单项选择题
What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology？（）
A.lowest port MAC address
B.port priority number and MAC address
C.VTP revision number
D.highest port priority number
E.path cost
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相关考题
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单项选择题
In which solution is a router ACL used？（）
A.protecting a server frome unauthorized acces
B.controlling path selection，based on the route metric
C.reducing router CPU utilization
D.filterring packets that are passing through a router -
单项选择题
Assuming default setting，how can you erase the VTP data base of VLANs on a CISCO IOS switch running in VTP server mode？（）
A.Enable VTP pruning
B.From privileged mode，erase the startup configuration file，then reload.
C.From privileged mode，erase the vlandate file，then reload.
D.Cycle the switch power. -
单项选择题
一个默认的帧中继WAN被分类为哪种物理网络类型？（）
A.点到点
B.广播多路访问
C.非广播多路访问
D.非广播多点
E.广播点到多点
