A.blocking B.learning C.disabled D.forwarding E.listening
A.Establish a direct link from the switch to all other switches in the network. B.Assign the switch a higher MAC address than the other switches in the network have. C.Configure the switch so that it has a lower priority than other switches in the network. D.Configure the switch for full-duplex operation and configure the other switches for half-duplex operation. E.Connect the switch directly to the MDF router, which will force the switch to assume the role of root bridge.
Host1的用戶想PING DSL調(diào)制解調(diào)器/路由器的192.168.1.254,ARP表如下圖,Host1會(huì)怎么操作?()
A.發(fā)送一個(gè)單播ARP包到DSL調(diào)制解調(diào)器/路由器 B.發(fā)送一個(gè)單播ICMP包到DSL調(diào)制解調(diào)器/路由器 C.發(fā)送三層廣播包到響應(yīng)的DSL調(diào)制解調(diào)器/路由器 D.發(fā)送一個(gè)可以被Host2,the switch,and the DSL modem/router 受到的2層廣播幀