Question

What is file extension of C++ source code file ?
A. .cp
B. .cplus
C. .cpp
D. .ccp

Answer 1

will use the ".cpp" extension

Today this is the practice, most C++ implementation files will use the ".cpp" extension and ".h" for the declaration of header files (the last one is still shared across most assembler and C compilers). There are other common extensions variations, such as, ".cc", ".C", ".cxx", and ".c++" for "implementation" code.

C++ track: compiling C++ programs. ... C++ source code files are always compiled into binary code by a program called a "compiler" and then executed.

Answer 2

option (c) .cpp
.cpp is file extension of c++ source code file