单项选择题
A technician is replacing memory in a server whose motherboard supports PC3-8500 memory. This type of memory is also known as which of the following？（）
A.SDRAM B.DDR C.DDR3 D.DDR2
单项选择题 WhichofthefollowingmemorytypeshastheFASTESTspeed？（）
单项选择题 AtechnicianisreplacingmemoryinaserverwhosemotherboardsupportsPC2100memory.Thistypeofmemoryisalsoknownaswhichofthefollowing？（）
单项选择题 Whichofthefollowingmemorytechnologiesallowsforsinglebiterrorstobedetectedand subsequentlyfixed？（）
