Cisco
352-001 · Question #556
352-001 Question #556: Real Exam Question with Answer & Explanation
The correct answer is A: Inherent topology flexibility with intelligent chromatic dispersion. DWDM's primary advantages over traditional optical networks are wavelength-division multiplexing that expands capacity over existing fiber and inherent topology flexibility enabled by chromatic dispersion management.
Question
Which two options describe the advantages of using DWDM over traditional optical networks? (Choose two)
Options
- AInherent topology flexibility with intelligent chromatic dispersion
- BInherent topology flexibility and service protection provided without penalty through intelligent
- CInherent topology flexibility with built-in service protection
- DInherent topology flexibility with a service protection provided through a direct integration with an
- EAbility to expand bandwidth over existing optical infrastructure
Explanation
DWDM's primary advantages over traditional optical networks are wavelength-division multiplexing that expands capacity over existing fiber and inherent topology flexibility enabled by chromatic dispersion management.
Common mistakes.
- B. Claiming DWDM provides service protection 'without penalty' is technically inaccurate because protection schemes consume reserved bandwidth and add overhead, which constitutes a real capacity and cost penalty.
- C. Protection capabilities in DWDM are optional features implemented through specific line cards and configurations rather than a universally inherent property that distinguishes DWDM from all traditional optical technologies.
- D. Service protection through direct integration with an external system is not a standard inherent advantage of the DWDM technology itself and depends on optional, externally coupled systems outside the DWDM platform.
Concept tested. DWDM advantages over traditional optical networking
Community Discussion
No community discussion yet for this question.