Whichofthefollowingerrorsarecausedbyleavingafloppydiskinthedrivewhenacomputerispoweredon?()
A. Randombluescreenerror
B. Inaccessiblebootdrive
C. MissingNTLDR
D. Invalidbootdisk
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希望他人向自己发出要约的意思表示是()
A. 要约邀请
B. 要约
C. 承诺
D. 意思表示
当一组数据的分布为偏态时,尤其是偏斜程度较大时,最好用()作为该组数据的概括性度量。
A. 众数
B. 中位数
C. 均值
D. 极差
E. 平均差
Whichtwostatementsaretrueaboutopticalnetworks?()
A. SONETandSDHbothusetime-divisionmultiplexing.
B. Anopticaltransportnetworksystemusestime-divisionmultiplexing.
C. SONETandSDHbothusewavelength-divisionmultiplexing.
D. Anopticaltransportnetworksystemuseswavelength-divisionmultiplexing.
Whatistheprimarypurposefortheclassificationoftrafficinarouter?()
A. tousetheclassificationtoroutetraffic
B. tousetheclassificationtoreorderpacketsfromvarioussources
C. tousetheclassificationtodiscardmalformedpackets
D. tousetheclassificationtoprovidetheconfiguredservicelevel