C Programming – Command Line Arguments

C Programming - Command Line Arguments

Question 1

What does argv and argc indicate in command-line arguments?     (Assuming: int main(int argc, char *argv[]) )

A	argument count, argument variable
B	argument count, argument vector
C	argument control, argument variable
D	argument control, argument vector

Question 2

 Which of the following syntax is correct for command-line arguments?

A	int main(int var, char *varg[])
B	int main(char *argv[], int argc)
C	int main() { int argv, char *argc[]; }
D	Both (a) and (b)

Question 3

 In linux, argv[0] by command-line argument can be occupied by

A	./a.out
B	./test
C	./fun.out.out
D	All of the mentioned

Question 4

 What type of array is generally generated in Command-line argument?

A	Single dimension array
B	2-Dimensional Square Array
C	Jagged Array
D	2-Dimensional Rectangular Array

Question 5

 What would be the output if we try to execute following segment of code (assuming the     following input “cool brother in city”)?     printf(“%s\n”, argv[argc]);

A	(null)
B	City
C	In
D	Segmentation Fault

Question 6

The first argument in command line arguments is

A	The number of command-line arguments the program was invoked with;
B	A pointer to an array of character strings that contain the arguments
C	Nothing
D	Both a & b

Question 7

The second (argument vector) in command line arguments is

A	The number of command-line arguments the program was invoked with;
B	A pointer to an array of character strings that contain the arguments,one per string.
C	Nothing
D	Both a & b

Question 8

 argv[0] in command line arguments, is

A	The name by which the program was invoked
B	The name of the files which are passed to the program
C	Count of the arguments in argv[] vector
D	Both a & b

Question 9

 A program that has no command line arguments will have argc

A	Zero
B	Negative
C	One
D	Two

Question 10

The index of the last argument in command line arguments is

A	argc – 2
B	argc + 1
C	argc
D	argc – 1

Question 11

What is the output of this C code (if run with no options or arguments)?

    #include 
    int main(int argc, char *argv[])
    {
    printf("%d\n", argc);
    return 0;
    }

A	0
B	1
C	Depends on the platform
D	Depends on the compiler

Question 12

What is the output of this C code (run without any commandline arguments)?

        #include 
        int main(int argc, char *argv[])
        {
        while (argc--)
        printf("%s\n", argv[argc]);
        return 0;
        }

A	Compile time error
B	Executablefilename
C	Segmentation fault
D	Undefined

Question 13

What is the output of this C code (run without any commandline arguments)?

        #include 
        int main(int argc, char *argv[])
        {
        printf("%s\n", argv[argc]);
        return 0;
        }

A	Segmentation fault/code crash
B	Executable file name
C	Depends on the platform
D	Depends on the compiler

Question 14

What is the output of this C code (run without any commandline arguments)?

        #include 
        int main(int argc, char *argv[])
        {
        while (*argv++ != NULL)
        printf("%s\n", *argv);
        return 0;
        }

A	Segmentation fault/code crash
B	Executable file name
C	Depends on the platform
D	Depends on the compiler

Question 15

What is the output of this C code (run without any command line arguments)?

        #include 
        int main(int argc, char *argv[])
        {
        while (*argv  !=  NULL)
        printf("%s\n", *(argv++));
        return 0;
        }

A	Segmentation fault/code crash
B	Executable file name
C	Depends on the platform
D	Depends on the compiler

Question 16

What is the output of this C code(run without any command line arguments)?

        #include 
        int main(int argc, char *argv[])
        {
        while (argv != NULL)
        printf("%s\n",  *(argv++));
        return 0;
        }

A	Segmentation fault/code crash
B	Executable file name
C	Depends on the platform
D	Depends on the compiler

Check Your Answers:

  1. B

  2. A

  3. D

  4. C

  5. A

  6. A

  7. B

  8. A

  9. C

10. D

11. B

12. B

13. A

14. A

15. B

16. A

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