单选题What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?（）Apath costBlowest port MAC addressCVTP revision numberDhighest port priority numberEport priority number and MAC address
单选题
What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?（）
A
path cost
B
lowest port MAC address
C
VTP revision number
D
highest port priority number
E
port priority number and MAC address
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