THE OSI MODEL

MOC Networking

Created: 2022-06-30
Tags: #literature


The OSI Model (Open Systems Interconnection) is a standardised model which we use to demonstrate the theory behind computer networking. In practice, it's actually the ==more compact TCP-IP Model that real-world networking is based off==

The OSI Model has seven layers
7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link

  1. Physical
    or
  2. All
  3. Prostitutes
  4. Seem
  5. To
  6. Need
  7. Double
  8. Penetration

7- Application Layer

  • Gives networking options to programs running on a computer

6 - Presentation Layer

  • Translates data received from application layer to standardised format
  • Handles encryption, compression etc..

5 - Session Layer

  • Set-ups a connection between other computer across network

4 - Transport Layer

  • Chooses the protocol on how data will be delievered.
  • These is where TCP and UDP happens.

3 - Network Layer

  • Locates the destination of your request
  • Receives packet from network layer and adds in MAC Address at endpoint
  • Verifies if data hasn't been corrupted

1 - Physical Layer

  • Converts electrical pulses into binary data and vice versa

References