DBMS-Entity Relationship (E-R) Model Questions and Answers
The Entity Relationship (E-R) Model is a key database design concept in DBMS that represents real-world data relationships. These programming interview questions with answers help you master how entities, attributes, and relationships interact within a database schema. Understanding E-R diagrams is essential for database normalization, query design, and relational mapping — skills highly valued in Infosys, TCS, Capgemini, and Wipro technical interviews. Practicing DBMS E-R Model questions with answers ensures conceptual clarity and improves your ability to design and interpret data models. Start now to enhance your database fundamentals and succeed in both academic and placement-level assessments.
DBMS-Entity Relationship (E-R) Model
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38 questions
21. An entity type that is not existence-dependent on some other entity type is called a strong entity type
- TRUE
- FALSE
22. An entity type that is not existence-dependent on some other entity type is called a strong entity type
- TRUE
- FALSE
23. Weak entities are also referred to as child, dependent or subordinate entities.
- TRUE
- FALSE
24. Anentity type can be an object with a physical existence but cannot be an object with a conceptual existence
- TRUE
- FALSE
26. In an E-R diagram, the entity name is written in uppcase whereas the attribute name is written in lowercase letters.
- TRUE
- FALSE
29. An association among three entities is called:
- binary relationship.
- ternary relationship
- recursive relationship
- none of these
30. The association between the two entities is called.
- binary relationship
- ternary relationship
- recursive relationship
- none of these