FEC与CFEC区别是（）.A、以反码发射B、选呼方式C、选呼方式并以反码发射D、双向互通
FEC与CFEC区别是（）.
- A、以反码发射
- B、选呼方式
- C、选呼方式并以反码发射
- D、双向互通
相关考题：
关于FEC的说法，正确的有（）。A、支持FEC和不支持FEC功能的设备不能直接互通B、FEC可分为带外FEC和带内FECC、AFEC与FEC也不能互通D、AFEC比FEC更加降低系统对OSNR的要求
What is the role of Forwarding Equivalence Class （FEC） in MPLS？（）A、FEC determines how IP packets are forwarded in MPLS LSP.B、FEC determines how to establish an LSP path.C、FEC determines how a group of IP packets are mapped to an LSP.D、FEC determines how MPLS labels are stacked in LSP.E、None of above.
Which three are valid IPv6 interface addresses?（）A、FEC0：0：9000：0：9376：0：ABCD://EF12/128B、FEC0：0：0：2000：10FF://9472：94FA：3490/128C、FEC0：0：9500：0：59AB：BC12：94583：99CF/128D、FEC0：FEC0：0：FEC0：1234：4321：7890：978/128E、FEC0：0：9500：0：59AB：EEC12：ABCD://99CF/128
Which two statements about forwarding equivalence class （FEC） are true？（）A、FEC might correspond to a destination IP subnet， but it might also correspond to any traffic class that the edge LSR considers significant.B、FEC is a group of IP packets that is forwarded over a different path， but with the same forwarding treatment.C、FEC is a group of IP packets that is forwarded over the same path， and with the same forwarding treatment.D、FEC is a group of IP packets that is forwarded over a different path， but with the different forwarding treatment.E、FEC is a group of IP packets that is forwarded over the same path， but with a different forwarding treatment
某LSR运行在DU的标签分配模式、有序的标签控制模式下，下列说法正确的是（）。A、该LSR收到了上游LSR针对某FEC的标签分配请求，且该LSR是该FEC的最下游设备时才可以为该FEC分配标签B、该LSR收到了下游设备针对某FEC的label mapping消息时就可以为该FEC分配标签，无需等待上游的标签分配请求C、该LSR是某FEC的最下游设备就可以为该FEC分配标签，无需等待上游的标签分配请求D、该LSR只要收到上游设备针对某FEC的标签分配请求就可以为该FEC分配标签
多选题Which two statements about forwarding equivalence class （FEC） are true？（）AFEC might correspond to a destination IP subnet， but it might also correspond to any traffic class that the edge LSR considers significant.BFEC is a group of IP packets that is forwarded over a different path， but with the same forwarding treatment.CFEC is a group of IP packets that is forwarded over the same path， and with the same forwarding treatment.DFEC is a group of IP packets that is forwarded over a different path， but with the different forwarding treatment.EFEC is a group of IP packets that is forwarded over the same path， but with a different forwarding treatment
单选题What is the role of Forwarding Equivalence Class （FEC） in MPLS？（）AFEC determines how IP packets are forwarded in MPLS LSP.BFEC determines how to establish an LSP path.CFEC determines how a group of IP packets are mapped to an LSP.DFEC determines how MPLS labels are stacked in LSP.ENone of above.
多选题Which three are valid IPv6 interface addresses?（）AFEC0：0：9000：0：9376：0：ABCD://EF12/128BFEC0：0：0：2000：10FF://9472：94FA：3490/128CFEC0：0：9500：0：59AB：BC12：94583：99CF/128DFEC0：FEC0：0：FEC0：1234：4321：7890：978/128EFEC0：0：9500：0：59AB：EEC12：ABCD://99CF/128
单选题在MPLS中，FEC的角色是什么？（）AFEC决定IP数据包在LSP中如何转发BFEC决定如何建立LSP路径CFEC决定LSP如何与组对应DFEC决定标签如何存储