1.7 Network Architectures

Question 1

In Three-Tiered Network Hierarchy, what is the purpose of core layer?

Answer 1

• Its purpose should be kept simple: provide redundant traffic paths for data to continue to flow around the access and distribution layers of the network.
• Routers or layer 3 switches in the core layer establish a full mesh topology with switches in distribution layer blocks.

Question 2

What is Three-Tiered Network Hierarchy?

Answer 2

A hierarchical model breaks down a large and complex network design into smaller
sections based on the functions performed

Question 3

What are the three-tiered hierarchy:

Answer 3

three-tiered hierarchy: access, distribution,
and core

Question 4

Purpose of Distribution/Aggregation Layer

Answer 4

• provides fault-tolerant interconnections
  between different access blocks and either the core or other distribution blocks.
• provides fault-tolerant interconnections
  between different access blocks and either the core or other distribution blocks.

Question 5

Purpose of Access/Edge Layer?

Answer 5

The access or edge layer allows end-user devices, such as computers, printers, and smartphones to connect to the network.