Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual （counter-rotating） ring topology？（）
- A、 DTP
- B、 RPR
- C、 SDH
- D、 CWDM
- E、 DWDM
微信扫一扫手机做题
多做题，通过考试没问题！
思科认证考试
思科认证考试
Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual （counter-rotating） ring topology？（）
微信扫一扫手机做题