Which of the following is a benefit of DBMS? MCQ with Answer and Explanation

Question
Which of the following is a benefit of DBMS?
A. Increased data inconsistency
B. Data sharing among multiple users
C. Higher data redundancy
D. Limited data access
Answer: Option B
Solution (By JKSSB Mock Tests)
DBMS allows controlled data sharing while maintaining integrity and security.
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
Which database anomaly describes the necessity to update the exact same data value in multiple independent rows, creating a risk of data inconsistency?
A. Structural Anomaly
B. Update Anomaly
C. Insertion Anomaly
D. Selection Anomaly
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Correct Answer: Option B

Explanation:
An Update Anomaly occurs when data is redundantly duplicated across rows, requiring changes to be made to every copy, risking inconsistencies if any row is missed.
This question belongs to: Computer Database Management System (DBMS)
Question #2
Which SQL keyword is used within a SELECT query to filter records matching a specified pattern using wildcards?
A. LIKE
B. BETWEEN
C. IN
D. EXISTS
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Correct Answer: Option A

Explanation:
The LIKE operator is specifically used in a WHERE clause to perform pattern matching on string columns using wildcards (% and _).
This question belongs to: Computer Database Management System (DBMS)
Question #3
What is a database transaction?
A. A query that reads data
B. A backup copy of the database
C. A logical unit of work that consists of one or more SQL statements
D. A database schema
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Correct Answer: Option C

Explanation:
A transaction is a sequence of operations performed as a single logical unit, ensuring ACID properties.
This question belongs to: Computer Database Management System (DBMS)
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