Câu 46: 400-007: Cisco Certified Design Expert

Which two advantages of using DWDM over traditional optical networks are true? (Choose two.)

1. A. inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol
2. B. inherent topology flexibility with built-in service protection — đáp án hiện tại
3. C. ability to expand bandwidth over existing optical infrastructure — đáp án hiện tại
4. D. inherent topology flexibility with intelligent chromatic dispersion
5. E. inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation