21. What is the purpose of sprintf?
    

1. 1. It writes the formatted data into a file

   
   
   

   2. It prints the data into stdout

   
   
   

   3. It writes the formatted data into a string

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   It writes the formatted data into a string

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22. The syntax to print a % using printf statement can be done by ________.
    

1. 1. \%

   
   
   

   2. %%

   
   
   

   3. ‘%’

   
   
   

   4. %

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   %%

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23. What is the meaning of the following C statement?
    

    printf(“%10s”, state); 
    

1. 1. Print empty spaces if the string state is less than 10 characters

   
   
   

   2. Print the last 10 characters of the string

   
   
   

   3. 10 spaces before the string state is printed

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Print empty spaces if the string state is less than 10 characters

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24. What are the Properties of first argument of a printf() functions?
    

1. 1. There may no be first argument

   
   
   

   2. It is defined by user

   
   
   

   3. It keeps the record of the types of arguments that will follow

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   It keeps the record of the types of arguments that will follow

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25. What will be the output of the following C code?
    

    #include <stdio.h>
        int main()
        {
            int num;
            scanf("%d", num);
            printf("%d\n", num);
            return 0;
        }
    

1. 1. Whatever user types

   
   
   

   2. Compilation Error

   
   
   

   3. Depends on the standard

   
   
   

   4. Undefined behavior

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Undefined behavior

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