CS/IT MCQs

Solved MCQ on Database Management System (DBMS) Set – 8

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Here are the collection of solved MCQ questions on database management system includes interview questions on fundamental of DBMS. It includes MCQ questions on the database schema, type of data integrity in DBMS, different types of normal forms, an instance of relation, and DDL used in DBMS commands.

1. The reflexivity property says that X – Y is true if Y is …………………. A) Subset of X
B) Null set of X
C) Superset of Y
D) Subset of Y

2. Anything that affects the database schema is a part of
A) DML
B) DCL
C) DDL
D) All of the above

3. An instance of a relation is a time-varying set of ………………….
A) Tuples
B) Rows
C) Both of them
D) None of them

4. In the ………………… mode any record in the file can be accessed at random
A) Sequential access
B) Random access
C) Standard access
D) Source access

5. Which can be used to delete all the rows if a table?
A) Delete * from table_name
B) Delete from table_name
C) Delete table_name
D) all rows cannot be deleted at a time.

Read Also: Solved MCQ on Database Normalization

6. Which if the following is not the type of data integrity.
A) Key integrity
B) Domain integrity
C) Entity integrity
D) Referential integrity

7. 4NF stands for ..
A) Fourth Normal File
B) Fourth Normal Form
C) Fourth Normal Fraction
D) Fourth Negative File

8. A ……………… allows making copies of the database periodically to help in the cases of crashes & disasters.
A) Recovery utility
B) Backup Utility
C) Monitoring utility
D) Data loading utility

9. ………………. Allows definitions and query language statements to be entered; query results are formatted and displayed.
A) Schema Processor
B) Query Processor
C) Terminal Interface
D) None of the above

10. The main task carried out in the …………… is to remove repeating attributes to separate tables.
A) First Normal Form
B) Second Normal Form
C) Third Normal Form
D) Fourth Normal Form

Answers:

1. A) Subset of X
2. C) DDL
3. C) Both of them
4. B) Random access
5. A) Delete * from table_name
6. A) Key integrity
7. B) Fourth Normal Form
8. B) Backup Utility
9. C) Terminal Interface
10. D) Fourth Normal Form

Read Next: MCQ on Fundamental of Database Management System (DBMS) set-9
Read More: Database Management System MCQ Questions

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