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GO Classes Test Series 2024 | Mock GATE | Test 11 | Question: 59

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Which of the following statements is/are false?
  1. In a cascade-less schedule if a transaction $T_j$ read a data item written by transaction $T_i$ then the commit of $T_i$ has to be before this read operation of $T_j$
  2. A recoverable schedule is also cascade-less
  3. Not all conflict-serializable schedules are also 2PL
  4. A schedule that is $2 \mathrm{PL}$ (could have been produced using the $2 \mathrm{PL}$ locking protocol) is conflict-serializable.
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Answer explanation please 🙏
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@xd_punk answer of B,C,D are trivial i think you are confused with option A

option A indirectly states that there is no dirty read and we know that

a schedule is cascade-less iff(<->) there is no dirty read

so A) is true
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