Recovering a Database Via Rollback Involves

question 61

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.
• E)synchronizing the database and the transaction log by checkpointing.

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Definitions:

Division Of Labor

The distribution of various segments of a production activity or job among different individuals to enhance productivity.

Productivity

The measure of how efficiently goods and services are produced, often evaluated as the ratio of output to inputs in the production process.

Opportunity Cost

The expense incurred by not choosing the second-best option during a decision-making process.

Sweaters

A knitted garment typically made of wool, cotton, or synthetic yarn, worn over the upper body for warmth.