4.Example of Networking, Post at least 5 examples with picture.

Example 1: Routed Ethernet w/ HomePNA Bridge	Example 2: Ethernet & Bridged HomePNA w/ Multiple IPs from ISP
Example 3: DSL with Wireless Access Point (w/ NAT routing)	Example 4: Ethernet, HomePNA, Wireless Combination
Example 5: Ethernet and Wireless Combination with Access Point

3.What is Networking?

networking = collaborative work, exchange of information, sharing of knowledge and capabilities, integrationnetworking = collaborative work, exchange of information, sharing of knowledge and capabilities, integration


2.What is OSI Layer?

The Open System Interconnection Reference Model (OSI Reference Model or OSI Model) is an abstract description for layered communications and computer network protocol design. It was developed as part of the Open Systems Interconnection (OSI) initiative.^[1] In its most basic form, it divides network architecture into seven layers which, from top to bottom, are the Application, Presentation, Session, Transport, Network, Data-Link, and Physical Layers. It is therefore often referred to as the OSI Seven Layer Model.

1.What is Network Topology?

Network topology is the physical interconnections of the elements (links, nodes, etc.) of a computer network.^[1][2] A local area network (LAN) is one example of a network that exhibits both a physical topology and a logical topology. Any given node in the LAN has one or more links to one or more other nodes in the network and the mapping of these links and nodes in a graph results in a geometrical shape that may be used to describe the physical topology of the network. Likewise, the mapping of the data flows between the nodes in the network determines the logical topology of the network. The physical and logical topologies may or may not be identical in any particular network.