A.tracert B.pathping C.traceroute D.ping <IP address>
A.數(shù)據(jù)包已經(jīng)丟失 B.遇到網(wǎng)絡(luò)擁塞現(xiàn)象 C.目的地不能到達(dá) D.成功地接收到一個回送應(yīng)答
A.switchport mode tag B.switchport mode trunk C.trunk on D.set port trunk on