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

1. The Components of ERD include:

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

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

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

5. Several data records make up a:

6. (145, -35, 74586) are the examples of the data types called:

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

8. Several data tables make up a:

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

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

11. In ERD, relationships are symbolically represented by:

12. A database is composed of ______ which contain rows and columns.

13. String data type can store:

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

15. (01-01-2020 11:30 ) are the example of the data types called:

16. (5.6, 3.14, 554.9) are the examples of the data types called:

17. Data Redundancy means:

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

19. A single entry in a table is called:

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