OSI MODEL LAYERS
OSI MODEL LAYERS : OSI stands for Open source interaction. OSI has 7 layers are as follows :→ (1) Application Layer (2) Presentation Layer (3) Session Layer (4) Transport Layer (5) Network Layer (6) Data Link Layer (7) Physical Layer * Trick to remember : "Please do not throw sausage-pizzas away." (Please → Physical layer) (Do→ Data link layer) (Not→ Network layer) (Throw→ Transport layer) (Sausage→ Session layer) (Pizzas→ Presentation layer) (Away→ Application layer)