单项选择题

An Ultra 160 or Ultra 320 device falls under which SCSI standard？（）

A.SCSI-1
B.SCSI-3
C.SCSI-2
D.SCSI-4

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单项选择题

WhichtypeofserverisresponsibleforresolvingNetBIOSnames？（）

A. mail server
B. DNS server
C. web server
D. WINS server
E. DHCP server

单项选择题

Alargecorporationisconcernedabouttheamountoftimeittakestobackuptheirmainfileserver.TheyarealsoconcernedthattheirITtechnicianfrequentlyforgetstochangethebackuptapes，therebyleavingthecompanyopentodataloss.Whichbackupsystemwouldsolvebothproblems？（）

A. RAID
B. tape library
C. optical storage
D. disk to disk to tape

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