Optical electro-conversions takes place in _________________ networks.
A. Sessional
B. Optical packet-switched
C. Optical circuit-switched
D. Circular
What is the main disadvantage of OCS?
A. Regenerating mechanism
B. Optical session
C. Time permit
D. Disability to handle burst traffic
___________ is an example of a static circuit-switched network.
A. Oxc
B. Circuit regenerator
C. Packet resolver
D. Sdh/sonet