Day: January 18, 2019

OSI application layer
Networking

Application layer in the OSI model

The main functions of the Application layer The Application layer is the highest layer in the OSI model (marked with a green dot in the following illustration). The name “Application” has nothing to do with any software or applications you install on your PC. It only refers to a set of tools that an application […]

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presentation layer OSI
Networking

Presentation layer in the OSI model

In this article we’re going to take a look at the sixth layer in the OSI model. The Presentation layer (marked with a green dot in the picture below) is responsibility for several tasks. Data Formatting is the first duty of this layer. It consists of converting different character set. The second task of the […]

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session layer OSI
Networking

Session layer in the OSI model

The Session layer is the fifth layer in the OSI model (as shown with a green dot in the picture below). This layer has the job of managing the communication between two endpoints in a connection. The session layer’s job is to set rules for two computers who want to establish and synchronize a transfer […]

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Transport layer
Networking

Transport layer in the OSI model

The Transport layer is the fourth layer in the OSI model. This layer’s job is to check whether the data has been delivered to the destination without any error during the transmission process. When sending data, this layer is responsible for dividing big packets into smaller packages according some technical rule that we’ll go though […]

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