Computer Science Unit 3 – Database Management MCQ Question Answers for Various Entrance Exams

 

1. DBA stands for?
a.
b.
c.
d.

2. In a table we can have only ______ primary key.
a.
b.
c.
d.

3. A database can have only one table.(T/F)
a.
b.

4. Which of the following clause return records in ascending order?
a.
b.
c.
d.

5. Which of the following is not the date time data types?
a.
b.
c.
d.

6. ________ are the basic building blocks of a database.
a.
b.
c.
d.

7. We can ______ data in table.
a.
b.
c.
d.

8. Relationship can be created between
a.
b.
c.
d.

9. Select “salary” from emp;
a.
b.
c.
d.

10. In primary key we can enter NULL values.(T/F)
a.
b.

11. Which datatype can store unstructured data in a column?
a.
b.
c.
d.

12. Which command is used to modify data in a table?
a.
b.
c.
d.

13. Duplication of data is called _________.
a.
b.
c.
d.

14. Queries are commands that are used to define the structure and modify the data in a table.(T/F)
a.
b.

15. A field which is ______ for each and every record is called Primary key.
a.
b.
c.
d.

16. A database is an organized collection of _______________.
a.
b.
c.
d.

17. Which of the following will help to maintain unique record in the table?
a.
b.
c.
d.

18. Which of the following is not the advantage of database?
a.
b.
c.
d.

19. Duplicate values can be entered in primary key.(T/F)
a.
b.

20. Pickling refers to
a.
b.
c.
d.


 


 
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