OSI Model

Question 1

What does the acronym, Please Do Not Throw Sausage Pizza Away represent?

Answer 1

The seven layers of the OSI Model.

Layer 1 - Physical
Layer 2 - Data Link
Layer 3 - Network
Layer 4 - Transport Layer
Layer 5 - Session
Layer 6 - Presentation
Layer 7 - Application

Question 2

What does the acronym, Do Some People Forget Birthdays represent?

Answer 2

This is how data flows through the OSI Model.

Layer 7 - Data }
Layer 6 - Data }
Layer 5 - Data }
Layer 4 - Segments
Layer 3 - Packets
Layer 2 - Frames
Layer 1 - Bits

Question 3

What does the TCP/IP model look like in contrast to the OSI Model?

Answer 3

Layer 7 - Application
Layer 6 - Application
Layer 5 - Application
Layer 4 - Transport
Layer 3 - Internet
Layer 2 - Network Interface
Layer 1 - Network Interface