38 - An entity is the set of facts in a record.
True
False
39 - When different kinds of data (data about different entities) are merged in one file, which of the following anomalies can occur?
deletion but not insertion or update
insertion but not deletion or update
insertion and deletion but not update
insertion and update but not deletion
deletion, insertion, and update
40 - Rebuilding a database after it is destroyed by a natural disaster is an aspect of _____.
computer security
backup and recovery
concurrency control
integration control
access control
38. False. As an entity refers to an object or thing with an independent existence in the real world that can be distinguished from other objects.
39. Deletion, insertion, and update are the anomalies which can happen when different kinds of data (data about different entities) are merged in one file.
40. Backup and recovery whose rebuilding a database after it is destroyed by a natural disaster are an aspect of. Whereas the remaining terms are used in the other context.
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