试题详情
- 单项选择题 Click the Exhibit button. A customer has several interconnected core rings (see exhibit). They want to create several irtual rings?utilizing their OC-192 backbone (nodes 1,2,3,4). What should you recommend?（）
A、PPMN with BLSR rings
B、PPMN with UPSR rings
C、1:N protection on all core circuits
D、multi-ring interconnect with BLSR rings
- B
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