单选题New service from the telephone company is delivered over fiber, but the technician does not have a fiber module for the router. Which of the following would remedy this issue?（）AOTDRBMedia converterCCSU/DSUDFiber repeater
单选题
New service from the telephone company is delivered over fiber, but the technician does not have a fiber module for the router. Which of the following would remedy this issue?（）
A
OTDR
B
Media converter
C
CSU/DSU
D
Fiber repeater
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