单项选择题
A. GFS
B. Full
C. Differential
D. Incremental
单项选择题 WhichofthefollowingRAIDlevelswouldprovidefaulttolerancewhilealsoprovidinghigh performanceatareducedcost？（）
单项选择题 Which of the following internal storage technologies has the HIGHEST single drive storage capacity?（）
多项选择题 Whichofthefollowingisdesignedtoguaranteethatoncedataiswrittenitcannotbemodified？（）