1) describe the SONET frame structures in detail.

2) Describe the following functions of ATM in detail:

i. Connections and cell forwarding

ii. Signaling and Routing

2) Describe different OADM architectures with neat and well labelled diagrams.

3) Design the block diagram of broadcast and select ROADM and describe its functioning.

4) Describe cost tradeoffs by considering a PWDM ring architecture.

5) Describe light path topology design (LTD) problem in brief.

6) prepare down the main attributes of optical layer (lightpath) service.

7) Describe adaptation management in WDM optical networks with neat diagrams.