CUET 2024 Computer Science Unit 3 - Database Management MCQs

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

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

a.display name and three times salary

b.None of the above

c.give error

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

2. _______ is the most common DML command.

a.Select

b.Update

c.All of the above

d.Delete

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

a.TRUE

b.FALSE

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

a.Create

b.Delete

c.Alter

d.All of the above

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

a.display all the records of table.

b.both of the above

c.display records in increasing order of roll number.

d.none of the above

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

a.Section

b.Class

c.Name

d.Rollno

7. SQL stands for _________________

a.Structured Query Lang

b.Structured Queue Language

c.None of the above

d.Structured Query Language

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

a.Database

b.Records

c.Table

d.Fields

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

a.VARCHAR

b.NUMERIC

c.CHAR

d.RAW

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

a.Binary Data types

b.Date Time

c.Alphanumeric Data types

d.Numeric Data type

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

a.modify

b.select

c.delete

d.update

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

a.Primary Key

b.Foreign Key

c.Alternate Key

d.First Primary Key

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

a.update set sal = sal + 15000;

b.update emp set sal = 15000;

c.None of the above

d.update emp set sal = sal + 15000;

14. DBA stands for?

a.Data Administration

b.Database Administrator

c.Data Administrator

d.Database Administration

15. The term "SQL" stands for

a.Sequential query language

b.Structured query language

c.Server-side query language

d.Standard query language

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

a.TRUE

b.FALSE

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

a.It is a kind of general software

b.Both A and C

c.It is a type of system software

d.It is a kind of application software

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

a.FALSE

b.TRUE

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

a.Order Asc

b.Where

c.Order By

d.Order Inc

20. The term "ODBC" stands for____

a.Open database connectivity

b.Oracle database connectivity

c.Object database connectivity

d.Oral database connectivity

21. Relationship can be created between

a.none of the above

b.two or more tables

c.one table only

d.two tables only

22. Which of the following clause return specific rows?

a.Order By

b.Specific

c.Where

d.Having

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

a.Reduce Data Redundancy

b.Data Security

c.Increase Data Inconsistency

d.Sharing of Data

24. Pickling refers to

a.converting the structure to a csv filve

b.converting the structure to a file in text file

c.converting the structure to a file in unicode

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

25. We can ______ data in table.

a.modify

b.insert

c.delete

d.all of the above

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

a.Primary Key

b.Alternate Key

c.Composite Key

d.Foreign Key

27. Duplication of data is called _________.

a.Redundancy

b.Consistency

c.Foreign Key

d.Inconsistency

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

a.Record

b.All of the above

c.Tables

d.Fields

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

a.2

b.more than 3

c.3

d.1

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

a.Domains

b.Queries

c.Relations

d.All of the above

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

a.Tuples

b.All of the above

c.Entity

d.Degree

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

a.Same

b.Common

c.Unique

d.None of the above

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

a.FALSE

b.TRUE

34. A database is an organized collection of _______________.

a.Attributes

b.data

c.Record

d.None of the above

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

a.Update

b.Insert

c.None of the above

d.Delete

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

a.Time

b.Date

c.Datestamp

d.Timestamp

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

a.FALSE

b.TRUE

38. Select “salary” from emp;

a.None of the above

b.will display all the records of table emp

c.will display only particular columns of table emp;

d.will display only salary column of table emp;

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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