DBMS KMBIT04
Q1. A database is an organized collection of _______________.
a. data
b. Attributes
c. Record
d. None of the above
Ans. a (data)
Q2. Which of the following software is appropriate to store data
about school students?
a. MS-Access
b. Writer
c. Calc
d. Impress
Ans. a. MS-Access
Q3. Which of the following is not a database programs?
a. MySQL
b. Oracle
c. Writer
d. OObase
Ans. c. Writer
Q4. __________
store data in Single table.
a. Flat File
b. Relational
c. Single File
d. One File
Ans. a. Flat File
Q5. ___________
are dedicated computers that hold the actual databases and run only DBMS and
related Software.
a. Main Server
b. Web Server
c. Database Server
d. Non Database Server
Ans. c. Database Server
Q6. GUI act as front end and database server act as _____
a. Container
b. Back End
c. End
d. None of the above
Ans. b. Back End
Q7. Duplication of data is called _________.
a. Inconsistency
b. Consistency
c. Redundancy
d. Foreign Key
Ans. c. Redundancy
Q8. Which of the following is not the advantage of database?
a. Sharing of Data
b. Reduce Data Redundancy
c. Increase Data Inconsistency
d. Data Security
Ans. c. Increase Data Inconsistency
Q9. Data Integrity means that data is accurate and consistent in
the database.(T/F)
a. True
b. False
Ans. a. True
Q10. A database can have only one table.(T/F)
a. True
b. False
Ans. b. False
Q11. Which of the following will help to maintain unique record
in the table?
a. Foreign Key
b. Primary Key
c. Composite Key
d. Alternate Key
Ans. b. Primary Key
Q12. Which of the following field of table “Book” can act as
primary key?
a. Book_number
b. Subject
c. price
d. Author_name
Ans. a. Book_number
Q13. When primary key is made up of two or more columns then it
is called __ primary
key.
a. Mixed
b. Reference
c. Composite
d. Compost
Ans. c. Composite
Q14. Duplicate values can be entered in primary key.(T/F)
a. True
b. False
Ans. False
Q15. 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
Ans. d. Foreign Key
Q16. A field which is ______
for each and every record is called Primary key.
a. Common
b. Same
c. Unique
d. None of the above
Ans. c. Unique
Q17. When data is stored, maintained and retrieved from multiple
tables then special database software are required called ______
a. DBMS
b. RDBMS
c. Special DBMS
d. All of the above
Ans. b. RDBMS
Q18. Identify the Foreign Key from table “Sales”
Table Client:
ClientID (primary Key)
clientname
clientphone
Table : Sales
SalesID (Primary Key)
ClientID
Profit
a. SalesID
b. Profit
c. Clientphone
d. ClientID
Ans. d. ClientID
Q19. Which of the following is not valid field of table
“Student”
a. admno
b.name
c. fees
d. salary
Ans. d. salary
Q20. There can be multiple primary key in a table.(T/F)
a. True
b. False
Ans. False
Q21. In RDBMS, data is organized in the form of
__________________
a. Table
b. Record
c. Field
d. None of the above
Ans. a. Table
Q22. SQL stands for _________________
a. Structured Queue Language
b. Structured Query Language
c. Structured Query Lang
d. None of the above
Ans. b. Structured Query Language
Q23. All the values in ________
are of same type.
a. Records
b. Table
c. Database
d. Fields
Ans. d. Fields
Q24. ___________
represent a single data item in a table.
a. Tuples
b. Attributes
c. Relation
d. All of the above
Ans. a. Tuples
Q25. In tables, data is organized in the form of rows and
columns.(T/F)
a. True
b. False
Ans. True
Q26. Every row in a table has the same structure.(T/F)
a. True
b. False
Ans. True
Q27. Open Office base is not an open source software.(T/F)
a. True
b. False
Ans. False
Q28. _______________
are the basic building blocks of a database.
a. Tables
b. Record
c. Fields
d. All of the above
Ans. a. Tables
Q29. We can create table :
a. in design view
b. use Wizard
c. Both of the above
d. None of the above
Ans. c. Both of the above
Q30. By default data type of fields is.
a. Text[Varchar]
b. Text[Char]
c. Int
d. Long
Ans. a. Text[Varchar]
Q31. Base automatically adds the column as Primary Key if we
don’t add.(T/F)
a. True
b. False
Ans. True
Q32. By default the length of Varchar data type is __
a. 20
b. 30
c. 40
d. 50
Ans d. 50
Q33. By default the name of the table is ______
a. Tab 1
b. Table 1
c. First Table
d. Untitled 1
Ans b. Table 1
Q34. __________ are used to identify which type of data we are
going to store in the database.
a. Datatype
b. Record
c. Table
d. Attributes
Ans. a. Datatype
Q35. Which data type will be appropriate to store information as
Salary, Fees, Price etc
b. Alphanumeric Data types
a. Numeric Data type
c. Binary Data types
d. Date Time
Ans a. Numeric Data type
Q36. Which of the following is not a numeric data type?
a. Tinyint
b. Smallint
c. Boolean
d. Date
Ans d. Date
Q37. Which of the following data types can not store decimal
values?
a. Decimal
b. Real
c. Numeric
d. Boolean
Ans d. Boolean
Q38. Which of the following will occupy more space in computer
memory?
a. Bigint
b. Integer
c. Smallint
d. Boolean
Ans a. Bigint
Q39. _______
data types are used for storing photos, music files etc
a. Binary
b. Alphanumeric
c. Numeric
d. Special
Ans a. Binary
Q40. Char is a ______ length
data type and varchar is a ______
length data type.
a. Fixed, Variable
b. Variable, Fixed
c. Variable, Variable
d. Fixed, Fixed
Ans. a. Fixed, Variable
Q41. Which field is suitable for storing records of employees?
a. EmpNo
b. Empname
c. Salary
d. All of the above
Ans. d. All of the above
Q42. Auto Value is a property of __ data type .
a. Numeric
b. Character
c. Binary
d. Date
Ans. a. Numeric
Q43. Which of the following property help to set the number of
characters in Varchar type.
a. Auto value
b. Required
c. Default Value
d. Length
Ans. d. Length
Q44. Which property ensures that field can not be left blank?
a. Entry required
b. Format
c. Required Entry
d. Required
Ans. a. Entry required
Q45. By default the length of the Integer data type is
______________
a. 10
b. 15
c. 20
d. 25
Ans. a. 10
Q46. Which of the following property to be turned “yes” so that
value will be auto incremented?
a. Default
b. Format
c. Auto value
d. Length
Ans. c. Auto value
Q47. Which of the following is not the binary data types?
a. Longvarbinary
b. Varbinary
c. Binary
d. Charbinary
Ans. d. Charbinary
Q48. Which of the following is not the date time data types?
a. Date
b. Time
c. Datestamp
d. Timestamp
Ans. c. Datestamp
Q49. Which data type is used to store value of fields like “Date
of Birth”?
a. Date Time
b. Varchar
c. Integer
d. Other
Ans. a. Date Time
Q50. A record in table is also known as Attribute.(T/F)
a. True
b. False
Ans. b. False
Q51. We can ____________________
data in table.
a. modify
b. insert
c. delete
d. all of the above
Ans. d. all of the above
Q52. In which view data can be entered in table?
a. Datasheet view
b. Design view
c. Both of the above
d. None of the above
Ans. a. Datasheet view
Q53. In which mode we can change the structure of table?
a. Datasheet view
b. Design view
c. Structure view
d. All of the above
Ans. b. Design view
Q54. After inserting records in table, we can not modify the
structure of table.(T/F)
a. True
b. False
Ans. b. False
Q55. Sorting means to arrange data in _______________ order.
a. increasing
b. decreasing
c. increasing or decreasing
d. None of the above
Ans. c. increasing or decreasing
Q56. Referential Integrity is used to maintain accuracy and
consistency of data in a relationship.(T/F)
a. True
b. False
Ans. a. True
Q57. In Base data can be linked between two or more tables with
the help of _________________
a. primary key
b. foreign key
c. primary and foreign key
d. None of the above
Ans. c. primary and foreign key
Q58. Relationship can be created between
a. two tables only
b. one table only
c. two or more tables
d. none of the above
Ans. c. two or more tables
Q59. Relationship between tables can be created from _____________________ menu.
a. View
b. Insert
c. Windows
d. Tools
Ans. d. Tools
Q60. There are __________________ types
of relationship which can be created between tables.
a. three
b. two
c. four
d. infinite
Ans. a. three
Q61. Which language help to extract/fetch data from table?
a. MySQL
b. Python
c. OOBase
d. HTML
Ans. a. MySQL
Q62. We can create query (in Open Office Base) in _______________________
a. In design view
b. Using wizard
c. Both of the above
d. None of the above
Ans. c. Both of the above
Q63. Queries are commands that are used to define the structure
and modify the data in a table.(T/F)
a. True
b. False
Ans. a. True
Q64. We can not delete the data using queries.(T/F)
a. True
b. False
Ans. b. False
Q65. SQL stands for __________________
a. Structural Query Language
b. Structured Query Language
c. Skeletal Query Language
d. None of the above
Ans. a. Structural Query Language
Q66. ___________ statement
is used to retrieve data from table.
a. Delete
b. Update
c. Print
d. Select
Ans. d. Select
Q67. ____________ is
the most common DML command.
a. Delete
b. Update
c. Select
d. All of the above
Ans. c. Select
Q68. DML stands for ____________
a. Data Manipulation Language
b. Database Manipulation Language
c. Data Modify Language
d. None of the above
Ans. a. Data Manipulation Language
Q69. Which of the following clause return specific rows?
a. Order By
b. Where
c. Having
d. Specific
Ans. b. Where
Q70. Which of the following clause return records in ascending
order?
a. Order By
b. Where
c. Order Asc
d. Order Inc
Ans. a. Order By
Q71. Command to display all the data in the table “emp” is.
a. Select * from emp
b. Select * from emp;
c. Select all from emp
d. Select all from emp;
Ans. b. Select * from emp;
Q72. Which command is used to create table?
a. Select
b. Create
c. Open
d. New
Ans. b. Create
Q73. Shortcut to execute query in Create Query in SQL View
is __
a. F7 Key
b. F5 Key
c. F8 Key
d. F6 Key
Ans. b. F5 Key
Q74. Which command is used to display the salary of all the
employees after incrementing by 1000.
a. Select
b. Update
c. Modify
d. Change
Ans. a. Select
Q75. Select “salary” from emp;
a. will display all the records of table emp
b. will display only particular columns of table
emp;
c. will display only salary column of table emp;
d. None of the above
Ans. c. will display only salary column of table
emp;
Q76. Select “empname”, “salary” * 3 from emp;
a. will increase the salary three times of all
employees in table
b. display name and three times salary
c. give error
d. None of the above
Ans. b. display name and three times salary
Q77. To get details about the list of students whose favorite
color is blue. Query for this is :
a. select all from Stud where fav_Color=’Blue’;
b. select name from Stud where fav_Color=’Blue’;
c. select * from Stud where fav_Color=’Blue’;
d. select all from Stud where fav_Color is ’Blue’;
Ans. c. select * from Stud where fav_Color=’Blue’;
Q78. select * from Stud order by “Rollno” ASC;
a. display all the records of table.
b. display records in increasing order of roll
number.
c. both of the above
d. none of the above
Ans. b. display records in increasing order of roll
number.
Q79. Which command is used to modify data in table?
a. delete
b. select
c. modify
d. update
Ans. d. update
Q80. Which command is used to delete data from table?
a. select
b. delete
c. insert
d. remove
Ans. b. delete
Q81. Update statement is used to modify data in a table.(T/F)
a. True
b. False
Ans. a. True
Q82. Command to increase the salary of all employees by
15000.(table name emp and column name sal)
a. update emp set sal = sal + 15000;
b. update emp set sal = 15000;
c. update set sal = sal + 15000;
d. None of the above
Ans. a. update emp set sal = sal + 15000;
Q83. By default data is arranged in _____ order using order by
clause.
a. Ascending
b. Descending
c. Primary Key
d. None of the above
Ans. a. Ascending
Q84. Which of the following is DML commands?
a. Insert
b. Update
c. Delete
d. All of the above
Ans. d. All of the above
Q85. A ________ provides
a systematic way of storing information into the database.
a. Report
b. Query
c. Form
d. None of the above
Ans. c. Form
Q86. Which of the following act as an interface to view, enter
and change data in database?
a. Report
b. Table
c. Query
d. Form
Ans. d. Form
Q87. A _____________ helps
to display the data in a summarized data.
a. Report
b. Form
c. Query
d. None of the above
Ans. a. Report
Q88. A _______ helps
to collect specific information from the pool of data.
a. Query
b. Report
c. Form
d. None of the above
Ans. a. Query
Q89. Which of the following is to be created first?
a. Report
b. Query
c. Form
d. Table
Ans. Table
Q90. Which of the following field is invalid for storing
information of “Library” Table?
a. Cost
b. Booknumber
c. Authorname
d. Dateofbirth
Ans. d. Dateofbirth
Q91. Which of the following is suitable to act as a primary key
in table student?
a. Rollno
b. Name
c. Class
d. Section
Ans. a. Rollno
Q92. A foreign key is a reference of the ________ key in another table.
a. Alternate
b. Primary
c. Candidate
d. None of the above
Ans. b. Primary
Q93. A table is a collection of logically related data.(T/F)
a. True
b. False
Ans. a. True
Q94. _______ tables
can be created in a database.
a. 1
b. 2
c. 3
d. More than 3
Ans. d. More than 3
Q95. In primary key we can enter NULL values.(T/F)
a. True
b. False
Ans. b. False
Q96. Only numeric fields can act
as a primary key in a table.(T/F)
a. True
b. False
Ans. b. False
Q97. Primary key increases data redundancy.(T/F)
a. True
b. False
Ans. b. False
Q98. In a table we can have only ______ primary
key.
a. 1
b. 2
c. 3
d. more than 3
Ans. a. 1
Q99. A foreign key is a primary
key in other table.(T/F)
a. True
b. False
Ans. a. True
Q100. Duplicate values can be entered in Foreign key.(T/F)
a. True
b. False
Ans. a. True
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