单项选择题

Acustomerisbuildingadatabaseserver，andtheserverdoessequ……

A customer is building a database server， and the server does sequential write most of the time. They are planning to use an IBM x445 and a ServeRAID-6M adapter. Which of the following fault tolerant RAID levels will perform best for sequential write？（）

A.RAID-5 with cache write back
B.RAID-1E with cache write back
C.RAID-10 with cache write thru
D.RAID-50 with cache write thru

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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？（）

A.Add memory
B.Add a processor
C.Exchange the existing processor for a faster processor
D.Add a faster disk subsystem

单项选择题WhichofthefollowingisthebenefitofinstallingtwoexpandabilitycablestoanRXE-100fromanx445？（）

A.Higher availability of the enclosure
B.Access to both channels of the RXE-100
C.Support for more PCI-X 133MHz I/O cards
D.Improved management of the Drawer Management Controller in the RXE-100

单项选择题Anx445withtwo3.0GHzDPprocessorsand2GBofRAMisrunningaprocessor-intensivefloating-pointgeologicalapplicationthatcalculatespressuresintheearth’scrust.Ittakesalongtimeforeachcalculation，andthedirectorofcomputingwantsthecalculationstotakelesstime.Memoryaddressedbytheapplicationmayalsobeabottleneck.Whichofthefollowingwillmostimprovetheabilitytorunthecalculationsinlesstime？（）

A.Replace the two 3.0 GHz DP processors with four 3.0GHz MP processors with a 4MB L3 cache and 4GB of RAM
B.Replace the x445 with an x366 with four 3.66 EM64T processors with a 1MB L2 cache and 4GB of RAM
C.Replace the two 3.0GHz DP processors with two 3.0GHz MP processors with a 4MB L3 cache and 2GB RAM
D.Replace the two 3.0GHz DP processors with four 3.0 GHz DP processors with a 512KB L2 cache and 4GB RAM

单项选择题Acustomer’sserverisexperiencingslowapplicationresponseduetolackofprocessorpower.InwhichoneofthefollowingsystemswouldtheadditionoftheExpandOnDemandprocessorupgradefeaturebenefitfutureexpansion？（）

A.An x255 with 4 processors
B.An x365 with 4 processors
C.An x445 with 4 processors
D.An x445 with 32 processors

单项选择题A FastT Host FC-2 bus adapter， a U320 SCSI adapter， and three 10 100Mb Ethernet adapters have to be installed as optimally as possible. This is going to be a 24X7 system. The addition of extra PCI-cards is a major consideration as well. Based on the following， what is the best configuration？（）（1）Slot 1 66MHz Bus 1 （2）Slot 2 66MHz Bus 1 （3）Slot 3 100MHz Bus 2 （4）Slot 4 100Mhz Bus 2 （5）Slot 5 133Mhz Bus 3 （6）Slot 6 133Mhz Bus 3

A.Put the Ethernet adapters in slots 1， 2 and 3. Put the FastT HBA in slot 5. Put the U320 adapter in slot 6.
B.Put the Ethernet adapters in slots 1， 4 and 6. Put the FastT HBA in slot 5. Put the U320 adapter in slot 3.
C.Put the Ethernet adapters in slots 1， 2 and 4. Put the FastT HBA in slot 3. Put the U320 adapter in slot 5.
D.Put the Ethernet adapters in slots 1， 2 and 3. Put the FastT HBA in slot 5. Put the U320 adapter in slot 4