Which of the following terms refers to the duplication of data across multiple locations in a non-DBMS file system? MCQ with Answer and Explanation

Question
Which of the following terms refers to the duplication of data across multiple locations in a non-DBMS file system?
A. Data Isolation
B. Data Security
C. Data Integrity
D. Data Redundancy
Answer: Option D
Solution (By JKSSB Mock Tests)
Data Redundancy refers to the unnecessary duplication of the exact same data in multiple files or locations, which wastes storage and can cause inconsistencies.
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
What happens when a database transaction triggers a 'COMMIT' statement?
A. The database structure is dropped.
B. The transaction pauses temporarily.
C. The transaction is aborted and wiped.
D. All changes made by the transaction are made permanent on disk storage.
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Correct Answer: Option D

Explanation:
Executing a COMMIT statement instructs the database engine to save all data updates performed during the transaction permanently into physical storage.
This question belongs to: Computer Database Management System (DBMS)
Question #2
In SQL, which clause is used to specify the table(s) from which to retrieve data?
A. SELECT
B. FROM
C. WHERE
D. GROUP BY
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Correct Answer: Option B

Explanation:
The FROM clause identifies the table(s) from which data is to be selected.
This question belongs to: Computer Database Management System (DBMS)
Question #3
What is the main advantage of using a DBMS over a file system?
A. Data consistency is maintained
B. All of the above
C. Data security and access control are provided
D. Data redundancy is minimized
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Correct Answer: Option B

Explanation:
A DBMS offers advantages like reduced redundancy, consistency, security, concurrent access, and backup/recovery compared to file systems.
This question belongs to: Computer Database Management System (DBMS)
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