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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

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1.单项选择题Which of the following is the benefit of installing two expandability cables to an RXE-100 from an x445？（）

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

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2.单项选择题An x445 with two 3.0GHz DP processors and 2GB of RAM is running a processor-intensive floating-point geological application that calculates pressures in the earth’s crust. It takes a long time for each calculation， and the director of computing wants the calculations to take less time. Memory addressed by the application may also be a bottle neck. Which of the following will most improve the ability to run the calculations in less time？（）

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

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3.单项选择题A customer’s server is experiencing slow application response due to lack of processor power. In which one of the following systems would the addition of the Expand On Demand processor upgrade feature benefit future expansion？（）

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

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4.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

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5.单项选择题Which of the following is a function of the XceL4 Cache？（）

A.It places frequently accessed data close to the processor to help deliver faster performance.
B.It replaces L3 cache memory.
C.It speeds up processor performance by purging the current set of instructions and freeing them up to work on the next set of instructions.
D.It allows the system to address more than 16GB of memory.

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6.单项选择题Which of the following statements applies to the x445 memory subsystem？（）

A.With XA-32 architecture， addressing more than 64GB of RAM can be installed.
B.The amount of memory should be balanced across ports for best performance.
C.All DIMM slots should be populated in numerical order - slot 1 before slot 2， slot 2 before slot 3， etc.
D.All even number DIMM slots should be populated before odd number DIMM slots.

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7.单项选择题Due to the pricing of MP processors， a customer is evaluating DP processors. They have current budget constraints and do not want to discard obsolete hardware after a scaling step. It is calculated that two processors will meet their immediate needs. Their projected growth indicates they will need more than four processors. Which of the following recommendations will provide the best path for growth at the lowest cost？（）

A.Begin with a dual DP x445 and scale in the same chassis
B.Begin with a dual MP x445 and scale in the same chassis
C.Begin with a dual DP x445 and scale out in an extra chassis
D.Begin with a dual MP x365 and scale to a different machine

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8.单项选择题A customer needs a new database server. The database application has a high memory overhead but does not benefit from 8-way processing. They would like a rack mountable system， which will support four Xeon processors with 512KB of L2 cache and 16GB of main system memory. Which of the following will satisfy the customer’s requirements？（）

A.x445 with four Xeon DP processors and 16GB of memory in a single SMP module
B.x445 with four Xeon MP processors and 16GB of memory in a single SMP module
C.x445 with two SMP modules each containing two Xeon DP processors and 8GB of memory
D.x445 with two SMP modules each containing two Xeon MP processors and 8GB of memory

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9.多项选择题Which TWO of the following are required to use the hot-swap memory feature of the x445 while being operating system independent？（）

A.Memory Mirroring must be enabled in the BIOS.
B.Redundant bit steering must be enabled in the BIOS.
C.DIMMs must be the same size and speed as the DIMMs being replaced.
D.Memory Mirroring must be enabled in the operating system.
E.DIMMs can be of same size or larger or same speed or faster.

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10.单项选择题An x445 can withstand up to two failed memory chips per memory bank. In addition， the customer requires protection for a third memory chip failure on that bank. Which EXA feature will provide this extra level of protection？（）

A.Chipkill
B.Hot Spare Memory
C.Memory Mirroring
D.Memory ProteXion

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