A.FastEthernet B.幀中繼和X.25 C.幀中繼和ATM D.ISDN和ATM
A.物理層、數(shù)據(jù)鏈路層和分組層 B.物理層、互連層和傳輸層 C.網(wǎng)絡層、傳輸層和應用層 D.數(shù)據(jù)鏈路層、網(wǎng)絡層和傳輸層
A.NetWare B.Unix C.WindowsNT D.LANserver