Given 202 55 56 0 a What is the default subnet mask b What i
     Given 202. 55. 56. 0.  a.  What is the default subnet mask?  b.  What is the new subnet mask if need to provide for S3 hosts per network?  8.  For a Class C network address,  what is the optimal number of bits you need to borrow to provide for:  a.  28 networks?  b.  28 hosts/network?  c.  8 networks   
  
  Solution
To divide a given network address into two or moresubnets, you use subnet masks. The default subnet masks for class A networks is 255.0.0.0, for class B is 255.255.0.0, and for class C is 255.255.255.0, which signify a network withoutsubnets.

