uestion $2(14$ marks$)$ Consider the log in Question $1.(1)$ How the durability of the committed T$1$ and the atomicity of the uncommitted T$2$ are enforced after the crash? $(2)$ What are the TT and DPT saved by Checkpoint? $(3)$ What are the TT and DPT just before crash? $(4)$ What are the TT and DPT reconstructed by Analysis Phase? Explain any differences between $(3)$ and $(4),$ if any. $(5)$ Where does the redo phase start? $(6)$ What transactions will be undone? $(7)$ Which portion of the log will be scanned by Analysis phase? How does the recovery manager know this?