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Which protocol prevents fiber failures from causing a Layer 2 loop in a dark fiber DCI?

Posted by: Pdfprep Category: 300-610 Tags: , , Post Date: November 17, 2020

Which protocol prevents fiber failures from causing a Layer 2 loop in a dark fiber DCI?
A . BFD
B . UDLD
C . MCP
D . LLDP

Answer: B

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