单项选择题
A company backs up their data using daily， weekly， and monthly tape backups. The weekly backups are also known as which of the following？（）
A.Son
B.Father
C.Grandfather
D.Great-grandfather
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WhichofthefollowingBESTdescribeshowservervirtualizationcancutdownITcosts？（）
A. Server virtualization increases server application performance allowing productivity to be increased.
B. Server virtualization simplifies server administration and reduces the IT department staffing needs.
C. Server virtualization implements higher security measures at the server OS level reducing the need for other security implementations.
D. Server virtualization is a more efficient use of hardware for multiple servers reducing the resource utilization. -
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AtechnicianwithaWindowsserverwouldliketouseWindowsSoftwareUpdateServices（WSUS）todeploypatches.WhichofthefollowingMUSTthetechnicianassigntotheservertoinstall WSUS？（）
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Auserisreceivinganerroraboutnothavingenoughvirtualmemory.Atechnicianwantsto manuallysettheamountofavailablevirtualmemoryforthecomputer.AtaMINIMUM，the technicianshouldsetthevirtualmemorytobewhichofthefollowing？（）
A.0.5 times the amount of physical memory
B.1.5 times the amount of physical memory
C.2 times the amount of physical memory
D.Equal to the amount of physical memory
