A.when they receive a special token
B.when there is a carrier
C.when they detect no other devices are sending
D.when the medium is idle
E.when the server grants access
A.思科一步鎖閉
B.安全審計(jì)向?qū)?br />
C.思科自動(dòng)安全
D.一鍵關(guān)閉
A.NIC
B.BIA
C.OUI
D.VAI