Database Management System MCQs with Answers
Practice important Database Management System MCQs with answers and explanations.
Multiple Choice Questions
Q91: In the database design phase, what type of data model is often used to create a conceptual design?
- A: Relational data model
- B: ER-Data model
- C: Network data model
- D: Hierarchical data model
View Answer
B
Q92: What is the purpose of a cross-reference matrix in database design?
- A: To map database objects to physical servers
- B: To help identify the relationships between database entities and reports
- C: To track database performance
- D: To generate SQL queries
View Answer
B
Q93: Which type of database design uses a specific DBMS for logical implementation?
- A: Conceptual database design
- B: Physical database design
- C: Logical database design
- D: None of the above
View Answer
C
Q94: What is a Record-Based Data Model used for?
- A: Defining abstract data types
- B: Designing user interfaces
- C: Managing records at all three levels of database architecture
- D: None of the above
View Answer
C
Q95: Which of the following is NOT a type of Record-Based Data Model?
- A: Hierarchical data model
- B: Network data model
- C: Relational data model
- D: ER-Data model
View Answer
D
Q96: What is the key advantage of separating conceptual, logical, and physical database designs?
- A: Improved system speed
- B: Simplified user access
- C: Enhanced abstraction and flexibility
- D: Reduced data storage
View Answer
C
Q97: What is the E-R data model used for?
- A: Logical operations
- B: Physical data storage
- C: Graphical representation of conceptual database design
- D: Simplifying code logic
View Answer
C
Q98: Which data model is more expressive for designing a conceptual database?
- A: Hierarchical
- B: Network
- C: Semantic
- D: Relational
View Answer
C
Q99: What type of data model is the E-R data model?
- A: Physical
- B: Semantic
- C: Conceptual
- D: Relational
View Answer
B
Q100: In the E-R data model, what is the basic building block?
- A: Attribute
- B: Relationship
- C: Entity
- D: Database
View Answer
C