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Database Management System Practice Test 20

Relationship Types Sets and Roles MCQ Questions and Answers PDF - 20

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Relationship Types Sets & Roles MCQ with Answers PDF Download: Quiz 20

MCQ 96: The data model in which the relationships are explained in terms of attributes is classified as

A) functional data models
B) binary data models
C) ternary data models
D) extension data model

MCQ 97: The operation which is used to take union of tuples from the relations that are not union compatible is classified as

A) FULL UNION operation
B) JOIN UNION operation
C) OUTER UNION operation
D) INNER UNION operation

MCQ 98: The process of converting the requests into results between three-schema architecture internal, external and conceptual levels is called

A) mapping
B) pitching
C) transforming
D) dependence

MCQ 99: The hashing technique which allocates fixed number of buckets is classified as

A) dynamic hashing
B) static hashing
C) external hashing
D) internal hashing

MCQ 100: The collection of known and useful raw facts that has some meaning and can be processed in useful way is classified as

A) management oriented facts
B) updated facts
C) data
D) recorded facts

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