Which of the following is an example of a relational database management system (RDBMS)? MCQ with Answer and Explanation

Question
Which of the following is an example of a relational database management system (RDBMS)?
A. Cassandra
B. MongoDB
C. Redis
D. Oracle Database
Answer: Option D
Solution (By JKSSB Mock Tests)
Oracle Database is a well-known RDBMS. MongoDB, Redis, and Cassandra are NoSQL databases.
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
Which normal form is stricter than 3NF and is often described as a configuration where every determinant must be a candidate key?
A. 5NF
B. 4NF
C. Boyce-Codd Normal Form (BCNF)
D. 2NF
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Correct Answer: Option C

Explanation:
Boyce-Codd Normal Form (BCNF) is a stronger version of 3NF. A relation is in BCNF if, for every non-trivial functional dependency X -> Y, X is a candidate key.
This question belongs to: Computer Database Management System (DBMS)
Question #2
In DBMS, what is the role of a DBA?
A. Database Application Builder
B. Dynamic Binary Analyzer
C. Data Backup Assistant
D. Database Administrator who manages the database system
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Correct Answer: Option D

Explanation:
The Database Administrator (DBA) is responsible for designing, implementing, maintaining, and securing the database.
This question belongs to: Computer Database Management System (DBMS)
Question #3
Which clause is used in SQL queries to filter rows and retrieve only those records that satisfy a specific condition?
A. WHERE
B. HAVING
C. GROUP BY
D. ORDER BY
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Correct Answer: Option A

Explanation:
The WHERE clause is used to filter records based on a specified condition before any grouping takes place.
This question belongs to: Computer Database Management System (DBMS)
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