单项选择题
Which of the following devices would be installed if an administrator wants to control a group of servers from a remote location？（）
A. VLAN
B. KVM
C. IP KVM
D. RAID
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A. Incremental and snapshot
B. Full and differential
C. Full and incremental
D. Differential and incremental -
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WhichofthefollowingistheMOSTlikelyconnectiontypeforabackupexternalmodem？（）
A. IEEE 1394
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Anadministratorwantstolimithowmuchdataeachuserisstoring.WhichofthefollowingwillBEST addressthisissue？（）
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B. SNMP
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D. ACL
