单项选择题
There is a power outage and all servers are shut down properly by the uninterruptible power supply（UPS） software. When one of the servers starts up it displays a logical drive failed error. This server has two processors，16GB of memory， and a RAID 5 array with 10 drives. Which of the following is the MOST likely cause？（）
A. A failed RAID controller B. Two failed processors C. Two failed sticks of memory D. Two failed drives
多项选择题 Whichofthefollowingwillallowaservertocontinuetofunctionifastickofmemoryfails？（）
单项选择题 WhichofthefollowingistheFIRSTthingtoconsiderwhendesigninganemailretentionpolicy？（）
单项选择题 WhichofthefollowingreplicationmethodsisMOSTfaulttolerant？（）
