单项选择题 An administrator is installing Windows Server 2003 via CD on a new server with an SAS RAID array. When the administrator reaches the option to select the target installation drive, there are no drives listed. Which of the following is the FIRST thing the administrator should do?（）

单项选择题 A company has had problems with their HVAC system being able to cool their datacenter as they have grown.  Which of the following could BEST be used to help reduce the load on the HVAC system？（）

多项选择题 Which of the following is designed to guarantee that once data is written it cannot be modified?（）