行政单位政府采购适用于竞争性谈判的情形有（）。 ["招标后没有供应商投标或者没有合格标的或者重新招标未能成立的","技术复杂或者性质特殊，不能确定详细规格或者具体要求的","采用招标所需时间不能满足用户紧急需要的","不能事先计算出价格总额的"]
You are designing a strategy to ensure that DNS queries always take the most efficient route to get resolved. Which action or actions should you perform？（） [" Configure conditional forwarding on the corporate DNS servers to point the development DNS servers."," Configure conditional forwarding on the development DNS servers to point the corporate DNS servers."," Configure conditional forwarding on the perimeter network DNS servers to point the corporate and development DNS servers."," Configure forwarding on the corporate and development DNS servers to point the perimeter network DNS servers."," Disable root hints on the perimeter network DNS Servers."]
产品分析法
请列举出六大交响曲。
You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers，configuring Windows Server 2008 Terminal services and network application services， and configuring aweb services infrastructure. The Web Server （IIS） server role is installed on a server， and Windows Server2008 is run. There is a Web site named www.wiikigo.com/hr in your company's human resources department. Since you are the technical support，you are required to have a virtual directory created on thecompany Web site for the HR department. To achieve the goal，which command should be run on the Webserver？（） ["To achieve the goal， appcmd add site \/name：hr \/physicalPath：c：\\websites\\hr should be run.","To achieve the goal， appcmd add vdir \/app.name：wiikigo \/path：\/hr \/physicalPath：c：\\websites\\hr shouldbe run.","To achieve the goal， appcmd set vdir \/vdir.name：hr \/path：\/hr \/physicalPath：c：\\websites\\hr should be run.","To achieve the goal， appcmd add app \/app.name：wiikigo \/path：\/hr \/physicalPath：c：\\websites\\hr shouldbe run."]
服务器集群的方式有哪些
