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29 April, 13:41

The write-ahead logging (WAL) protocol simply means that Select one: a. the log record for an operation should be written before the actual data is written b. writing of a data item should be done ahead of any logging operation c. all log records should be written before a new transaction begins execution d. the log never needs to be written to disk

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  1. 29 April, 14:53
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    The correct answer to the following question will be Option a.

    Explanation:

    The WAL method ensures that neither updates to something like a database site can be discarded onto the disc before the relevant payment log documents are first published to either the disc with this kind of update. The above procedure essentially means you need to write the logging records for an event before another individual data is entered or presented.

    Some other available scenarios have no connection with the given situation. So the proper answer seems to be the choice a.
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