Database Systems - Section 6 Multiple Questions and Answers.
Exercise Questions ::
Database Systems
Published by:Michael Daani
17. | An audit trail |
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| A. | is used to make back-up copies |
| B. | is the recorded history of operations performed on a file |
| C. | can be used to restore lost information |
| D. | All of the above |
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Published by:Michael Daani
18. | A race condition occurs when |
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| A. | Two concurrent activities interact to cause a processing error |
| B. | two users of the DBMS are interacting with different files at the same time |
| C. | both (a) and (b) |
| D. | All of the above |
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Published by:Michael Daani
Published by:Michael Daani
Published by:Michael Daani
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