Around which three DWDM technologies is the Cisco NCS 2000 Series optimized? (Choose three.)
A. Flex Spectrum
B. SONET/SDH switching
C. dispersion compensation
D. coherent wavelengths
E. touchless ROADM
F. arrayed waveguide gratings
Around which three DWDM technologies is the Cisco NCS 2000 Series optimized? (Choose three.)
A. Flex Spectrum
B. SONET/SDH switching
C. dispersion compensation
D. coherent wavelengths
E. touchless ROADM
F. arrayed waveguide gratings