单项选择题
A technician has to populate a server motherboard with memory. The board has a memory bus speed of 800 MHz. Which of the following memory types should be used？（）
A.DDR3 B.SDRAM C.DDR D.DDR2
单项选择题 WhichofthefollowingMicrosofttechnologiesallowsforfilereplicationbetweenservers？（）
单项选择题 Whichofthefollowingaccuratelydescribesthemeaningofredundantcooling？（）
单项选择题 Usesareunabletoprinttoanyofthenetworkprinters.Whichofthefollowingshouldthe administratorperformFIRST？（）
