gave. Or you coudl list each individual one. They won't go up in increments, I don't think an "a.b.c.d - e.f.g.h" range is suitable
To cut a long story short. The Q asked for IP range. The Ans were clearly all ok as IP Ranges. I wouldn't even think of interpreting them as subnet ranges.
C is usable IP range. A is possible IP range.
the ranges are prob distinguished by terms like usable vs possible. usable being restricted. possible being all subnets allowed.