C++ Programming Questions and Answers – Command Line Arguments

This set of C++ Programming Multiple Choice Questions & Answers (MCQs) focuses on “Command Line Arguments”.

1. What are command line arguments?
a) Arguments passed to main() function
b) Arguments passed to any function
c) Arguments passed to class functions
d) Arguments passed to structure functions
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2. To use command line arguments in C++, how many parameters are passed to the main function?
a) 1
b) 2
c) 3
d) 4
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3. What is the signature of math in function using command line arguments?
a) int main(int argc, char const *argv[]);
b) int main(int argc, char const **argv);
c) int main(int argc, char **argv);
d) all of the mentioned
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4. What does the first parameter of the main function represent?
a) Number of command line arguments
b) List of command line arguments
c) Dictionary of command line arguments
d) Stack of command line arguments
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5. What does the second parameter of the main function represent?
a) Number of command line arguments
b) List of command line arguments
c) Dictionary of command line arguments
d) Stack of command line arguments
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6. Which of the following is correct about the first parameter of the main function?
a) First argument is of int type
b) Stores the count of command line arguments
c) First argument is non-negative
d) All of the mentioned
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7. Which of the following is correct about the second parameter of the main function?
a) Second parameter is an array of character pointers
b) First string of the list is the name of the program’s output fle
c) The string in the list are separated by space in the terminal
d) All of the mentioned
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8. Which of the following gives the name of the program if the second parameter to the main fucntion is char **argv?
a) argv[3]
b) argv[1]
c) argv[0]
d) argv[2]
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9. What will be the output of the following C++ code if the following arguments are executed on terminal?

================program.cpp================
#include <iostream>
using namespace std;
int main(int argc, char const *argv[])
{
	for(int i=0;i<argc;i++)
		cout<<argv[i]<<"\n";
}
=======================================
================commands===============
$ g++ program.cpp -o output
$ ./output Hello World
=======================================

a)

./output
Hello
World

b)

Hello
World

c)

program.cpp
Hello

d)

program.cpp
Hello
World

10. Which character is used to separate different arguments?
a) #
b) $
c) space
d) |
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11. Which is the correct way of handling arguments with spaces?
a) Use single quotes
b) Either single or double quotes
c) Use double quotes
d) There is no way of handling arguments with space
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12. Which of the following is correct to interpret Hello World as a single argument?

1) $ ./output 'Hello World'
2) $ ./output "Hello World"

a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
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Sanfoundry Global Education & Learning Series – C++ Programming Language.

To practice all areas of C++ language, here is complete set of 1000+ Multiple Choice Questions and Answers.

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