Select valid reasons for IT performance issues that cannot be universally solved by adding more hardware：（）A、 adding hardware may exacerbate inefficiency， which can lead to over provisioning and lower utilizationB、 performance may degrade due to bottlenecks such as database connections that won’t scale in lock step with other dimensions such as computing capacity or memoryC、 both A and B are validD、 neither A nor B are valid
Select valid reasons for IT performance issues that cannot be universally solved by adding more hardware：（）
- A、 adding hardware may exacerbate inefficiency， which can lead to over provisioning and lower utilization
- B、 performance may degrade due to bottlenecks such as database connections that won’t scale in lock step with other dimensions such as computing capacity or memory
- C、 both A and B are valid
- D、 neither A nor B are valid
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单选题Which of the following is a benefit of NAS over SAN？（）A Higher data integrityB Lower cost of implementationC Higher redundancyD Increased performance
多选题A common approach to solve application performance issues is to add more hardware. Which two reasons describe why this alone does not always solve performance problems?（）AThere may be a bottleneck in the application that additional hardware would not solve.BAdding more hardware is costly and time consuming.CAdding hardware at the application layer may place additional load on an already overloaded database, network appliance, or storage system.DAdding more hardware may introduce new configuration requirements that need to be tested.
单选题Which of the following BEST explains the purpose of an HCL？（）A It lets the administrator know which hardware will work with a particular OS.B It sets the bare minimum hardware requirements for specified software.C It allows the administrator to verify software compatibility amongst various vendors.D It verifies that hardware is fit for certain overclocking performance metrics.
单选题Select valid reasons for IT performance issues that cannot be universally solved by adding more hardware：（）A adding hardware may exacerbate inefficiency， which can lead to over provisioning and lower utilizationB performance may degrade due to bottlenecks such as database connections that won’t scale in lock step with other dimensions such as computing capacity or memoryC both A and B are validD neither A nor B are valid
多选题Identify three reasons that explain why assigning more than one managed serve achieve better performance than running one managed server with more resources?（）AThread management inside the JVM process might be less effective than context switching between processes on the OS level. It is better to combine both these technologies to achieve full saturation of resources.BCurrent CPUs are multicore units. So starting managed servers in the amount of physical cores and pinning them 1:1 to cores will always get the best performance.CBy a combination of prioritization of processes on the OS level and Work Manager in WLS, one could tune the whole environment more precisely.DAssigning more than one managed server to hardware will never bring better performance.EMore instances means more connections to databases, so one could serve more concurrent calls on the database level. This is primarily why this approach will give better performance numbers.FDepending on the profile of the application, having more JVMs with smaller heaps will lead to more predictable response times than fewer JVMs with a large heap.
单选题Which of the following is an advantage of hardware RAID over software RAID？（）AHardware RAID costs less than software RAIDBHardware RAID is built into the operating system’s softwareCHardware RAID has better performance than software RAIDDHardware RAID requires no configuration and software RAID does
单选题You are employed as the exchange administrator at Company.com.the Company.com organization makes use of microsoft exchange server 2010 as their messaging solution.Company.com has its headquarters in stockholm where you are located.you are responsible for an exchange server 2010 mailbox server named - ex01.during the course of the day you receive notification from management to determine which users that have the biggest mailboxes on - ex01.What should you do？（）AThis can be accomplished by adding the MSExchangeIS Mailbox performance counters to the Performance Monitor.BThis can be accomplished by running the Get-MailBoxStatistics cmdlet.CThis can be accomplished by running the Get-StoreUsageStatistics cmdlet.DThis can be accomplished by adding the MSExchangeIS Client performance counters to the Performance Monitor.
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单选题Which of the following BEST describes a virtualized server environment？（）A A physical server environment utilizing only RAM storage with no physical disk medium to enhance performance.B Multiple operating systems sharing the same physical hardware to leverage higher usage.C A distributed computing environment where many lower cost machines are combined to increase processing power and overall performance.D A single operating system using multiple physical hardware chassis to leverage higher availability.