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单项选择题You are the Cisco Network Designer in Cisco.com. Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual ringtopology?()

A、 Dynamic Trunking Protocol

B、 Resilient Packet Ring

C、 Synchronous Digital Hierarchy

D、 Coarse Wave Division Multiplexing

  • B
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