Practice Library
All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
Choose an option to check your answer.
Correct Answer: C. it stores data as objects with identity, state, and behavior
Explanation:
The correct answer explains object-oriented database model in the context of Advance Data Models.
Choose an option to check your answer.
Correct Answer: D. it stores data as objects with identity, state, and behavior
Explanation:
object-oriented database model is used in Advanced DBMS because it stores data as objects with identity, state, and behavior.
Choose an option to check your answer.
Correct Answer: D. it stores data as objects with identity, state, and behavior
Explanation:
This statement is correct because object-oriented database model means that it stores data as objects with identity, state, and behavior.
Choose an option to check your answer.
Correct Answer: C. an object can be uniquely recognized independent of its attribute values
Explanation:
The correct answer explains object identity in the context of Advance Data Models.
Choose an option to check your answer.
Correct Answer: C. an object can be uniquely recognized independent of its attribute values
Explanation:
object identity is used in Advanced DBMS because an object can be uniquely recognized independent of its attribute values.
Choose an option to check your answer.
Correct Answer: A. an object can be uniquely recognized independent of its attribute values
Explanation:
This statement is correct because object identity means that an object can be uniquely recognized independent of its attribute values.
Choose an option to check your answer.
Correct Answer: C. data and operations are bundled together inside objects
Explanation:
The correct answer explains encapsulation in object-oriented databases in the context of Advance Data Models.
Choose an option to check your answer.
Correct Answer: D. data and operations are bundled together inside objects
Explanation:
encapsulation in object-oriented databases is used in Advanced DBMS because data and operations are bundled together inside objects.
Choose an option to check your answer.
Correct Answer: D. data and operations are bundled together inside objects
Explanation:
This statement is correct because encapsulation in object-oriented databases means that data and operations are bundled together inside objects.
Choose an option to check your answer.
Correct Answer: C. a subclass can reuse and specialize properties of a superclass
Explanation:
The correct answer explains inheritance in object-oriented databases in the context of Advance Data Models.
Choose an option to check your answer.
Correct Answer: D. a subclass can reuse and specialize properties of a superclass
Explanation:
inheritance in object-oriented databases is used in Advanced DBMS because a subclass can reuse and specialize properties of a superclass.
Choose an option to check your answer.
Correct Answer: A. a subclass can reuse and specialize properties of a superclass
Explanation:
This statement is correct because inheritance in object-oriented databases means that a subclass can reuse and specialize properties of a superclass.
