Which spanning-tree protocols will meet this need?

Posted by: Pdfprep Category: DES-5221 Tags: , ,

A network administrator is designing a Layer 2 topology and requires separate spanning-tree roots to avoid having a given port blocked for all instances.

Which spanning-tree protocols will meet this need?
A . STP & RSTP
B . RSTP-PV & MSTP
C . STP & RSTP-PV
D . RSTP & MSTP

Answer: B

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