A.所有端口都將在丟棄，學(xué)習(xí)，或轉(zhuǎn)發(fā)的狀態(tài)
B.Thiry VLAN是否該交換機(jī)上的配置
C.網(wǎng)橋優(yōu)先級(jí)比生成樹(shù)的默認(rèn)值
D.所顯示的所有接口都在共享媒體
E.所有指定端口都處于轉(zhuǎn)發(fā)狀態(tài)
F.開(kāi)關(guān)必須是該交換機(jī)上的所有VLAN的根橋

A. SW1#show swithport port-security interface FastEthernet 0/12
B. SW1# show swithport port-secure interface FastEthernet 0/12
C. SW1# show port-secure interface FastEthernet 0/12
D. SW1#show running-config
E. SW1#show port-security interface FastEthernet 0/12

A.手動(dòng)關(guān)閉的接口。
B.物理安全的接口。
C.配置虛擬終端的密碼和登錄過(guò)程。
D.輸入一個(gè)訪問(wèn)列表，并將其應(yīng)用到使用access-class命令終端接口。
E.創(chuàng)建一個(gè)訪問(wèn)列表，并將其應(yīng)用到使用access-group命令終端接口。

A.R1 will send LSAs to R2 and R3 informing them of this change， and then all routers will send periodic updates at an increased rate until the network again converges.
B.Because of the split-horizon rule， router R2 will be prevented from sending erroneous information to R1 about connectivity to the 192.168.1.0 network.
C.When router R2 learns from R1 that the link to the 192.168.1.0 network has been lost， R2 will respond by sending a route back to R1 with an infinite metric to the network.
D.Routers R2 and R3 mark the route as inaccessible and will not accept any further routing updates from R1 until their hold-down timers expire.
E.All routers will reference their topology database to determine if any backup routes to the 192.168.1.0 network are known.

A. access-list 10 permit ip 192.168.147.0 0.0.0.255.255
B. access-list 10 permit ip 192.168.149.0 0.0.0.255.255
C. access-list 10 permit ip 192.168.146.0 0.0.0.0.255
D. access-list 10 permit ip 192.168.146.0 0.0.0.1.255
E. access-list 10 permit ip 192.168.148.0 0.0.0.1.255
F. access-list 10 permit ip 192.168.146.0 255.255.255.0