Data Types: Interactive Quizzes for Year 11 Computing Students

Question 1

Which data type is utilized to represent whole numbers without a decimal point?

Accepted Answer

Integer

Answer

Floating-point number

Answer

Character

Answer

String

Question 2

What is the range of possible values representable by a 32-bit signed integer?

Accepted Answer

-2^31 to 2^31 - 1

Answer

0 to 2^32 - 1

Answer

-2^32 to 2^32 - 1

Answer

0 to 2^31 - 1

Question 3

Which data type is utilized to represent numbers with a decimal point?

Accepted Answer

Floating-point number

Answer

Integer

Answer

Character

Answer

String

Question 4

Which data type is utilized to represent a single character?

Accepted Answer

Character

Answer

Integer

Answer

Floating-point number

Answer

String

Question 5

Which data type is utilized to represent a sequence of characters?

Accepted Answer

String

Answer

Integer

Answer

Floating-point number

Answer

Character

Question 6

In Python, which of the following is NOT a valid data type?

Accepted Answer

Array

Answer

Integer

Answer

Float

Answer

Boolean

Question 7

In Java, what is the defining distinction between a variable and a constant?

Accepted Answer

Variables can be changed, while constants cannot

Answer

Constants can be changed, while variables cannot

Answer

Variables are stored in memory, while constants are not

Answer

Constants are stored in memory, while variables are not

Question 8

What is the primary purpose of using data types in programming?

Accepted Answer

To specify the type of data that can be stored in variables

Answer

To protect data from unauthorized access

Answer

To improve the performance of programs

Answer

To prevent errors in code

Question 9

What is the output of the following Python code: print(type(False))

Accepted Answer

bool

Answer

int

Answer

float

Answer

str

Question 10

Which of the following is NOT a fundamental data type in computing?

Accepted Answer

GPS coordinates

Answer

Integer

Answer

String

Answer

Boolean

Question 11

What is the range of values that can be stored in an 8-bit signed integer?

Accepted Answer

-128 to 127

Answer

-255 to 255

Answer

0 to 255

Answer

0 to 65535

Question 12

Which data type is used to represent a single alphabetical or numerical character?

Accepted Answer

Character

Answer

String

Answer

Integer

Answer

Boolean

Question 13

Which data type can store decimal values?

Accepted Answer

Floating-point number

Answer

Integer

Answer

Character

Answer

String

Question 14

Which data type is appropriate for representing individual characters?

Accepted Answer

Character

Answer

Integer

Answer

Floating-point number

Answer

String

Question 15

Which data type is used to represent a sequence of characters?

Accepted Answer

String

Answer

Integer

Answer

Floating-point number

Answer

Character

Question 16

Which of the following is NOT a valid variable name in Python?

Accepted Answer

while

Answer

x

Answer

123

Answer

my_variable

Question 17

What is the primary purpose of type casting in Python?

Accepted Answer

Convert one data type to another

Answer

Determine the data type of a variable

Answer

Create a new variable

Answer

Delete a variable

Question 18

Which operator is used for string concatenation in Python?

Accepted Answer

+

Answer

*

Answer

&

Answer

|

Question 19

What data type does the following literal represent: 'Hello World'?

Accepted Answer

String

Answer

Integer

Answer

Float

Answer

Character

Question 20

Which data type is used to store whole numbers?

Accepted Answer

Integer

Answer

Float

Answer

String

Answer

Character

Question 21

What is the maximum value that can be stored in a 32-bit signed integer?

Accepted Answer

2,147,483,647

Answer

9,223,372,036,854,775,807

Answer

18,446,744,073,709,551,615

Answer

4,294,967,295

Question 22

What is the ASCII code representing the uppercase letter 'A'?

Accepted Answer

65

Answer

97

Answer

122

Answer

32

Question 23

Explain the primary distinction between a string and a character in terms of data storage.

Accepted Answer

A string comprises multiple characters, while a character represents a single unit.

Answer

A character is a sequence of strings, while a string represents a single unit.

Answer

A string stores numbers, while a character stores text.

Answer

There is no difference between a string and a character.

Question 24

Which data type is specifically designed to store whole numbers, excluding decimals?

Accepted Answer

Integer

Answer

Float

Answer

String

Answer

Character

Question 25

Determine the maximum value that can be stored in a 32-bit signed integer.

Accepted Answer

2^31 - 1

Answer

2^31

Answer

2^32

Answer

2^32 - 1

Question 26

Identify the option that does NOT represent a floating-point number.

Accepted Answer

123

Answer

123.45

Answer

0.0

Answer

1e10

Question 27

Define the fundamental difference between a character and a string in terms of data representation.

Accepted Answer

A character is a single symbol or letter, whereas a string is a sequence of characters.

Answer

A character is a number, whereas a string is a sequence of characters.

Answer

A character is a symbol, whereas a string is a number.

Answer

There is no distinction between a character and a string.

Question 28

Explain the primary purpose of data types in programming.

Accepted Answer

To specify the kind of data stored in variables.

Answer

To guarantee data security.

Answer

To optimize program efficiency.

Answer

To simplify data manipulation.

Question 29

In Python, when is a `bytes` object more suitable than a `str` object for storing data?

Accepted Answer

When the data contains characters not found in ASCII.

Answer

When performing many string operations to improve speed.

Answer

When storing text written in Unicode.

Answer

When storing numbers with decimal points.

Question 30

Which data type in computing is used to represent whole numbers without decimal places?

Accepted Answer

Integer

Answer

Floating-point number

Answer

Character

Answer

String

Question 31

What is the range of values that can be stored in a 16-bit signed integer?

Accepted Answer

-32,768 to 32,767

Answer

-128 to 127

Answer

0 to 65,535

Question 32

Which data type is utilized to represent real numbers with decimal places in computing?

Accepted Answer

Floating-point number

Answer

Character

Answer

Integer

Answer

String

Question 33

Which data type is used to store a single character in computing?

Accepted Answer

Character

Answer

Floating-point number

Answer

Integer

Answer

String

Question 34

What is the ASCII code representation of the letter 'A'?

Accepted Answer

65

Answer

97

Answer

120

Answer

100

Question 35

Which data type in computing represents a sequence of characters?

Accepted Answer

String

Answer

Floating-point number

Answer

Integer

Answer

Character

Question 36

In Python, which of the following is NOT a primitive data type?

Accepted Answer

Array

Answer

Boolean

Answer

Integer

Answer

String

Question 37

What is the range of values representable by a 32-bit integer in most programming languages?

Accepted Answer

-2,147,483,648 to 2,147,483,647

Answer

-128 to 127

Answer

1 to 2,147,483,647

Answer

0 to 4,294,967,295

Question 38

Which syntax is correct for defining a character variable in C++?

Accepted Answer

char c = 'a';

Answer

string c = 'a';

Answer

char c = "a";

Answer

int c = 'a';

Question 39

What is the ASCII code representing the lowercase letter 'a'?

Accepted Answer

97

Answer

65

Answer

122

Answer

110

Question 40

What is the primary purpose of a null character in a string?

Accepted Answer

To signify the string's termination.

Answer

To represent an empty string.

Answer

To fill empty spaces in the string.

Answer

To escape special characters within the string.

Question 41

In Python, which operator is used to compare the equality of two strings?

Accepted Answer

==

Answer

+

Answer

=

Answer

*

Question 42

What is the key distinction between mutable and immutable data types?

Accepted Answer

Mutable data types can be modified after creation, while immutable data types cannot.

Answer

Mutable data types are stored on the heap, while immutable data types are stored on the stack.

Answer

Mutable data types hold references to other data types, while immutable data types do not.

Question 43

Which of the following is NOT a fundamental data type in computing?

Accepted Answer

Time

Answer

Integer

Answer

String

Answer

Floating-point number

Question 44

Which data type is best suited for representing precise monetary values, allowing for both whole and fractional parts?

Accepted Answer

Floating-point number

Answer

Character

Answer

Integer

Question 45

In the American Standard Code for Information Interchange (ASCII), what character code represents the uppercase letter 'A'?

Accepted Answer

65

Answer

10

Answer

48

Answer

97

Question 46

Which of the following is an example of a string data type?

Accepted Answer

Hello World!

Answer

23

Answer

12.5

Answer

A

Question 47

What is the primary purpose of data type conversion?

Accepted Answer

To modify the representation or format of data, enabling its use in different contexts or by different programs.

Answer

To reduce the memory usage of data by converting it to a more compact format.

Answer

To increase the accuracy of data by converting it to a more precise format.

Answer

To protect data from unauthorized access by encrypting it during conversion.

Question 48

Which of the following operators in Python is used to concatenate two strings, combining them into a single string?

Accepted Answer

+

Answer

/

Answer

*

Answer

%

Question 49

Explain the fundamental difference between a character and a string data type.

Accepted Answer

A character is a single symbol, while a string is a sequence or collection of characters.

Answer

A character is a number, while a string is text.

Answer

A character is always uppercase, while a string can be mixed case.

Question 50

Consider the following Python expression: 10 // 3. What integer value will be the result of this expression?

Accepted Answer

3

Answer

30

Answer

10

Answer

3.33