- C - Home
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- C - Basic Syntax
- C - Data Types
- C - Variables
- C - Integer Promotions
- C - Type Conversion
- C - Type Casting
- C - Booleans
- Constants and Literals in C
- C - Constants
- C - Literals
- C - Escape sequences
- C - Format Specifiers
- Operators in C
- C - Operators
- C - Arithmetic Operators
- C - Relational Operators
- C - Logical Operators
- C - Bitwise Operators
- C - Assignment Operators
- C - Unary Operators
- C - Increment and Decrement Operators
- C - Ternary Operator
- C - sizeof Operator
- C - Operator Precedence
- C - Misc Operators
- Decision Making in C
- C - Decision Making
- C - if statement
- C - if...else statement
- C - nested if statements
- C - switch statement
- C - nested switch statements
- Loops in C
- C - Loops
- C - While loop
- C - For loop
- C - Do...while loop
- C - Nested loop
- C - Infinite loop
- C - Break Statement
- C - Continue Statement
- C - goto Statement
- Functions in C
- C - Functions
- C - Main Function
- C - Function call by Value
- C - Function call by reference
- C - Nested Functions
- C - Variadic Functions
- C - User-Defined Functions
- C - Callback Function
- C - Return Statement
- C - Recursion
- Scope Rules in C
- C - Scope Rules
- C - Static Variables
- C - Global Variables
- Arrays in C
- C - Arrays
- C - Properties of Array
- C - Multi-Dimensional Arrays
- C - Passing Arrays to Function
- C - Return Array from Function
- C - Variable Length Arrays
- Pointers in C
- C - Pointers
- C - Pointers and Arrays
- C - Applications of Pointers
- C - Pointer Arithmetics
- C - Array of Pointers
- C - Pointer to Pointer
- C - Passing Pointers to Functions
- C - Return Pointer from Functions
- C - Function Pointers
- C - Pointer to an Array
- C - Pointers to Structures
- C - Chain of Pointers
- C - Pointer vs Array
- C - Character Pointers and Functions
- C - NULL Pointer
- C - void Pointer
- C - Dangling Pointers
- C - Dereference Pointer
- C - Near, Far and Huge Pointers
- C - Initialization of Pointer Arrays
- C - Pointers vs. Multi-dimensional Arrays
- Strings in C
- C - Strings
- C - Array of Strings
- C - Special Characters
- C Structures and Unions
- C - Structures
- C - Structures and Functions
- C - Arrays of Structures
- C - Self-Referential Structures
- C - Lookup Tables
- C - Dot (.) Operator
- C - Enumeration (or enum)
- C - Structure Padding and Packing
- C - Nested Structures
- C - Anonymous Structure and Union
- C - Unions
- C - Bit Fields
- C - Typedef
- File Handling in C
- C - Input & Output
- C - File I/O (File Handling)
- C Preprocessors
- C - Preprocessors
- C - Pragmas
- C - Preprocessor Operators
- C - Macros
- C - Header Files
- Memory Management in C
- C - Memory Management
- C - Memory Address
- C - Storage Classes
- Miscellaneous Topics
- C - Error Handling
- C - Variable Arguments
- C - Command Execution
- C - Math Functions
- C - Static Keyword
- C - Random Number Generation
- C - Command Line Arguments
- C Programming Resources
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- C - Quick Guide
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- C Online Compiler
C Programming - Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to C Programming Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - What is the output of the following code snippet?
#include<stdio.h>
main()
{
int *p = 15;
printf("%d",*p);
}
Answer : C
Explanation
Runtime error, as the pointer variable is not holding proper address, writing/reading the data from the same raises runtime error.
Q 2 - What is the output of the following program?
#include<stdio.h>
void f()
{
printf(Hello\n);
}
main()
{
;
}
B - Error, as the function is not called.
C - Error, as the function is defined without its declaration
Answer : A
Explanation
No output, apart from the option (a) rest of the comments against the options are invalid.
Q 3 - First operating system designed using C programming language.
Answer : C
Explanation
UNIX. C actually invented to write an operation system called UNIX. By 1973 the entire UNIX OS is designed using C.
Q 4 - What is the output of the following program?
#include<stdio.h>
main()
{
fprintf(stdout,"Hello, World!");
}
Answer : A
Explanation
stdout is the identifier declared in the header file stdio.h which is connected to standard output device (monitor).
Q 5 - What is the output of the following program?
#include<stdio.h>
void main()
{
char s[] = "C++";
printf("%s ",s);
s++;
printf("%s",s);
}
Answer : D
Explanation
s refers to a constant address and cannot be incremented.
Q 6 - How to round-off a value 5.77 to 6.0?
Answer : A
Explanation
ceil( ) function in C returns nearest integer value which is greater than or equal tothe argument passed to thefunction.
#include <math.h>
#include <stdio.h>
int main()
{
float x=5.77;
printf("ceil of %f is %f\n", x, ceil(x));
return 0;
}
Q 7 - Which of the following operator can be used to access value at address stored in a pointer variable?
Answer : A
Explanation
Pointer operator,
* (Value Operator) = Gives Value stored at Particular address
& (Address Operator) = Gives Address of Variable
Q 8 - Which of the following header file can be used to define the NULL macro?
A - stdio.h, locale.h, stddef.h, stdlib.h, string.h,
B - stddef.h, locale.h, math.h, stdlib.h, string.h,
Answer : A
Explanation
In C library, NULL Macrois the value of a null pointer constant. It may be defined as((void*)0), 0or0Ldepending on the compiler merchant.
Q 9 - What will be the output of the following program?
#include<stdio.h>
int main()
{
const int i = 0;
printf("%d\n", i++);
return 0;
}
Answer : D
Explanation
It is because ++needs a value and aconstvariable cant be modified.
#include<stdio.h>
int main()
{
const int i = 0;
printf("%d\n", i++);
return 0;
}
Q 10 - In the given below statement, what does the arr indicate?
char *arr[30];
B - arris a array of 30 characters
Answer : D
Explanation
square parenthesis signify as array at declaration and type is char*, so array of character pointers.