電信網(wǎng)絡專業(yè)技術章節(jié)練習(2019.08.11)

A.quit
B.byebye
C.logout
D.end

A.log file parallel write
B.latch：cache buffers chains
C.db file sequential read
D.db file scattered read

A.后付費
B.預付費
C.準預付費
D.準后付費

。A.在線式UPS的輸出穩(wěn)定度比另外兩種差
B.在線互動式UPS掉電切電池無間斷時間
C.后備式UPS只能處理斷電問題
D.在線互動式UPS凈化功能較好