B is the correct answer.
----- Original Message -----
From: Andy <[EMAIL PROTECTED]>
To: Hunt Lee <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Saturday, February 03, 2001 9:40 AM
Subject: Re: Subnet questions
>
>
> On Sun, 4 Feb 2001, Hunt Lee wrote:
>
> > I have three subnet / route summarization questions but I don't
> > understand the answer, any help would be greatly appreciated.
> >
> > Q1) Choose the appropriate classless network address and broadcast
> > address for the IP address 10.6.38.50 with a subnet mask of
> > 255.255.240.0
> >
> > A) 10.6.38.49 and 10.6.38.62
> >
> > B) 10.6.32.0 and 10.6.47.255
> >
> > C) 10.6.38.0 and 10.6.38.255
> >
> > D) 10.0.0.0 and 10.255.255.255
> >
> > Answer is B.
>
> No its not. The answer is 10.6.38.48 and 10.6.38.63. It probably meant to
> say classful.
>
> > Q2) Given a classless route summarization of 72.8.0.0 /13. Which IP
> > address fall into this scope?
> >
> > A) 72.15.36.8
> >
> > B) 72.13.1.1
> >
> > C) 72.8.20.10
> >
> > D) 72.7.200.100
> >
> > E) 72.16.7.4
> >
> > F) 72.40.1.8
> >
> > Answer is A, B & C - why isn't E the ansewr as well?
>
> The range of 72.8.0.0/13 is 72.8.0.0 - 72.15.255.255. Its 8 Class B's.
>
> > Q3) When using classless supernetting, which route best summarizes
> > the following networks?
> >
> > 192.168.9.0
> > 192.168.10.0
> > 192.168.11.0
> > 192.168.12.0
> >
> > A) 192.168.0.9 / 20
> >
> > B) 192.168.0.0 / 16
> >
> > C) 192.168.9.0 / 22
> >
> > D) 192.168.8.0 / 21
> >
> > I thought D is the answer, but the answer is C.
>
> A /22 is 4 Class C's, a /21 is 8. I recommand finding or making (to
> actually learn it) a subnet table and just keeping referencing it until
> you don't need to anymore.
>
> andy
>
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