CUET 2024 Computer Science Unit 3 - Database Management MCQs

Computer Science Unit 3 – Database Management MCQ Question Answers for CUET 2024

1. A key which is referring to the primary key of another table is called _______

a.First Primary Key

b.Alternate Key

c.Primary Key

d.Foreign Key

2. Which datatype can store unstructured data in a column?

a.VARCHAR

b.NUMERIC

c.RAW

d.CHAR

3. A database is an organized collection of _______________.

a.Record

b.data

c.None of the above

d.Attributes

4. ________ are the basic building blocks of a database.

a.Fields

b.Record

c.All of the above

d.Tables

5. Which of the following is suitable to act as a primary key in table student?

a.Name

b.Class

c.Rollno

d.Section

6. Select “empname”, “salary” * 3 from emp;

a.display name and three times salary

b.give error

c.None of the above

d.will increase the salary three times of all employees in table

7. select * from Stud order by “Rollno” ASC;

a.display records in increasing order of roll number.

b.display all the records of table.

c.both of the above

d.none of the above

8. DBA stands for?

a.Data Administrator

b.Data Administration

c.Database Administration

d.Database Administrator

9. _______ is the most common DML command.

a.Delete

b.All of the above

c.Update

d.Select

10. A database can have only one table.(T/F)

a.TRUE

b.FALSE

11. Which of the following is not the date time data types?

a.Time

b.Datestamp

c.Date

d.Timestamp

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

a.modify

b.update

c.delete

d.select

13. A Database Management System is a type of _________software.

a.It is a kind of general software

b.It is a kind of application software

c.It is a type of system software

d.Both A and C

14. Which of the following clause return specific rows?

a.Order By

b.Having

c.Where

d.Specific

15. Relationship can be created between

a.two or more tables

b.two tables only

c.none of the above

d.one table only

16. Which one of the following commands is used to delete the existing row in a table?

a.Delete

b.Update

c.Insert

d.None of the above

17. A record in table is also known as Attribute.(T/F)

a.TRUE

b.FALSE

18. Which of the following is not the advantage of database?

a.Reduce Data Redundancy

b.Increase Data Inconsistency

c.Sharing of Data

d.Data Security

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

a.TRUE

b.FALSE

20. All the values in ________ are of same type.

a.Table

b.Database

c.Fields

d.Records

21. We can ______ data in table.

a.delete

b.modify

c.insert

d.all of the above

22. Select “salary” from emp;

a.will display only salary column of table emp;

b.will display only particular columns of table emp;

c.None of the above

d.will display all the records of table emp

23. Which of the following clause return records in ascending order?

a.Order By

b.Where

c.Order Inc

d.Order Asc

24. A field which is ______ for each and every record is called Primary key.

a.Unique

b.Same

c.Common

d.None of the above

25. Rows of a relation are known as the _______.

a.Tuples

b.All of the above

c.Entity

d.Degree

26. The term "ODBC" stands for____

a.Oral database connectivity

b.Oracle database connectivity

c.Object database connectivity

d.Open database connectivity

27. Which of the following will help to maintain unique record in the table?

a.Primary Key

b.Composite Key

c.Foreign Key

d.Alternate Key

28. Duplication of data is called _________.

a.Foreign Key

b.Inconsistency

c.Redundancy

d.Consistency

29. In a relation database, every tuple divided into the fields are known as the______.

a.Domains

b.Queries

c.All of the above

d.Relations

30. Which one of the following is a type of Data Manipulation Command?

a.Alter

b.Delete

c.Create

d.All of the above

31. Pickling refers to

a.converting the structure to a file in unicode

b.converting the structure to a csv filve

c.converting the structure to a byte stream before working to the file

d.converting the structure to a file in text file

32. Duplicate values can be entered in primary key.(T/F)

a.FALSE

b.TRUE

33. In primary key we can enter NULL values.(T/F)

a.FALSE

b.TRUE

34. SQL stands for _________________

a.Structured Query Language

b.Structured Query Lang

c.Structured Queue Language

d.None of the above

35. Command to increase the salary of all employees by 15000.(table name emp and column name sal)

a.None of the above

b.update set sal = sal + 15000;

c.update emp set sal = 15000;

d.update emp set sal = sal + 15000;

36. Which data type will be appropriate to store information as Salary, Fees, Price etc

a.Binary Data types

b.Numeric Data type

c.Alphanumeric Data types

d.Date Time

37. In a table we can have only ______ primary key.

a.3

b.more than 3

c.1

d.2

38. The term "SQL" stands for

a.Sequential query language

b.Structured query language

c.Standard query language

d.Server-side query language

Also Check out Related CUET Computer Science MCQs Links
Computer Science UNIT 1 – Computational Thinking and Programming – 2 MCQs

Computer Science Unit 2 – Computer Networks MCQs

CUET 2024 Computer Science Unit 3 – Database Management MCQ Question Answers – MCQs for Practice

Computer Science Unit 3 – Database Management MCQ Question Answers for CUET 2024

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