Recovering a Database Via Rollback Involves ________

question 87

Multiple Choice

Recovering a database via rollback involves ________.

• A)restoring the database from the save and reprocessing all the transactions since the save
• B)restoring the database from the save and reapplying all the changes made by transactions since the save
• C)undoing the changes made by erroneous or partially processed transactions and restarting the valid transactions that were in process at the time of the failure
• D)re-creating the database by re-entering all of the data from the beginning and,then reprocessing all of the transactions

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