Introduction to Database System – Online MCQs Test – Computer Science 9th

1. It is a collection of data elements organized in shape of rows and columns:

2. The shape that is used to represent an attribute in an ERD is:

3. In ERD, relationships are symbolically represented by:

4. (145, -35, 74586) are the examples of the data types called:

5. The basic limitation of a flat file database is that:

6. This shape is used to define an entity in ERD.

7. The relationship that matches one record of an entity with only one record of another entity is called:

8. In database, relationships make use of:

9. A key that defines a relationship between two entities is called:

10. Which of the following Microsoft Office packages is a DBMS?

11. Usually a third entity known as “junction table” is used to create the:

12. With the help of a junction table, many-to-many relationship is a combination of two:

13. (01-01-2020 11:30 ) are the example of the data types called:

14. This type of relationship is used to divide larger entities into smaller ones.

15. (5.6, 3.14, 554.9) are the examples of the data types called:

16. The marks record prepared by a class teacher is also an example of a table.

17. The Components of ERD include:

18. They are used to express how the information will be stored in database.

19. String data type can store:

20. Several data records make up a: