1.
What is a reasons for using layered protocols?
What is one possible disadvantage of using layered protocols?
Solution
Reasons for using Layered protocols:
1. Layering of protocols provides well-defined interfaces between the layers, so that a change in
one layer does not affect an adjacent layer.
2. The protocols of a network are highly complicated and designing them in layers make their
implementation more feasible.
Possible disadvantage of using Layered Protocol:
Each layer potentially puts overhead both in terms of information stored in protocol headers and
processing time.