what is difference between subnet-mask and wildcard mask?

Answer Posted / s.m.feroz ahmed

Hi,

Subnet mask is classified on class A,B,C,D,E at present we
are making use of class C ip addressing and the series of
class C starts from 191 to 227 so depending on class subnet
mask is defined for Class A subnet mask is 255.255.255.0
for Class B it is 255.255.0.0 and class C it is 255.0.0.0
and wildcard mask is just opposite to Subnet mask and it is
defined as 0.0.0.255 .

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