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

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

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

3. In database, relationships make use of:

4. A key that allows only unique entries in a field is called:

5. It is the smallest component in a database:

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

7. A _______ stores data in an organized form.

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

9. Flat file database usually store data as:

10. A contact list is one of the simplest example of a:

11. A single entry in a table is called:

12. In ERD, relationships are symbolically represented by:

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

14. (145, -35, 74586) are the examples of the data types called:

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

16. String data type can store:

17. Data Redundancy means:

18. (5.6, 3.14, 554.9) are the examples of the data types called:

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

20. (01-01-2020 11:30 ) are the example of the data types called: