As updates to an online order entry system are processed, the updates are recorded on a
transaction tape and a hard copy transaction log. At the end of the day, the order entry files are
backed up on tape. During the backup procedure, a drive malfunctions and the order entry files are
lost. Which of the following is necessary to restore these files?
The previous day’s backup file and the current transaction tape
The previous day’s transaction file and the current transaction tape
The current transaction tape and the current hard copy transaction log
The current hard copy transaction log and the previous day’s transaction file
The previous day’s backup file will be the most current historical backup of activity in the system.
The current day’s transaction file will contain all of the day’s activity. Therefore, the combination of
these two files will enable full recovery upto the point of interruption.