1. PlacementQuestion
2. C Interview Questions
3. Online Test for C

Online Test for C

1. Which of the following is NOT a valid Integer Constant?
   3
   +343
   -765
   10,000

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2. Find Error/Output in follwing code:

                                
#include <stdio.h> 

main( ) {

    int i; 

    for ( i=0; i<5; i++ ) {

        int i = 10;

        printf ( " %d", i );      

        i++; 

    } 

    return 0; 

} 
                                

10 11 12 13 14
10 10 10 10 10
0 1 2 3 4
Compilation error

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3. Every C Program must have one function called?
   switch()
   main()
   struct()
   for()

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4. Which of these assignments is invalid?
   short s = 48;
   float f = 4.3;
   double d = 4.3;
   int I = `1`;

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5. C variable cannot start with
   An alphabet
   A number
   A special symbol other than underscore
   both (b) and (c)

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6. Which is the right way to declare constant in C?
   int constant var =10;
   int const var = 10;
   const int var = 10;
   B & C Both

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7. What does the following declaration mean? int (*ptr) [10];
   ptr is an array of pointers of 10 integers.
   ptr is a pointer to an array of 10 integers.
   ptr is an array of 10 integers.
   None of the above

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8. What is right way to Initialization array?
   int num[6] = { 2, 4, 12, 5, 45, 5 } ;
   int n{} = { 2, 4, 12, 5, 45, 5 } ;
   int n{6} = { 2, 4, 12 } ;
   int n(6) = { 2, 4, 12, 5, 45, 5 } ;

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9. Find Error/Output in follwing code:

                                
main() {

 int i = 2, *j;

 j = &i;

 printf("%d", i**j*i+*j); 

} 
                                

Syntax error due to Invalid expression in printf
Print junk value
16
10

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10. A file opened for writing already exists its contents would be overwritten.
    True
    False

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