Advanced IP Network Design (CCIE Professional Development)

Answers to Chapter 1 Review Questions

1:	Why is the topology of the network so important? Are the topology and the logical layout of a network the same thing?
A1:	The topology directly affects the stability of the network. No.
2:	Why are hierarchical networks built in "layers"?
A2:	To break the problem domain into smaller, more manageable pieces. The concept of hierarchical design is similar to the OSI model, which breaks the process of communication between computers into layers, each having different design goals and criteria.
3:	Note the layer of the network in which each of these functions/services should be performed and why: Summarize a set of destination networks so that other routers have less information to process. Tag packets for quality ...