Which software utility serves as an interface between an application program and the physical database files? MCQ with Answer and Explanation

Question
Which software utility serves as an interface between an application program and the physical database files?
A. Linker
B. Database Management System (DBMS)
C. Operating System
D. Compiler
Answer: Option B
Solution (By JKSSB Mock Tests)
A Database Management System (DBMS) acts as an interface between application software and the underlying physical database, managing data storage, retrieval, and updates.
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
In SQL, what does the wildcard '%' match when used with LIKE?
A. Any single character
B. Only digits
C. A specific character
D. Any string of zero or more characters
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Correct Answer: Option D

Explanation:
'%' matches any sequence of zero or more characters, while '_' matches a single character.
This question belongs to: Computer Database Management System (DBMS)
Question #2
What is the main advantage of using a DBMS?
A. Data sharing and concurrency control
B. Reduced application development time
C. All of the above
D. Data integrity and security
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Correct Answer: Option C

Explanation:
DBMS provides numerous benefits including data sharing, concurrency control, integrity, security, and reduces development time.
This question belongs to: Computer Database Management System (DBMS)
Question #3
What is a database lock?
A. A user account
B. A backup file
C. A type of index
D. A mechanism to prevent simultaneous access to the same data causing inconsistency
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Correct Answer: Option D

Explanation:
Locking is a concurrency control mechanism that ensures data integrity during simultaneous transactions.
This question belongs to: Computer Database Management System (DBMS)
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