单项选择题
A.Amount of data in the backup
B.Bandwidth available to the tape device
C.Length of the backup/restore window
D.Speed that the backup system can find files for restoration
单项选择题 A customer wants to hold all enterprise data on their DS4000 system. Several servers were added after they purchased another company. The servers that have to be run are： （1）An Oracle database running on a HP-UX server （2）Several virtual machines running on VMWare ESX server （3）A Microsoft cluster running Exchange 2000 server Which of these new servers can be integrated with the DS4000？（）
单项选择题 Acustomerisbuildingadatabaseserver，andtheserverdoessequentialwritemostofthetime.TheyareplanningtouseanIBMx445andaServeRAID-6Madapter.WhichofthefollowingfaulttolerantRAIDlevelswillperformbestforsequentialwrite？（）
单项选择题 The statistics for a poorly performing， dual-processor x365 system are as follows： （1）Processor： 80% for 5-second increments （2）Memory page faults： 360/second average over 15 minutes （3）Disk % disk time： 100% Which of the following will provide the greatest performance improvement？（）