An actual update is not allowed to a data item ______

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An actual update is not allowed to a data item ______

1.before the corresponding log record is written out to stable storage

2.after the corresponding log record is written out to stable storage

3.until the whole log record has been checked for inconsistencies

4.All of the Mentioned

Posted Date:-2022-03-25 08:50:39

More MCQS Questions and answers

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  14. All processes share a semaphore variable mutex, initialized to 1. Each process must execute wait(mutex) before entering the critical section and signal(mutex) afterward. Suppose a process executes in the following manner. wait(mutex); ..... critical section ..... wait(mutex);
  15. An actual update is not allowed to a data item ______
  16. An un-interruptible unit is known as ________
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