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We have a simplified log at the time of a system crash. Assume that there is nolog record before the checkpoint. The format of a log record is (LSN, OperationDetails).(00, begin checkpoint)(05, end checkpoint)(10, T1 write page1)(20, T2 write page2)(30, T1 write page5)(40, T2 commit)(45, T2 end)(50, T3 write page5)(60, T1 abort)(70, CLR undo T1 LSN 30)(80, CLR undo T1 LSN 10)(90, T1 end)CRASHThe system recovery consists of three phases: analysis, redo and undo. Pleaseanswer each of the following

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