Free Practice Quiz Question List

01 C++ Fundamentals and Program Structure Online Quiz Questions

Use this free practice quiz with 20 questions to review 01 C++ Fundamentals and Program Structure, test your knowledge, and prepare for your next test or exam.

20 questions

Choose one

1 point

Which part of a C++ program defines its entry-point function?

A
std::cout
B
main
C
#include <iostream>
D
return 0;

True or false

1 point

True or false: C++ comments are ignored during translation.

A
True
B
False

Written response

1 point

What is the technical term for the source produced after an included file's contents are conceptually incorporated and prepared for compilation?

Fill in the blank

1 point

The build stage that handles directives such as #include before ordinary compilation is called .

Choose one

1 point

Which operator is used in std::cin >> age; to read formatted input into age?

A
<<
B
=
C
>>
D
>

True or false

1 point

True or false: When placed between valid tokens, spaces, tabs, and line breaks generally do not change a C++ program's meaning.

A
True
B
False

Choose all

1 point

Which of the following are standard streams provided by the <iostream> header? Select all correct choices.

A
std::cout
B
std::cin
C
std::cerr
D
std::clog
E
std::fstream

Written response

1 point

In the example program, if year is entered as 2000 and current_year is 2026, what integer value is stored in approximate_age?

Fill in the blank

1 point

A typical build proceeds from preprocessing to , which generates lower-level code, and then to , which combines object files and libraries into an executable.

Choose one

1 point

What happens when the command g++ -c greeting.cpp -o greeting.o is used?

A
It runs the executable after building it.
B
It stops after compilation and does not link.
C
It preprocesses only and produces no object file.
D
It enables line-by-line debugging.

Choose all

1 point

Which choices are lexically valid programmer-defined identifiers in C++? Select all correct choices.

A
item_count
B
2value
C
Value2
D
class
E
_temporary

Open ended

1 point

Why can std::getline(std::cin, line) appear to read an empty line immediately after std::cin >> number, and how does std::getline(std::cin >> std::ws, line) address the problem?

Choose one

1 point

Which statement correctly distinguishes the literals "C++" and 'A'?

A
'C++' is a character literal containing several characters.
B
"C++" is a character literal and 'A' is a string literal.
C
"C++" is a string literal and 'A' is a character literal.
D
Both forms are interchangeable representations of the same literal type.

Choose one

1 point

A build command processes #include <iostream> before the compiler generates object code. Which build stage handles this directive?

A
Compilation
B
Preprocessing
C
Linking
D
Execution

Choose one

1 point

A program reads an integer with std::cin >> number and then must read a complete line into line, including spaces. Which approach correctly avoids having std::getline consume the leftover newline?

A
Call std::getline twice
B
Replace std::getline with std::cin >> line
C
Use std::getline(std::cin >> std::ws, line)
D
Add a second integer variable before reading the line

Choose one

1 point

A source file includes a header, and the included contents are incorporated before ordinary compilation. What is the resulting source being processed conceptually called?

A
translation unit
B
Only the original .cpp file before preprocessing
C
The final executable after linking
D
Only the header file by itself

Choose one

1 point

Which combination correctly sends the text Ready and the value of count to standard output in one statement?

A
std::cin with >>
B
std::cerr with <<
C
std::cout with >>
D
std::cout with <<

True or false

1 point

True or false: A C++ block comment can span several lines, and the comment itself is ignored during translation.

A
True
B
False

Written response

1 point

In C++, what operator inserts a value into an output stream such as std::cout?

Written response

1 point

A program uses the formula approximate_age = current_year - year with current_year = 2026. If approximate_age is 17, what birth year does the program infer?