CUET 2024 Computer Science Unit 3 - Database Management MCQs

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

1. Pickling refers to

a.converting the structure to a file in unicode

b.converting the structure to a file in text file

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

d.converting the structure to a csv filve

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

a.select

b.modify

c.delete

d.update

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

a.Record

b.Tables

c.Fields

d.All of the above

4. Duplication of data is called _________.

a.Foreign Key

b.Consistency

c.Redundancy

d.Inconsistency

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

a.display name and three times salary

b.give error

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

d.None of the above

6. Relationship can be created between

a.one table only

b.none of the above

c.two or more tables

d.two tables only

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

a.Same

b.Unique

c.None of the above

d.Common

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

a.Tuples

b.All of the above

c.Degree

d.Entity

9. DBA stands for?

a.Database Administration

b.Data Administrator

c.Data Administration

d.Database Administrator

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

a.Create

b.Alter

c.All of the above

d.Delete

11. Which of the following clause return specific rows?

a.Where

b.Having

c.Order By

d.Specific

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

a.Date Time

b.Numeric Data type

c.Binary Data types

d.Alphanumeric Data types

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

a.NUMERIC

b.RAW

c.CHAR

d.VARCHAR

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

a.It is a type of system software

b.Both A and C

c.It is a kind of application software

d.It is a kind of general software

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

a.None of the above

b.Delete

c.Insert

d.Update

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

a.TRUE

b.FALSE

17. We can ______ data in table.

a.insert

b.modify

c.delete

d.all of the above

18. The term "ODBC" stands for____

a.Open database connectivity

b.Oral database connectivity

c.Oracle database connectivity

d.Object database connectivity

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

a.Order By

b.Order Asc

c.Where

d.Order Inc

20. The term "SQL" stands for

a.Sequential query language

b.Structured query language

c.Server-side query language

d.Standard query language

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

a.Database

b.Table

c.Records

d.Fields

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

a.Section

b.Class

c.Rollno

d.Name

23. SQL stands for _________________

a.None of the above

b.Structured Query Language

c.Structured Query Lang

d.Structured Queue Language

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

a.FALSE

b.TRUE

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

a.None of the above

b.update emp set sal = sal + 15000;

c.update emp set sal = 15000;

d.update set sal = sal + 15000;

26. Select “salary” from emp;

a.will display only particular columns of table emp;

b.will display all the records of table emp

c.None of the above

d.will display only salary column of table emp;

27. _______ is the most common DML command.

a.All of the above

b.Delete

c.Update

d.Select

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

a.TRUE

b.FALSE

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

a.Timestamp

b.Date

c.Time

d.Datestamp

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

a.Sharing of Data

b.Increase Data Inconsistency

c.Reduce Data Redundancy

d.Data Security

31. A database is an organized collection of _______________.

a.data

b.Record

c.None of the above

d.Attributes

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

a.Composite Key

b.Foreign Key

c.Alternate Key

d.Primary Key

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

a.TRUE

b.FALSE

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

a.Alternate Key

b.Primary Key

c.First Primary Key

d.Foreign Key

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

a.All of the above

b.Queries

c.Relations

d.Domains

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

a.FALSE

b.TRUE

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

a.both of the above

b.display all the records of table.

c.none of the above

d.display records in increasing order of roll number.

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

a.1

b.more than 3

c.3

d.2

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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