Block 3 Unit 4a

Question 1

Cisco’s hierarchical internet working model is a______ model for______ design first proposed by Cisco.

Question 2

The three layers of the Cisco hierarchical internet working model, from top to bottom, are the ______, _____, and _____ layers

Question 3

The core layer is often called a ______ backbone.

Question 4

Given the function of the core layer, what process should you consider when determining wheather to add additional routers to an existing core.

Question 5

Given the function of the core layer, the decision to use technologies like Data Link Layer, fiber optics, or ATM would correlate to what process.

Question 6

What process of the core layer specifically works to avoid things that may slow down the core layer like ACL checking, data encryption, and address translate using proper routing and convergence methods.