DBMS MCQ QUESTIONS MODEL PAPER – 7

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DBMS MCQ QUESTIONS MODEL PAPER – 7

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1. What is the primary disadvantage of using a file system for data management compared to a database system?

a. Improved data integrity 

b. Increased data security 

c. Limited data redundancy 

d. Difficulty in ensuring data consistency

 

Answer: d. Difficulty in ensuring data consistency

 

 2. In a file system, data redundancy is more likely to occur compared to a database system. What does data redundancy refer to?

a. Storing data in multiple locations for improved security 

b. The duplication of data in multiple files or records 

c. Restricting access to data retrieval operations 

d. Accelerating data retrieval

 

Answer: b. The duplication of data in multiple files or records

 

 3. Why do database systems provide better data integrity compared to file systems?

a. File systems have better data validation mechanisms 

b. Database systems enforce data constraints and relationships 

c. File systems use advanced encryption algorithms 

d. Database systems have faster data retrieval operations

 

Answer: b. Database systems enforce data constraints and relationships

 

 4. What is the role of a database system in handling data relationships compared to a file system?

a. File systems have better support for defining and maintaining data relationships 

b. Database systems provide mechanisms to define and maintain relationships between tables 

c. Both file systems and database systems have equal capabilities in handling data relationships 

d. Database systems lack support for data relationships

 

Answer: b. Database systems provide mechanisms to define and maintain relationships between tables

 

 5. Why is data retrieval more efficient in a database system than in a file system?

a. File systems use advanced indexing techniques 

b. Database systems have a more complex structure 

c. Database systems use query optimization and indexing mechanisms 

d. File systems do not require complex queries

 

Answer: c. Database systems use query optimization and indexing mechanisms

 

 6. What is a disadvantage of using a file system for data management in terms of data independence?

a. File systems facilitate changes in the data structure without affecting applications 

b. File systems make it challenging to make changes to the data structure without affecting applications 

c. Database systems do not support data independence 

d. File systems are more flexible in adapting to changes in the data structure

 

Answer: b. File systems make it challenging to make changes to the data structure without affecting applications

 

 7. In a file system, how is data typically organized compared to a database system?

a. Data is organized in a structured manner with relationships in a file system 

b. Data is organized in a tabular format with tables, rows, and columns in a file system 

c. Data is organized in an unstructured format in a file system 

d. Data organization in a file system is similar to that in a database system

 

Answer: c. Data is organized in an unstructured format in a file system

 

 8. What is a key advantage of using a database system over a file system in terms of data security?

a. File systems provide better access controls 

b. Database systems have limited access control mechanisms 

c. Database systems offer robust access controls and authentication 

d. File systems do not require access controls

 

Answer: c. Database systems offer robust access controls and authentication

 

 9. What is the disadvantage of using a file system for data management in terms of data consistency?

a. File systems make it easier to ensure data consistency compared to database systems 

b. File systems enforce data consistency more efficiently 

c. Database systems provide better mechanisms for ensuring data consistency 

d. Both file systems and database systems have equal capabilities in ensuring data consistency

 

Answer: c. Database systems provide better mechanisms for ensuring data consistency

 

 10. How do database systems contribute to data concurrency control compared to file systems?

a. File systems provide better support for managing multiple users accessing data simultaneously 

b. Database systems manage and coordinate multiple users accessing data simultaneously more effectively 

c. Both file systems and database systems have equal capabilities in supporting data concurrency 

d. File systems do not support data concurrency control

 

Answer: b. Database systems manage and coordinate multiple users accessing data simultaneously more effectively

11. What is the primary disadvantage of using a file system for data management in terms of data redundancy?

a. File systems have mechanisms to eliminate data redundancy 

b. File systems facilitate efficient storage of redundant data 

c. Database systems introduce more redundancy compared to file systems 

d. File systems make it challenging to control and reduce data redundancy

 

Answer: d. File systems make it challenging to control and reduce data redundancy

 

 12. Why do database systems provide better data abstraction compared to file systems?

a. File systems have more sophisticated abstraction mechanisms 

b. Database systems do not support data abstraction 

c. Database systems hide the complexity of data storage and retrieval through abstraction layers 

d. File systems provide better control over data representation

 

Answer: c. Database systems hide the complexity of data storage and retrieval through abstraction layers

 

 13. How do database systems contribute to data scalability compared to file systems?

a. File systems are more scalable than database systems 

b. Database systems have limitations in handling growing amounts of data and users 

c. Database systems facilitate scalability by efficiently managing large volumes of data and users 

d. File systems do not require scalability mechanisms

 

Answer: c. Database systems facilitate scalability by efficiently managing large volumes of data and users

 

 14. What role does a database system play in supporting data independence compared to a file system?

a. File systems provide better support for data independence 

b. Database systems do not support data independence 

c. Database systems facilitate changes in the database schema without affecting applications 

d. Both file systems and database systems have equal capabilities in supporting data independence

 

Answer: c. Database systems facilitate changes in the database schema without affecting applications

 

 15. What is a key advantage of using a file system for data management in terms of simplicity?

a. File systems are more complex than database systems 

b. File systems are simpler and easier to manage for small-scale data storage 

c. Database systems introduce unnecessary complexity 

d. File systems and database systems have equal complexity

 

Answer: b. File systems are simpler and easier to manage for small-scale data storage

 

 16. In a file system, how is data typically accessed and retrieved compared to a database system?

a. Both file systems and database systems use similar mechanisms for data retrieval 

b. File systems provide more efficient data retrieval mechanisms 

c. Data retrieval in file systems is less structured and more manual 

d. Database systems do not support data retrieval operations

 

Answer: c. Data retrieval in file systems is less structured and more manual

 

 17. What is a key limitation of using a file system for data management in terms of data sharing and collaboration?

a. File systems are more efficient in supporting data sharing 

b. File systems do not support data sharing and collaboration 

c. Database systems introduce obstacles to data sharing 

d. File systems provide better tools for collaborative data management

 

Answer: b. File systems do not support data sharing and collaboration

 

 18. How does a database system contribute to data recovery after system failures compared to a file system?

a. File systems provide better mechanisms for data recovery after system failures 

b. Database systems lack mechanisms for data recovery after system failures 

c. Both file systems and database systems have equal capabilities in data recovery 

d. Database systems provide mechanisms for efficient data recovery after system failures

 

Answer: d. Database systems provide mechanisms for efficient data recovery after system failures

 

 19. What is the role of a database system in supporting data backup compared to a file system?

a. File systems are more efficient in supporting data backup 

b. Database systems do not support data backup 

c. Database systems provide mechanisms for regular data backup and restore 

d. Both file systems and database systems have equal capabilities in supporting data backup

 

Answer: c. Database systems provide mechanisms for regular data backup and restore

 

 20. Why is data consistency more challenging to achieve in a file system compared to a database system?

a. File systems provide better tools for enforcing data consistency 

b. File systems have more sophisticated mechanisms for data validation 

c. Database systems offer more robust mechanisms for ensuring data consistency 

d. Data consistency is equally challenging in both file systems and database systems

 

Answer: c. Database systems offer more robust mechanisms for ensuring data consistency

 

 21. What is a key advantage of using a database system over a file system in terms of data retrieval operations?

a. File systems have more efficient mechanisms for data retrieval 

b. Database systems provide better control over data retrieval with query optimization and indexing 

c. Both file systems and database systems have equal capabilities in data retrieval 

d. Database systems introduce more complexity in data retrieval

 

Answer: b. Database systems provide better control over data retrieval with query optimization and indexing

 

 22. How do file systems and database systems differ in terms of data representation?

a. Both use similar data representation formats 

b. File systems provide more flexibility in data representation 

c. Database systems have a more structured and standardized approach to data representation 

d. Data representation is equally complex in both file systems and database systems

 

Answer: c. Database systems have a more structured and standardized approach to data representation

 

 23. What is the primary limitation of using a file system for data management in terms of data access controls?

a. File systems provide better access controls compared to database systems 

b. File systems do not support access controls and authentication mechanisms 

c. Database systems have more robust access controls and authentication 

d. Both file systems and database systems have equal capabilities in access controls

 

Answer: b. File systems do not support access controls and authentication mechanisms

 

 24. How does a database system contribute to data sharing and collaboration compared to a file system?

a. File systems are more efficient in supporting data sharing and collaboration 

b. Database systems introduce obstacles to data sharing and collaboration 

c. Both file systems and database systems have equal capabilities in supporting data sharing 

d. Database systems provide tools for collaborative data management and sharing

 

Answer: d. Database systems provide tools for collaborative data management and sharing

 

 25. What is a key advantage of using a file system for data management in terms of implementation simplicity?

a. File systems are more complex than database systems 

b. File systems provide better tools for managing complexity 

c. Both file systems and database systems have equal complexity in implementation 

d. File systems are simpler and easier to implement for certain tasks

 

Answer: d. File systems are simpler and easier to implement for certain tasks

 

 26. In a file system, how is data typically organized in comparison to a database system?

a. Both file systems and database systems organize data in a structured manner 

b. File systems provide better organization and structure to data 

c. Data organization is less structured and more manual in file systems 

d. Database systems lack tools for data organization

 

Answer: c. Data organization is less structured and more manual in file systems

 

 27. Why do file systems face challenges in ensuring data consistency compared to database systems?

a. File systems have more robust mechanisms for data consistency 

b. File systems provide better support for transactions 

c. Database systems offer more advanced mechanisms for ensuring data consistency 

d. Ensuring data consistency is equally challenging in both file systems and database systems

 

Answer: c. Database systems offer more advanced mechanisms for ensuring data consistency

 

 28. What is the primary advantage of using a file system for data management in terms of implementation flexibility?

a. File systems are more rigid and less flexible in implementation 

b. File systems provide better support for adapting to changes in the data structure 

c. Both file systems and database systems have equal flexibility in implementation 

d. File systems lack tools for implementing flexibility

 

Answer: b. File systems provide better support for adapting to changes in the data structure

 

 29. How do file systems and database systems differ in terms of data redundancy control?

a. Both have equal mechanisms for controlling data redundancy 

b. File systems provide better tools for controlling data redundancy 

c. Database systems make it more challenging to control data redundancy 

d. Data redundancy control is equally efficient in both file systems and database systems

 

Answer: b. File systems provide better tools for controlling data redundancy

 

 30. What role does a database system play in supporting data transactions compared to a file system?

a. File systems provide more efficient mechanisms for handling data transactions 

b. Database systems introduce challenges in handling data transactions 

c. Both file systems and database systems have equal capabilities in handling data transactions 

d. Database systems facilitate efficient management of data transactions

 

Answer: d. Database systems facilitate efficient management of data transactions

 

 31. How do file systems and database systems differ in terms of data retrieval flexibility?

a. Both provide equal flexibility in data retrieval 

b. File systems offer more flexible mechanisms for data retrieval 

c. Database systems provide more structured and flexible data retrieval options 

d. Data retrieval flexibility is equally challenging in both file systems and database systems

 

Answer: c. Database systems provide more structured and flexible data retrieval options

 

 32. What is a key limitation of using a file system for data management in terms of data modeling?

a. File systems provide better support for representing data relationships 

b. File systems lack tools for data modeling and representing complex structures 

c. Both file systems and database systems have equal capabilities in data modeling 

d. File systems are more efficient in representing complex data structures

 

Answer: b. File systems lack tools for data modeling and representing complex structures

 

 33. Why do database systems offer better support for data concurrency control compared to file systems?

a. File systems have more advanced mechanisms for data concurrency control 

b. File systems do not support data concurrency control 

c. Database systems provide better coordination and management of multiple users accessing data simultaneously 

d. Both file systems and database systems have equal capabilities in data concurrency control

 

Answer: c. Database systems provide better coordination and management of multiple users accessing data simultaneously

 

 34. In a file system, how is data typically stored in comparison to a database system?

a. Both file systems and database systems use similar storage mechanisms 

b. File systems provide more efficient storage mechanisms 

c. Data storage is less structured and more manual in file systems 

d. Database systems lack tools for efficient data storage

 

Answer: c. Data storage is less structured and more manual in file systems

 

 35. What is the primary disadvantage of using a file system for data management in terms of data retrieval performance?

a. File systems provide better performance in data retrieval 

b. File systems do not face challenges in data retrieval performance 

c. Database systems offer better performance with query optimization and indexing mechanisms 

d. Both file systems and database systems have equal data retrieval performance

 

Answer: c. Database systems offer better performance with query optimization and indexing mechanisms

 

 36. How do file systems and database systems differ in terms of data organization and structure?

a. Both have equal capabilities in organizing and structuring data 

b. File systems provide more organized and structured data 

c. Data organization is less structured and more manual in file systems 

d. Database systems lack tools for data organization and structure

 

Answer: c. Data organization is less structured and more manual in file systems

 

 37. What is a key advantage of using a database system for data management in terms of data redundancy?

a. Database systems introduce more data redundancy compared to file systems 

b. Database systems provide better tools for controlling and reducing data redundancy 

c. Both file systems and database systems have equal capabilities in data redundancy control 

d. File systems offer better mechanisms for data redundancy control

 

Answer: b. Database systems provide better tools for controlling and reducing data redundancy

 

 38. How does a file system contribute to data sharing and collaboration compared to a database system?

a. File systems provide better tools for collaborative data management and sharing 

b. Database systems introduce obstacles to data sharing and collaboration 

c. Both file systems and database systems have equal capabilities in supporting data sharing 

d. File systems do not support data sharing and collaboration

 

Answer: d. File systems do not support data sharing and collaboration

 

 39. What is a key limitation of using a file system for data management in terms of data independence?

a. File systems facilitate changes in the data structure without affecting applications 

b. File systems make it challenging to adapt to changes in the data structure without affecting applications 

c. Database systems do not support data independence 

d. Both file systems and database systems have equal capabilities in supporting data independence

 

Answer: b. File systems make it challenging to adapt to changes in the data structure without affecting applications

 

 40. How do file systems and database systems differ in terms of data retrieval efficiency for complex queries?

a. Both file systems and database systems provide equal efficiency for complex queries 

b. File systems offer better efficiency in handling complex queries 

c. Database systems have better efficiency with query optimization for complex queries 

d. Data retrieval efficiency for complex queries is equally challenging in both file systems and database systems

 

Answer: c. Database systems have better efficiency with query optimization for complex queries

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