Data Communication Lesson 2

It is an operating system designed for the sole purpose of supporting workstations, database sharing, and application sharing and file and printer access sharing among multiple computers in a network.

• Star Topology

• Peer to Peer

• Network Operating System (NOS)

• Ring Topology

This layer is primarily responsible for preparing data so that it can be used by the application layer

This is the layer responsible for opening and closing communication between the two devices.

• Session Layer

• Presentation Layer

• Transport Layer

• Network Layer

It a type of topology which is each device in the network is connected to a central device called hub.

This layer of OSI model is responsible for end-to-end communication between the two devices.

• Session Layer

• Physical Layer

• Network Layer

• Transport Layer

A type of network which is created when two or more PCs are connected and share resources without going through a separate server computer.

• peer-to-peer (P2P)

• client-server network

• OSI Model

• Internet Model

„sometimes referred to as a protocol stack, can be considered a condensed version of the OSI model.

A combination of two or more topology

• Star Topology

• Ring Topology

• Hybrid Topology

• Bus Topology

It is a type of topology which each device is connected with the two devices on either side of it.

One of the 7 layer of OSI model which directly interacts with data from the user

• Presentation Layer

• Application Layer

• Transport Layer

• Network Layer