ip subnet-zero and subnetting on the CCNA test.

ip subnet-zero and subnetting on the CCNA test.

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Subject Author Date
ip subnet-zero and subnetting on the CCNA test. MrBigglesworth 06-24-2006
Posted by MrBigglesworth on June 24, 2006, 5:14 pm
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I'm studying Lammle's Fifth edition study guide for the CCNA and see
the subject of ip subnet-zero and now to find the number of subents it
is 2 to the power of 2 for the number of bits in your subnet mask
depending on your class.

It is no longer the 2 to the above -2 to find the number of subnets
available.

It is easy to figure both ways as you simply no longer subtract,
however, does the CCNA test for its subnet questions tell you if ip
subnet-zero is enabled or do you assume that it is now on.

I really don't want to blow the test on the subnet calcs.


Posted by corb on June 27, 2006, 5:04 pm
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> I'm studying Lammle's Fifth edition study guide for the CCNA and see
> the subject of ip subnet-zero and now to find the number of subents it
> is 2 to the power of 2 for the number of bits in your subnet mask
> depending on your class.
>
> It is no longer the 2 to the above -2 to find the number of subnets
> available.
>
> It is easy to figure both ways as you simply no longer subtract,
> however, does the CCNA test for its subnet questions tell you if ip
> subnet-zero is enabled or do you assume that it is now on.
>
> I really don't want to blow the test on the subnet calcs.
>

In the exam, for each question if applicable it will tell you if the Ip
subnet-zero command is in use (normally it is now), or in a sim view the
config.



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