单项选择题
A. Tape library
B. NAS
C. Optical jukebox
D. SAN
单项选择题 AserverhassixdrivesofequalsizeattachedtoaRAIDcontroller.Whichofthefollowingfaulttolerant RAIDlevelswouldallowthemaximumamountofdatatobestored？（）
单项选择题 Astaffmemberreportsthattheycannotaccessthesharedfolderonthenetwork；however，other staffmembersarereportingthattheycanaccessthesharedfolder.Whichofthefollowingisthe BESTwaytoidentifytheproblem？（）
单项选择题 Which of the following BEST describes a DAS?（）