OSI model

Networks

Please Do Not Touch Steve’s Pet Alligator!!

The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a network . The Open Systems Interconnection (OSI) model is a conceptual model created by the International Organization for Standardization which enables diverse communication systems to communicate using standard protocols. In plain English, the OSI provides a standard for different computer systems to be able to communicate with each other.

The OSI model can be seen as a universal language for computer networking. It’s based on the concept of splitting up a communication system into seven abstract layers, each one stacked upon the last.

There are two things you need to do here: 
1. simply state two layers (just their names)
2. you MUST be able to describe how communication is broken down into layers 

Graphic

I use this excellent diagram from Cloudflare

Standards

1. Describe how communication over networks is broken down into different layers.
2. List the stages in the OSI model

a group or system of interconnected people or things.

a group or system of interconnected people or things.

Give a specific name, value or other brief answer without explanation or calculation.

Give a detailed account or picture of a situation, event, pattern or process.

Give a detailed account or picture of a situation, event, pattern or process.

a group or system of interconnected people or things.

Give a sequence of brief answers with no explanation.