What does DBMS stand for? MCQ with Answer and Explanation

Question
What does DBMS stand for?
A. Database Management System
B. Data Backup Management System
C. Dynamic Binary Manipulation System
D. Digital Business Management Software
Answer: Option A
Solution (By JKSSB Mock Tests)
DBMS stands for Database Management System, which is software for creating and managing databases.
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
What is the purpose of the SQL GROUP BY ... HAVING combination?
A. To sort groups
B. To select individual rows
C. To filter groups based on aggregate values
D. To join groups
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Correct Answer: Option C

Explanation:
HAVING is used in conjunction with GROUP BY to filter groups based on conditions applied to aggregate functions.
This question belongs to: Computer Database Management System (DBMS)
Question #2
What is a subquery in SQL?
A. A query that returns multiple results
B. A query that is used to create a table
C. A query that is always correlated
D. A query nested inside another query
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Correct Answer: Option D

Explanation:
A subquery is a SELECT statement nested within another SQL statement (e.g., SELECT, INSERT, UPDATE, DELETE).
This question belongs to: Computer Database Management System (DBMS)
Question #3
What type of join produces a Cartesian product, matching every single row of the first table with every single row of the second table?
A. Inner Join
B. Natural Join
C. Cross Join
D. Left Join
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Correct Answer: Option C

Explanation:
A Cross Join returns the Cartesian product of the two tables, multiplying the total number of rows from the first table by the number of rows in the second table.
This question belongs to: Computer Database Management System (DBMS)
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