which combination of port types can exist on the root bridge?

In an RSTP network, which combination of port types can exist on the root bridge?

In an RSTP network, which combination of port types can exist on the root bridge?

A.
There can be some combination of designated ports and backup ports

B.
There can be some combination of root ports and alternate ports

C.
All ports will be designated ports

D.
All ports will be root ports

Explanation:

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uno76

uno76

Well, what if root bridge has several links to the same segment? Then 1 link is designated and others are backup links. So, answer is A.

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