Quiz: C++ Essentials Quiz


C++ Essentials QuizOnline version Test your C++ basics by FREY DJANGKARU 1 What is the primary purpose of a header file in C++? a To contain executable code only b To manage memory allocation c To define the main function d feedback_required_by_question:true e To store runtime data f To declare interfaces used by multiple source files feedback_type_note_to_student_start:null 2 Which keyword is used to define a constant variable in C++? a immutable b final c let d feedback_type_note_to_student_start:null e const f feedback_required_by_question:true static 3 Which of these is the correct way to define a simple function returning an int? a feedback_type_note_to_student_start:null b def add(a, b): return a + b c feedback_required_by_question:true d int add(int a, int b) { return a + b; } e int add(int a, int b) => a + b; f int add { int a, int b; return a + b; } function int add(a, b) { return a + b; } 4 Which statement best describes a constructor? a A type of loop b A special member function that initializes objects c A global variable initializer d A function that returns a pointer e feedback_type_note_to_student_start:null f feedback_required_by_question:true A macro for object creation 5 What is the purpose of the 'include' directive? a feedback_type_note_to_student_start:null b To copy code from a file into the current file c To create a new file d To declare a variable e To compile the program f feedback_required_by_question:true To execute the code 6 Which of the following is NOT a primitive C++ data type? a feedback_required_by_question:true b float c feedback_type_note_to_student_start:null d char e string f int bool 7 What does RAII stand for in C++? a Resource Acquisition Is Initialization b feedback_required_by_question:true c Runtime API Is Inlined d Resource Allocation Is Integration e feedback_type_note_to_student_start:null f Run-time Allocation Is Immediate Random Access Is Initialized 8 Which statement about templates is true? a They are deprecated in modern C++ b feedback_required_by_question:true c They require runtime type information d feedback_type_note_to_student_start:null e They are used only for I/O operations f They replace the need for headers They enable generic programming with type parameters 9 Which operator is used for dynamic memory allocation in C++? a create b malloc c alloc d reserve e feedback_required_by_question:true f new feedback_type_note_to_student_start:null 10 What is the correct way to declare a copy constructor? a feedback_required_by_question:true b feedback_type_note_to_student_start:null c ClassName& operator=(ClassName other) d ClassName(ClassName other) e ClassName(ClassName other) f ClassName(const ClassName& other) ClassName& ClassName(const ClassName& other) Feedback 1 Header files declare classes, functions, and variables for use in multiple files. 2 The const keyword makes the variable read-only after initialization. 3 C++ uses the syntax shown in option 1; other options are invalid in C++. 4 Constructors set initial state when an object is created. 5 #include pulls in declarations from another file at compile time. 6 std::string is a class, not a primitive type. 7 RAII ties resource lifecycle to object lifetime. 8 Templates let functions/classes operate with any data type. 9 The new operator allocates memory and calls a constructor. 10 Copy constructor takes const reference to another object of the same class.

1

What is the primary purpose of a header file in C++?

a

To contain executable code only

b

To manage memory allocation

c

To define the main function

d

feedback_required_by_question:true

e

To store runtime data

f

To declare interfaces used by multiple source files

feedback_type_note_to_student_start:null

2

Which keyword is used to define a constant variable in C++?

a

immutable

b

final

c

let

d

feedback_type_note_to_student_start:null

e

const

f

feedback_required_by_question:true

static

3

Which of these is the correct way to define a simple function returning an int?

a

feedback_type_note_to_student_start:null

b

def add(a, b): return a + b

c

feedback_required_by_question:true

d

int add(int a, int b) { return a + b; }

e

int add(int a, int b) => a + b;

f

int add { int a, int b; return a + b; }

function int add(a, b) { return a + b; }

4

Which statement best describes a constructor?

a

A type of loop

b

A special member function that initializes objects

c

A global variable initializer

d

A function that returns a pointer

e

feedback_type_note_to_student_start:null

f

feedback_required_by_question:true

A macro for object creation

5

What is the purpose of the 'include' directive?

a

feedback_type_note_to_student_start:null

b

To copy code from a file into the current file

c

To create a new file

d

To declare a variable

e

To compile the program

f

feedback_required_by_question:true

To execute the code

6

Which of the following is NOT a primitive C++ data type?

a

feedback_required_by_question:true

b

float

c

feedback_type_note_to_student_start:null

d

char

e

string

f

int

bool

7

What does RAII stand for in C++?

a

Resource Acquisition Is Initialization

b

feedback_required_by_question:true

c

Runtime API Is Inlined

d

Resource Allocation Is Integration

e

feedback_type_note_to_student_start:null

f

Run-time Allocation Is Immediate

Random Access Is Initialized

8

Which statement about templates is true?

a

They are deprecated in modern C++

b

feedback_required_by_question:true

c

They require runtime type information

d

feedback_type_note_to_student_start:null

e

They are used only for I/O operations

f

They replace the need for headers

They enable generic programming with type parameters

9

Which operator is used for dynamic memory allocation in C++?

a

create

b

malloc

c

alloc

d

reserve

e

feedback_required_by_question:true

f

new

feedback_type_note_to_student_start:null

10

What is the correct way to declare a copy constructor?

a

feedback_required_by_question:true

b

feedback_type_note_to_student_start:null

c

ClassName& operator=(ClassName other)

d

ClassName(ClassName other)

e

ClassName(ClassName other)

f

ClassName(const ClassName& other)

ClassName& ClassName(const ClassName& other)

Feedback

1

Header files declare classes, functions, and variables for use in multiple files.

2

The const keyword makes the variable read-only after initialization.

3

C++ uses the syntax shown in option 1; other options are invalid in C++.

4

Constructors set initial state when an object is created.

5

#include pulls in declarations from another file at compile time.

6

std::string is a class, not a primitive type.

7

RAII ties resource lifecycle to object lifetime.

8

Templates let functions/classes operate with any data type.

9

The new operator allocates memory and calls a constructor.

10

Copy constructor takes const reference to another object of the same class.

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C++ Essentials Quiz

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C++ Essentials QuizOnline version

by FREY DJANGKARU

What is the primary purpose of a header file in C++?

Which keyword is used to define a constant variable in C++?

Which of these is the correct way to define a simple function returning an int?

Which statement best describes a constructor?

What is the purpose of the 'include' directive?

Which of the following is NOT a primitive C++ data type?

What does RAII stand for in C++?

Which statement about templates is true?

Which operator is used for dynamic memory allocation in C++?

What is the correct way to declare a copy constructor?

Feedback

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