Recovering a database via rollforward 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

Question

Quizplus · Accepted Answer

Rollforward recovery involves restoring the database to its state at the time of the save and then reapplying all the changes made by transactions since the save. This is also known as forward recovery. The other options listed in the question involve different forms of recovery, such as restoring the database and reprocessing all transactions (A, D) or undoing erroneous transactions and restarting valid ones (C).

Recovering a Database Via Rollforward Involves ________