HI,
what is correct answer and why for this test:
Which IP address range is allowable given an IP address 172.37.2.56 and
12-bit subnetting?a) 172.37.2.48 to 172.37.2.63 b) 172.37.2.48 to 172.37.2.62 c) 172.37.2.49 to 172.37.2.62 d) 172.37.2.49 to 172.37.2.63 e) 172.37.2.55 to 172.37.2.126
Thx
DrBrain napisa=B3(a):
172.37.2.56 - class B address - means /16 16+12 =3D 28 so mask is 255.255.255.240Answer c) subnet 172.37.2.48 broadcast 172.37.2.63 usable addresses: 172.37.2.49 - 172.37.2.62
Hope it's cler now
------------------------ Ern
Are you sure 12-bit subnetting ?
correct
I thinked the subnet was 255.240.0.0 and not 255.255.255.240.
Thx very much db
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 (172.37.2.49 to
172.37.2.62) but the subnet range is shown by answer A (172.37.2.48 to 172.37.2.63). 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.
Ken
172.37.2.56 - class B address - means /16 16+12 = 28 so mask is 255.255.255.240Answer c) subnet 172.37.2.48 broadcast 172.37.2.63 usable addresses: 172.37.2.49 - 172.37.2.62
Hope it's cler now
------------------------ Ern
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.
Cabling-Design.com Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.