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Database Systems - Section 7 :: Discussion
| 19. | The activity of a file | |
| A. | is a low percentages of number of records added or deleted from a file | |
| B. | if high, reduces processing efficiency for sequential and nonsequential files | |
| C. | is a measure of the percentage of existing records updated during a run | |
| D. | refers to how closely the files fits into the allocated | |
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