1) Describe unidirectional path switched rings used in the protection of SONET / SDH in detail.
2) Describe the protection in IP with an example.
3) Sketch the block diagram of wavelength routing PON (WRPON) and describe its working.
4) Describe the functions of each element of an access network with a neat architectural diagram.
5) Describe optical time division multiplexing (OTDM) with a neat figure.
6) Describe the following:
i. Recirculation Buffering
ii. Burst Switching
7) Describe architectural choices for next generation transport networks with neat diagrams.
8) Describe how the transmission capacity of the optical link is increased by SDM.