Database Systems Practice Test 89

Constraints in DBMS Quiz Questions and Answers PDF - 89

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Constraints in DBMS Questions and Answers PDF Download: Quiz 89

MCQ 441: When an entity in set A is associated with any number of entities in set B, the cardinality is of type

All-to-all
One-to-many
One-to-one
Many-to-many

MCQ 442: Assertion have special form known to be

Domain constraints
Referential integrity constraints
Both A and B
Isolation constraint

MCQ 443: A single transaction failure may result into a set of transaction rollbacks, is known to be

Iterated rollback
Cascadeless rollback
Cascading rollback
Serial rollback

MCQ 444: A model that uses a collection of basic objects, and relationships among these objects, is known as

Relational model
Entity relationship model
Object-based Data model
Semi-structured data model

MCQ 445: An unordered set of attribute values is named as

Tuples
Entities
Nodes
Instances

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