A. 10
B. 32
C. 64
D. 84
E. 96
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A. line timing
B. loop timing
C. internal timing
D. through timing
E. external timing
最新試題
What are two major differences between MS-SPRing and SNCP？（）
Click the Exhibit button. When designing a DWDM system with multiple amplified spans， a pre-amp is needed at Site B to （）.
Which two can be transported in one AU-4？ （）
Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems？（）
The ONS 15216 is a 32-channel system. The ONS 15216 OADMs are capable of adding and dropping one， two， or four channels. How are the OADMs provisioned to add and drop specific channels？（）
What protection method is used in 4F MS-SPRing networks？（）
What is the phenomenon called where different wavelengths of light travel at different speeds？（）
Given the formula： （Fiber Attenuation * Km） + （Splice Attenuation * # of Splices） + （Connector Attenuation * # of Connectors） + （Optical Fiber or OADM） + Buffer（Fiber aging）） With regard to SONET/SDH optical calculations， what will the given formula provide？（）
The dispersion of a non-zero dispersion shifted fiber is 6 ps/nm*km at 1550 nm and 10 ps/nm*km at 1610 nm. What is the minimum dispersion compensation required if an L-Band DWDM signal travels through 200 km of fiber and has a dispersion tolerance of 1800 ps/nm？（）
What are three relevant design considerations when using the 15216 EDFA？（）