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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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