单选题The statistics for a poorly performing x366 system are as follows:      (1)Processor: 90% for 5 second increments   (2)Memory page faults: 20/second average over 15 minutes      (3)Disk: disk time 1%  Which of the following will provide the greatest pe

题目
单选题
The statistics for a poorly performing x366 system are as follows:      (1)Processor: 90% for 5 second increments   (2)Memory page faults: 20/second average over 15 minutes      (3)Disk: disk time 1%  Which of the following will provide the greatest performance improvement?()
A

Add memory

B

Add a processor

C

Add a faster disk subsystem

D

Exchange the processor with a faster processor

参考答案和解析
正确答案: A
解析: 暂无解析
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相似问题和答案

第1题:

In a three-disk volume group, a disk was physically removed from the system without performing any software procedures to properly remove the disk. Which of the following commands should be performed to recover from this error?()

A.extendvg

B.cfgmgr

C.reducevg

D.varyoffvg


参考答案:C

第2题:

Thestatisticsforapoorlyperforming,dual-processorx365systemareasfollows:(1)Processor:80%for5-secondincrements(2)Memorypagefaults:360/secondaverageover15minutes(3)Disk%disktime:100%Whichofthefollowingwillprovidethegreatestperformanceimprovement?()

A.Addmemory

B.Addaprocessor

C.Exchangetheexistingprocessorforafasterprocessor

D.Addafasterdisksubsystem


参考答案:A

第3题:

Your network contains a database server that runs Windows Server 2003 Standard Edition Service Pack 2(SP2). The server has 1 GB of RAM and a single hard disk.Queries against the databases on the server are very slow. You discover that the hard disk on the server is very active.You are evaluating whether to add RAM to the server.You need to use System Monitor to find out whether adding RAM will decrease disk activity.Which performance counter should you monitor? ()

A. LogicalDisk : % Free Space

B. Memory : Pages Faults/sec

C. Memory : Free System Page Table Entries

D. Server Work Queues : Queue Length


参考答案:B

第4题:

In a three-disk volume group, a disk was physically removed from the system without performing any software procedures to properly remove the disk. Which of the following commands should be performed to recover from this error?()

  • A、extendvg
  • B、cfgmgr
  • C、reducevg
  • D、varyoffvg

正确答案:C

第5题:

After installing a new hard drive into a server for the purpose of mirroring the data from the first drive to the second one, the server displays an “operating system not found” error. Which of the following should the technician do to boot the server from the original drive?()

  • A、Replace the second drive with a hot swappable one.
  • B、Swap the drive boot order in the BIOS
  • C、Make the second disk active under the disk management tool.
  • D、Rebuild the array using the hardware RAID tool at boot.

正确答案:B

第6题:

Rootvg has just been mirrored to a second disk. Which of the following actions should be performed to boot the system off of either disk?()

A.Extendvg to include both disks in the rootvg

B.Copy the hd5 logical volume to hdisk1

C.Run the bosboot and bootlist commands

D.Reset the dump device to /dev/sysdumpnull


参考答案:C

第7题:

Thestatisticsforapoorlyperformingx366systemareasfollows:(1)Processor:90%for5secondincrements(2)Memorypagefaults:20/secondaverageover15minutes(3)Disk:disktime1%Whichofthefollowingwillprovidethegreatestperformanceimprovement?()

A.Addmemory

B.Addaprocessor

C.Addafasterdisksubsystem

D.Exchangetheprocessorwithafasterprocessor


参考答案:D

第8题:

Your network contains a database server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2).Server1 has the following hardware configurations:·A single processor that supports hyper-threading·Dual processor motherboard·Two hard disks·2 GB of RAMThe first disk contains all the files for the operating system and applications. The second disk is empty.Hyper-threading is disabled in the BIOS.Users report a slow response when they query the database on Server1.You monitor Server1 for one day and receive the performance statistics shown in the following table.You need to improve database performance.What should you do? ()

A. Upgrade the RAM to 4 gb.

B. Install a second processor.

C. Enable hyper-threading in the bios.

D. Move the database to the second disk.


参考答案:D

第9题:

Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem?()

  • A、 istat
  • B、 topas
  • C、 vmstat
  • D、 filemon

正确答案:B

第10题:

If a system administrator wants to show only a disk report for disk2, at two second intervals, what is the correct command to run?()

  • A、 iostat disk1 1 
  • B、 iostat -d disk1 2 
  • C、 iostat disk2 1 
  • D、 iostat -d disk2 2

正确答案:D

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