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Question 1

Which of the following is a correct variable declaration in C++?

Accepted Answer

int num;

Question 2

Which data type should be used to store a single character in C++?

Accepted Answer

char

Question 3

What was the main reason for the intentionally limited syntax of BASIC (1964)?

Accepted Answer

To make the language easy to learn

Question 4

What is the correct way to comment out multiple lines in C++?

Accepted Answer

/* This is a multi-line comment */

Question 5

What does the -- operator do in C++?

Accepted Answer

Decreases a variable's value by 1

Question 6

How do you correctly start the main function in C++?

Accepted Answer

int main()

Question 7

Use ________ to specify a block of code to be executed, if the same condition is false

Accepted Answer

else

Question 8

What is the purpose of a flowchart in algorithm design?В

Accepted Answer

To visually represent the steps of an algorithmВ

Question 9

Which keyword is used to display output in C++?

Accepted Answer

cout

Question 10

What is the output of the following code snippet? if (10 < 5) { cout << "x is less than 5"; } cout << "End of program";

Accepted Answer

End of program

Question 11

What is the correct file extension for a C++ source file?

Accepted Answer

.cpp

Question 12

What is the difference between = and == in C++?

Accepted Answer

= assigns a value, while == compares two values

Question 13

Which of the following is a correct syntax for an if statement in C++?

Accepted Answer

if (x > 5) { cout << "x is greater than 5"; }

Question 14

What happens to comments when a C++ program is compiled?

Accepted Answer

They are ignored by the compiler

Question 15

Which operator is used to check if one value is less than or equal to another in C++?

Accepted Answer

<=

Question 16

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

Accepted Answer

char

Question 17

Which operator is used to check if one value is greater than another in C++?

Accepted Answer

>

Question 18

What is the correct syntax to declare an integer variable in C++?

Accepted Answer

int x;

Question 19

Use ________ to specify a new condition to test, if the first condition is false

Accepted Answer

else if

Question 20

What type of value does the condition inside an if statement evaluate to?

Accepted Answer

Boolean (true or false)

Question 21

Which of the following is used to output text in C++?

Accepted Answer

cout <<

Question 22

What is the correct syntax for declaring a variable in C++?

Accepted Answer

type variableName = value;

Question 23

What is the purpose of the assignment operator (=) in C++?

Accepted Answer

It assigns a value to a variable

Question 24

Which operator is used to decrease a variable's value by 1 in C++?

Accepted Answer

--

Question 25

Use ________ to specify a block of code to be executed, if a specified condition is true

Accepted Answer

if

Question 26

Which of the following is a correct use of the assignment operator?

Accepted Answer

int x = 10;

Question 27

What is the purpose of syntax in a programming language?

Accepted Answer

To define rules for structuring code

Question 28

Which characteristic does a good algorithm have?В

Accepted Answer

It is clear and unambiguousВ

Question 29

What is an algorithm?

Accepted Answer

A sequence of simple instructions that solve a problem

Question 30

Which operator is used to check if two values are equal in C++?

Accepted Answer

==

Question 31

What is the main difference between // and /* ... */ comments?

Accepted Answer

// is for single-line comments, while /* ... */ is for multi-line comments

Question 32

What is the main goal of debugging in programming?В

Accepted Answer

To find and fix errors in a programВ

Question 33

Which of the following is NOT a component of programming language syntax?

Accepted Answer

Data compression methods

Question 34

What is pseudocode?В

Accepted Answer

A high-level representation of an algorithmВ

Question 35

Which data type is used to store values with two states (true or false) in C++?

Accepted Answer

bool

Question 36

Which data type is used to store whole numbers without decimals in C++?

Accepted Answer

int

Question 37

Which statement about the assignment operator is true?

Accepted Answer

It updates the value stored in a variable

Question 38

Which data type is used to store text in C++?

Accepted Answer

string

Question 39

Which of the following is a single-line comment in C++?

Accepted Answer

// This is a comment

Question 40

Which of the following statements about comments is true?

Accepted Answer

Comments improve code readability but do not affect execution

Question 41

Which operator is used to increase a variable's value by 1 in C++?

Accepted Answer

++

Question 42

Which data type is used to store floating-point numbers with decimals in C++?

Accepted Answer

double

Question 43

What is the purpose of an if statement in C++?

Accepted Answer

To execute a block of code only if a specified condition is true

Question 44

Use ________ to specify many alternative blocks of code to be executed

Accepted Answer

switch

Question 45

What is the purpose of a compiler?

Accepted Answer

To translate source code into machine instructions

Question 46

What is a programming language?

Accepted Answer

A set of keywordssymbols identifiersand rulesforcommunication with computer

Question 47

What is the correct way to declare multiple variables of the same type in C++?

Accepted Answer

int a, b, c;

Question 48

Which operator is used to check if one value is less than another in C++?

Accepted Answer

<

Question 49

Which of the following is a multi-line comment in C++?

Accepted Answer

/* This is a comment */

Question 50

How are syntax rules typically defined?

Accepted Answer

Using the BackusВ–Naur form

Question 51

What is a computer program?В

Accepted Answer

A sequence or set instructions in programminglanguageforacomputer executeB

Question 52

Which operator is used to assign a value to a variable in C++?

Accepted Answer

=

Question 53

Which keyword is used to take user input in C++?

Accepted Answer

cin

Question 54

What does the ++ operator do in C++?

Accepted Answer

Increases a variable's value by 1

Question 55

Why does source code need another program to execute?

Accepted Answer

Because computers can only execute their native machine instructions

Question 56

Which operator is used to check if one value is greater than or equal to another in C++?

Accepted Answer

>=

Question 57

Which of the following is not a valid comment in C++?

Accepted Answer

!! This is a comment !!

Question 58

What is the purpose of comments in C++?

Accepted Answer

To add explanations or notes in the code that are ignored by the compiler

Question 59

Which operator is used to check if two values are not equal in C++?

Accepted Answer

!=

Question 60

What will happen if the condition inside an if statement is false?

Accepted Answer

The block of code inside {} will be skipped

Question 61

What will be the value of x after the following statement? int x = 5; x = 10;

Accepted Answer

10

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