Ccna routing and Switching Complete Study Guide

Identify the advantages of subnetting.    Benefits of subnetting a physical network include 

reduced network traffic, optimized network performance, simplified management, and 

facilitated spanning of large geographical distances.

Describe the effect of the 

ip subnet-zero

 command.    This command allows you to use 

the first and last subnet in your network design.

Identify the steps to subnet a classful network.    Understand how IP addressing and subnet-

ting work. First, determine your block size by using the 256-subnet mask math. Then count 

your subnets and determine the broadcast address of each subnet—it is always the number 

right before the next subnet. Your valid hosts are the numbers between the subnet address 

and the broadcast address.

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Written Labs