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C Programming Language Assessment

C Programming Language Assessment Answer. In this post you will get Correct Quiz & Assessment Answer Of C Programming Language 

 

C Programming Language Assessment

Offered By ”LinkedIn”

 

Q1. Which Code sample will eventually cause the computer to run out of memory ?
  • while(1)
    {
        char *smallString = (char *) malloc(10);
    }

Q2. What will this code print on the screen?

A is greater then B C is fun!

 A is greater then B B is greater then A C is fun!

 A is greater then B B is greater then A

 Northing is printed on Screen

Q3. What is the name for calling a function inside the same function?

 recursion
 subfunction
 inner call
 infinite loop

Q4. What does the declaration of variable c2 demonstrate?

 character arithmetic
 undefined assignment
 type conversion
 invalid declaration

Q5. A pointer to void named vptr, has been set to point to a floating point variable named g. What is the valid way to dereference vptr to assign its pointed value to a float variable named f later in this program?

 f = _(float _)vptr;
 f = (float *)vptr;
 f = (float)*vptr;
 f = *(float)vptr;

Q6. What is this declaration an example of?

 a node
 a linked list
 a stack
 a binary tree

Q7. A C header file is a file with extension .h that contains function declarations and macro definitons to be shared between several source files. Header files are listed using the preprocessing directive #include, and can have one of the following formats: #include <fileA> or #include “fileB”. What is the difference between these two formats?

The preprocessor will try to locate the fileA in same directory as the source file, and the fileB in a predetermined directory path.
The preprocessor will try to locate the fileA in the fixed system directory. It will try to locate fileB in the directory path designated by the -l option added to the command line while compiling the source code.
 The file using fileA syntax must be system files, of unlimited number. fileB must be a user file at a maximun of one per source file.
 The preprocessor will try to locate the fileA in a predetermined directory path. It will try to locate fileB in the same directory as the source file along with a custom directory path.

Q8. Using a for loop, how could you write a C code to count down from 10 to 1 and display each number on its own line?

int i;
for (i= 10; i>0; i--){
    printf("%d\n", i);
}// end of loop

Q9. What is not one of the reserved words in standard C?

 volatile
 typeof
 register
 typedef

Q10. What does the program shown below return?

 1
 3
 2
 0

Q11. Using the Union declaration below, how many bytes of memory space will the data of this type occupy?

 32
 54
 30
 52

Q12. In this code sample, what is not a problem for C compiler?

 The value of PI needs to be set to 3.141593, not 3.14
 The declaration of PI needs to say const, not constant.
 The data type of PI needs to be float not int.
 The printf statement needs to use PI, not pi.

Q13. Which is the smallest program to compile and run without errors?

 main()
 int main() {return 0;}
 main() { }
 main() { ; }

Q14. What is optional in a function declaration?

data type of parameters
 return type of function
 parameter names
 number of parameters

Q15. C treats all devices, such as the display and the keyboard, as files. Which files opens automatically when a program executes?

 stdout
 stdio.h
 default.h
 string.h

Q16. In which segment does dynamic memory allocation takes place?

 BSS Segment
 stack
 heap
 data segment

Q17. Which of the following do you use to deallocate memory?

 dalloc()
 dealloc()
 release()
 free()

Q18. In C language what are the basic building blocks that are constructed together to write a program?

keywords
 identifiers
 tokens
 functions

Q19. When is memory for a variable allocated?

 during the assigment of the variable
 during the initialization of the variable
 during the declaration of the variable
 during the definition of the variable

Q20. By default c uses the call by value method to pass arguments to functions. How can you invoke the call by reference method?

 by using pointers
 by declaring functions separately from defining them
 by using recursive functions
 by using global variables

Q21. A union allows you to store different _ in the same _.

 Objects; Structure
 Variables; Declaration
 Data types; Memory location
 Arrays; Header file

Q22. What is the output of this program?

 32
 Runtime error
 -32
 0

Q23. What is the difference between scanf() and sscanf() functions?

 The scanf() function reads data formatted as a string; The sscanf() function reads string input from the screen.
 The scanf() function reads formatted data from the keyword; The sscanf() function reads formatted input from a string.
 The scanf() function reads string data from the keyword; The sscanf() function reads string data from a string.
 The scanf() function reads formatted data from a file; The sscanf() function reads input from a selected string

Q24. What is not a valid command with this declaration?

char *string[20] = { "one", "two", "three"};

 printf(“%c”, string[1][2]);
 printf(“%s”, string[1][2]);
 printf(“%s”, string[1]);
 printf(string[1]);

Q25. What is the expression player->name equivalent to?

 player.name
 (*player).name
 *player.name
 player.*name

Q26. Which program will compile and run without errors?

main() {
    int i=0;
    for(; i<10; i++) ;
}

Q27. What does this function call return?

  •  2
     2.000000
     a runtime error
     a compiler error

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