My User Center 
- Optical
- Nokia Optical Design Expert
- Nokia Optical Network Professional
- Nokia Optical Network Services Expert
| 642-321 | Cisco Optical SDH Exam (SDH) | $0.00 $0.00 |  |
| 642-311 | Cisco Optical SONET Exam (SONET) | $0.00 $0.00 | |
| 4A0-255 | Nokia Advanced Optical Network Design | $88.00 $68.00 | |
| 4A0-205 | Nokia Optical Networking Fundamentals | $88.00 $68.00 | |
| 4A0-220 | Nokia GMPLS-Controlled Optical Networks | $88.00 $68.00 | |
| 4A0-265 | Nokia Optical Diagnostics and Troubleshooting | $88.00 $68.00 | |
