Large-Scale IP Network Solutions (CCIE Professional Development)

Review Questions

1:	How long is an IP address?
2:	When is the best time to perform subnet masking? When is not good practice to use it?
3:	What is route aggregation? When should it be utilized?

Answers:

A1:	An IP address is 32 bits long and is divided into four octets. Each octet is separated by a dotted decimal, as in 131.108.1.1.
A2:	Subnet masking is necessary for any IP network, even when you have a single interface and cannot attach thousands of hosts. If you have a large number of hosts in your network, you should subnet to separate broadcast domains.
A3:	Route aggregation deals with groupings of contiguous addresses. You should perform it as a regular practice whenever you have a contiguous block of addresses, or major nets that are all behind ...