Amazon Technical Paper 2 - Interview Preparation MCQ

Which of the following statements are correct about an array?

1: The array int num [26]; can store 26 elements.

2: The expression num [1] designates the very first element in the array.

3: It is necessary to initialize the array at the time of declaration.

4: The declaration num [SIZE] is allowed if SIZE is a macro.

Which of the following function is used to find the first occurrence of a given string in another string?

What will be the output of the program in 16-bit platform (Turbo C under DOS)?

#include

Int main()

{

Printf(%d, %d, %d, sizeof(3.0f), sizeof(3)), sizeof(3.0);

Return 0;

}

Which of the following statements are correct ?

1:A string is a collection of characters terminated by .

2:The format specifier %s is used to print a string.

3: The length of the string can be obtained by strlen().

4:The pointer CANNOT work on string.

Point out the error in the program?

#incluse

int main()

{

struct emp

{

char name[20];

float sal;

};

struct emp e[10];

int i;

for(i=0; i<=9; i++)

scanf(“%s  %f e[i].name, &e[i].sal);

return 0;

}

What is the similarity between a structure, union and enumeration?

What will be the output of the program?

#include

int main()

{

enum days {MON=-1, TUE, WED=6, THU, FRI, SAT};

printf("%d, %d, %d, %d, %d, %d ", MON, TUE, WED, THU, FRI, SAT);

return 0;

}

What will be the output of the program ?

#include

struct course

{

int courseno;

char coursename[25];

};

int main()

{

struct course c[] = { {102,Java},

{ 103, PHP},

{104, DotNet}           };

printf(%d, c[1].courseno);

printf(%sm, (*(c+2)).coursename);

return 0;

}    

Point out the error in the program

#include

int main()

{

int I;

#if A

printf(Enter any number:);

scanf(%d, &i);

#elif B

printf( The number is odd);

return 0;

}

What are the different types of real data type in C?

What do the following declaration signify?i

nt *ptr[30];

Which of the following function is correct that finds the length of a string?