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

1. It is process of developing conceptual representation of data objects and their relations.

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

3. It is the smallest component in a database:

4. (01-01-2020 11:30 ) are the example of the data types called:

5. The most common type of relationship used in relational databases is:

6. The data types which holds only whole numbers is called:

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

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

9. In a relational database, keys are used to create a:

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

11. Several data records make up a:

12. In a database table of “Students”, the particulars of a single student will be a:

13. A _______ stores data in an organized form.

14. Data Redundancy means:

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

16. The Components of ERD include:

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

18. In database, relationships make use of:

19. A field that stores the names of students should be defined as:

20. There are three most important components of data models, which are: