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Chapter 12: Database Management System Exam Tests

Database Management System MCQs - Chapter 12

Relational Data Model and Database Constraints MCQ (Multiple Choice Questions) PDF - 2

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Relational Data Model & Database Constraints Questions & Answers PDF Download: MCQ Quiz 2

MCQ 6: In a relation schema, each key of schema having more than one key is classified as

A) candidate key
B) super key
C) simple key
D) parallel key

MCQ 7: In the data model schemas, the constraints that are can not be expressed directly are classified as

A) application based constraints
B) semantic constraints
C) business rules
D) all of above

MCQ 8: The cardinality in relational data model is considered as

A) total number of values
B) limited number of values
C) two numbers from set
D) three numbers from set

MCQ 9: The constraint violated when the given value of attribute is not included in the corresponding domain is

A) domain constraint
B) attribute constraint
C) key constraint
D) lock constraint

MCQ 10: If two or more constraints are violated by using insert operation then by default the

A) insert is accepted
B) insert is rejected
C) insertion permanently blocked
D) none of above

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Relational Data Model & Database Constraints App (Android & iOS)

Relational Data Model & Database Constraints App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

Semantic Web App (Android & iOS)

Semantic Web App (Android & iOS)

Computer Basics App (Android & iOS)

Computer Basics App (Android & iOS)