Advanced Infrastructure Penetration Testing

Open Systems Interconnection model

Networking is a vital component in every modern organization and for every individual. To facilitate data communication and handling, the Open Systems Interconnection (OSI) standardization model has evolved. The data moves around networks following a specific order. This order is presented by seven steps and layers; the OSI model contains seven layers. You can remember the layers from top to bottom using this phrase All People Seem To Need Data Processing:

• Application layer: This layer contains all the required services for software applications.
• Presentation layer: This layer is mostly responsible for how the data is presented. The operations may include compression and encryption.
• Session layer: This ...