martin
Guest
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 Posted: Sat Aug 09, 2003 8:19 am Post subject: Re: Calculating SUBNETS in a Subnet: CONTRADICTION - Help pl |
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"martin" <bajelisNO@SPAM4MEozemail.com.au> wrote in message
news:3f345f41$0$23595$5a62ac22@freenews.iinet.net.au...
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Wendell Odom (In CCNA Certification guide 640-507) states:
" The number of subnets per network is defined by this formula:
2 ^ number of subnet bits
In some documents the number of subnets is shown as 2 less than 2^ number
of
subnet bits, implying two reserved cases. These two cases are no longer
reserverd, however and can be used."
Tod Lammle (In CCNA Study Guide 3rd Edition 640-607) states:
" How many subnets ? 2 ^x - 2 = number of subnets. x is the number of
masked
bits. "
So my quesiton is:
Which is correct FOR THE PURPOSES OF THE EXAM ???
Thanks,
Martin.
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I wasn't concentrating:
The question is how to calculate the number of SUBNETS, not HOSTS.
Sorry... the question is correct, but my subject is wrong :)
Cheers,
Martin |
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