试题详情
- 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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