单项选择题
根据下图，图中的拓扑中存在多少个广播域？（）
A.1 B.2 C.3 D.4 E.5 F.6
What value is primarily used to determine which port be...
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
In which solution is a router ACL used？（）A.protecting a...
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
Assuming default setting，how can you erase the VTP data...
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.
