Describe and Sketch a Two Tier,three Tier and N-Tier Architecture

Describe and sketch a two tier,three tier and n-tier architecture.What is a network architecture? Compare and contrast two-tiered,three-tiered,and n-tiered client server architectures.What are the technical differences and what advantages and disadvantages do each offer? How does a 2-tier client server network differ from an n-tier client server network.Describe one advantage and one disadvantage that a 3-tier architecture has compared to a 2-tier architecture.