4A0-105: Nokia Virtual Private LAN ServicesDemo

Question

Refer to the exhibit below.

Question Image

Which port becomes the alternate port?

A Bridge B 1/1/3
B Bridge B 1/1/2
C Bridge C 1/1/2
D Bridge C 2/1/1
E Bridge D 1/1/1
F Bridge D 1/1/3

Explanation

Bridge E is the root bridge because it has the lowest bridge ID. Bridge C has a root-path cost of 10, while Bridge B has a root-path cost of 20 through Bridge D. On the link between B and C, C therefore supplies the superior BPDU and is the designated bridge; Bridge B’s port on that link is the alternate port.

4A0-105: Nokia Virtual Private LAN ServicesDemo

AstroTutor

Notes

Readiness

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