10th-1 TEST Q1

Who developed the C++ programming language?

• Linus Torvalds
• Guido van Rossum
• James Gosling
• Dennis Ritchie
• Bjarne Stroustrup

C++ is an extension of which programming language?

• Swift
• Python
• Ruby
• Java
• C

What symbol is used to end a statement in C++?

• .
• :
• !
• ?
• ;

Which of the following is the correct header for every C++ program?

• #include <stdio.h>

• #include <iostream>

  using namespace std;

• #import <iostream>

• using namespace std;

• #include conio.h

What does the line using namespace std; do?

• It restricts access to the standard library names.
• It creates a new namespace called std.
• It allows access to the standard library names without the 'std::' prefix.
• It imports all libraries from the C++ standard.
• It defines a new standard for C++ programming.

Which of the following displays “Hello World” on the screen in C++?

• int main() { printf('Hello World'); return 0; }

• int main() { cout << 'Hello World'; }
• int main() { cout << "Hello World"; return 1; }

• int main() { print('Hello World'); return 0; }

• int main() { cout << 'Hello World'; return 0; }

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

• $Comment

• # comment
• /* comment */
• // This is a comment

• //

How do you write a multi-line comment in C++?

• /This is a single-line comment in C++ /

• /* This is a multi-line comment in C++ */
• $This is a multiline comment$

• # This is a comment in C++
• // This is a single-line comment in C++

Which of these is a valid variable declaration in C++?

• string = name;

• double 1a;
• int x=5;

• char z == 'a';

• float y

Which of these variable names is NOT valid in C++?

• userAge

• _value

• 2score

• totalSum

• number1