MCQOPTIONS
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				| 1. | 
                                    In the                        scheme, a transaction that wants to update the database ï¬rst creates a complete copy of the database. | 
                            
| A. | shadow copy | 
| B. | shadow paging | 
| C. | update log records | 
| D. | all of the mentioned | 
| Answer» B. shadow paging | |