1) Write down the name of some layers of SONET and describe its functions.
2) Describe SONET frame in detail with a neat and suitable diagram.
3) What do you mean by bridges?
4) Write down the difference between bridges and repeaters.
5) Describe the loop problems solved by bridges in detail.
6) What do you mean by the network support layers and the user support layers?
7) With a neat and well labelled diagram describe the relationship of IEEE Project to OSI model?
8) Write down the functions of LLC.
9) Write down the functions of MAC?
10) What do you mean by protocol data unit?
11) Describe headers and trailers and how do they get added and removed?
12) Write down the responsibilities of network layer.
13) What do you mean by a virtual circuit?
14) What do you mean by a data grams?