Database Systems Practice Test 179
Entity Relationship Model Quiz Questions with Answers PDF Download - 179
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The Quiz: A set of entities of the same type that share the same properties, or attributes, is known to be; "Entity Relationship Model" App (iOS, Android) with answers: Grouped entities; Entity group; Entity set; Sampled entities; for online degrees. Study Database Design and ER Model Questions and Answers, Apple e-Book to download free sample for online computer engineering programs.
Entity Relationship Model Quiz with Answers PDF Download: MCQs 179
A set of entities of the same type that share the same properties, or attributes, is known to be
- Entity group
- Grouped entities
- Entity set
- Sampled entities
Buffering is done by
- Operating system
- Database system
- Disk controller
- Both A and B
The generalization in which the same entity can belong to more than one lower-level entity set within a single generalization, is known to be
- Disjointness constraint
- Overlapping constraint
- Completeness constraint
- Concurrency constraint
The specified role must have been granted to the user, else the set role statement
- Executed
- Accepts
- Passes
- Fails
A data-loss in a disk block can be in result of
- Head crash
- Sector crash
- Failure in data-transfer
- Both A and C
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Entity Relationship Model Practice Tests
- Not all queries can be expressed in
- In symmetric-key encryption technique, key that is used to decrypt data is known to be
- If both relationship edges have a maximum value of 1, relationship is said to be
- Physical data independence needs to be rewritten if a change occurs in
- Snapshot isolation is a scheme of