试题详情
- 单项选择题Which mechanism can you use to achieve sub-second failover for link failure detection when a switched Ethernet media is used and loss of signal is not supported by the link provider？（）
A、OSPF standard hellos
B、Cisco Discovery Protocol link detection
C、Bidirectional Forwarding Detection
D、Fast Link Pulse
E、autonegotiation
- C
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