In DBMS, what is the role of a DBA? MCQ with Answer and Explanation

Question
In DBMS, what is the role of a DBA?
A. Database Application Builder
B. Data Backup Assistant
C. Database Administrator who manages the database system
D. Dynamic Binary Analyzer
Answer: Option C
Solution (By JKSSB Mock Tests)
The Database Administrator (DBA) is responsible for designing, implementing, maintaining, and securing the database.
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
Which of the following is an example of DML command?
A. DROP
B. INSERT
C. CREATE
D. ALTER
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Correct Answer: Option B

Explanation:
INSERT is a Data Manipulation Language (DML) command used to add data to tables.
This question belongs to: Computer Database Management System (DBMS)
Question #2
In normalization, 1NF requires that:
A. There are no transitive dependencies
B. The table has a primary key
C. There are no partial dependencies
D. All attributes have atomic values
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Correct Answer: Option D

Explanation:
First Normal Form (1NF) ensures that each attribute contains only atomic (indivisible) values.
This question belongs to: Computer Database Management System (DBMS)
Question #3
What is a primary key in a database table?
A. A key that is always numeric
B. A key that can contain duplicate values
C. A key that uniquely identifies each row in a table
D. A key that references a column in another table
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Correct Answer: Option C

Explanation:
A primary key is a column or set of columns that uniquely identifies each row in a table, ensuring entity integrity.
This question belongs to: Computer Database Management System (DBMS)
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