QUESTION 18 The TCL commands are used by the business end users of a database system O True O False QUESTION 19 What is a checkpoint none of these answens OA checkpoint is a part of a recovery log When a checkpoint is createdall uaorded in the recovery log-and as a resuit any updates to data stored in memory-are witten to the database in the data file on the disk O a part of.rec-yleg.wewn a checkpont is ereated, ne updates recorded inthe recovery log-and as a reut any updates to dea stored n memory-r, Acheckpoint database in the data fle on the disk men tote Aniwer: Acheape esa t of recovery log w en?c eckport soe ted a" updates ecer edinme ecovery i t an as ne any updates to data nce tredinnener to the database in the data fie on the disk tem QUESTION 20 At a basic level analytics nefers to analysis and interpretation of ata colecting data conducting a needs analy