642-321 Cisco Optical SDH Exam (SDH)
Note 1: 642-321 Exhibit and all related diagrams are not shown in demo questions.
Note 2: 642-321 Answers are not shown in demo questions.
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Note 2: 642-321 Answers are not shown in demo questions.
Exhibits and Answers are only provided in the Full Version.
Demo Question 9.
Which device creates an OEO conversion?
A. Amplifier
B. Attenuator
C. Regenerator
D. Light emitter
E. Optical switch
F. Optical receiver
G. Fiber-optic cable
Display Answer
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