单项选择题
A.It drops the connection after the specified number of login attempts fail for any user.
B.It is enforced only if the password profile is enabled for the user.
C.It locks the user account after the specified number of attempts.
D.It drops the connection after the specified number of login attempts fail only for users who have the SYSDBA privilege.
单项选择题 Becauseofapoweroutage，instancefailurehasoccurred.Fromwhatpointintheredologdoesrecoverybeginandwheredoesitend？（）
单项选择题 The /export/home file system is running out of space on c0t0d0s7. You added a new disk to the system and it is named c1t1d0. You need to move the /export/home file system to slice 7 on the new disk. Which command is used to move the data from /export/home to the new disk after booting the server to the single-user milestone？ （）
单项选择题 YouhavecreatedanOracle10gdatabasenamedSALES，whichwillbeusedbyanapplicationnamedSalesOrders.UsersoftheSalesOrdersapplicationcomplainthatapplicationresponsetimeisslowwhentheygeneratereports.TheSalesOrdersapplicationaccessesatablethatcontains10millionrows.YoudecidetocreateanindexonthistableusingtheNOLOGGINGoptionsothattheindexcreationprocessiscompletedintheleastamountoftime.WhichofthefollowingisNOTtrueaboutanindexcreatedwiththeNOLOGGINGoption？（）