Types of Network Topology
A network topology is the arrangement of a network , including its nodes and connecting lines. There are two ways of defining network geometry: the physical topology and the logical (or signal) topology .
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The TCP/IP Reference Model
TCP/IP means Transmission Control Protocol and Internet Protocol. It is the network model used in the current Internet architecture as well. Protocols are set of rules which govern every possible communication over a network. These protocols describe the movement of data between the source and destination or the internet. These protocols offer simple naming and addressing schemes.
Networking - The OSI Model
The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. You must at first understand that OSI model is not tangible rather it is conceptual.