A.數(shù)據(jù),數(shù)據(jù)段,數(shù)據(jù)包,數(shù)據(jù)幀,比特
B.比特,數(shù)據(jù)幀,數(shù)據(jù)包,數(shù)據(jù)段,數(shù)據(jù)
C.數(shù)據(jù)包,數(shù)據(jù)段,數(shù)據(jù),比特,數(shù)據(jù)幀
D.數(shù)據(jù)段,數(shù)據(jù)包,數(shù)據(jù)幀,比特,數(shù)據(jù)
A.報文交換
B.分組交換
C.幀中繼交換和信元交換
D.以上全部