A.實(shí)時(shí)數(shù)據(jù)、歷史數(shù)據(jù)、故障數(shù)據(jù) B.測量數(shù)據(jù)、開關(guān)數(shù)據(jù)、故障數(shù)據(jù) C.實(shí)時(shí)數(shù)據(jù)、歷史數(shù)據(jù)、計(jì)劃數(shù)據(jù) D.測量數(shù)據(jù)、歷史數(shù)據(jù)、故障數(shù)據(jù)
A.降低傳送信息量 B.保證數(shù)據(jù)傳輸?shù)目煽啃?br /> C.改正數(shù)據(jù)傳輸?shù)腻e(cuò)誤 D.保證數(shù)據(jù)傳遞有序
A.網(wǎng)絡(luò)安全 B.計(jì)算機(jī)安全 C.網(wǎng)絡(luò)故障 D.安全防護(hù)