Hi Andy, On Tue, May 19, 2009 at 3:32 PM, Andy Goldschmidt < [email protected]> wrote:
> In this topic : > 109.1 Demonstrate an understanding of network masks > > Does that mean we need to know what a class A, B and C network is ? > e.g. Class C is 255.255.255.0 or /24 > > Should we know that in CIDR /25 equals to netmask 255.255.255.128 ? > > > Do we need to be able to work out the Network Address if we are given the > IP and Netmask ? > What about working out the Broadcast address ? > The above involves converting to binary and then doing addition etc to > work out the answer. > I would say yes to all the question. Those are quite common tasks for a network administrator. You can also add: find the number of IP available for a given mask. Note: 255.255.255.0 or /24 does not imply class C, you have to check the first bit(s) of the IP to know the class. Regards, Benjamin
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