Protocol Layers | 3.2 | OCR GCSE Computer Science | J277

5 flashcards

Layer

A group of protocols with similar functions.

Why do some protocols use layers? (e.g. TCP/IP)

Because each layer has a specific function, each layer can be updated or fixed without affecting the whole protocol.

Advantage - What does it mean for a layer to be 'self-contained'?

A developer can edit a layer without affecting the other.

Advantage - What do layers do for a developer?

They simplify the design of the protocol.

What does layering ensure?

Since each layer uses protocols, layering ensures that each protocol is applied in the correct order.