Quiz- 1

Question 1

Time: 00:00:00
Consider following given the code and predict its output.

main()

{

int num[ ] = {1,4,8,12,16};

int *a,*b;

int i;

a=num;

b=num+2;

i=*a+1;

printf("%d,%d,%d\n",i,*a,*b);

}

strchr()

strchr()

strrchr()

strrchr()

strstr()

strstr()

strnset()

strnset()

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Question 2

Time: 00:00:00
What is stderr?

2,1,8

2,1,8

4,1,8

4,1,8

4,4,8

4,4,8

2,4,8

2,4,8

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Question 3

Time: 00:00:00
What will be the output of the program?



#include



int main()

{

    int i;

    char c;

    for(i=1; i<=5; i++)

    {

        scanf("%c", &c); /* given input is 'b' */

        ungetc(c, stdout);

        printf("%c", c);

        ungetc(c, stdin);

    }

    return 0;

}

2, 2, 0, 1

2, 2, 0, 1

1, 2, 1, 0

1, 2, 1, 0

-2, 2, 0, 0

-2, 2, 0, 0

-2, 2, 0, 1

-2, 2, 0, 1

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Question 4

Time: 00:00:00
What will be the output of the program?



#include

int main()

{

int i=-3, j=2, k=0, m;

m = ++i || ++j && ++k;

printf("%d, %d, %d, %d\n", i, j, k, m);

return 0;

}

 

The letter is a Now the letter is A

The letter is a Now the letter is A

The letter is A Now the letter is a

The letter is A Now the letter is a

Error

Error

None of above

None of above

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Question 5

Time: 00:00:00
 
What will be the output of the program?



#include

int main()

{

char ch;

ch = 'A';

printf("The letter is");

printf("%c", ch >= 'A' && ch <= 'Z' ? ch + 'a' - 'A':ch); 

printf("Now the letter is"); printf("%c\n", ch >= 'A' && 

ch <= 'Z' ? ch : ch + 'a' - 'A');

return 0;

}

 

Error: Declaration syntax

Error: Declaration syntax

Error: Expression syntax

Error: Expression syntax

Error: LValue required

Error: LValue required

Error: Rvalue required

Error: Rvalue required

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Question 6

Time: 00:00:00
Point out the error in the program?



#include



int main()

{

int a[] = {10, 20, 30, 40, 50};

int j;

for(j=0; j<5; j++)

{

printf("%d\n", a);

a++;

}

return 0;

}

 

1

1

2

2

3

3

4

4

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Question 7

Time: 00:00:00
What will be the output of the program ?



#include

void fun(int **p);



int main()

{

int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 8, 7, 8, 9, 0};

int *ptr;

ptr = &a[0][0];

fun(&ptr);

return 0;

}

void fun(int **p)

{

printf("%d\n", **p);

}

 

standard error

standard error

standard error types

standard error types

standard error streams

standard error streams

standard error definitions

standard error definitions

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Question 8

Time: 00:00:00
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.

1

1

1,4

1,4

2,3

2,3

2,4

2,4

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Question 9

Time: 00:00:00
Identify which of the following are declarations

1 : extern int x;

2 : float square ( float x ) { ... }

3 : double pow(double, double);

1

1

2

2

3

3

1 & 3

1 & 3

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Question 10

Time: 00:00:00
Which of the following function is used to find the first occurrence

of a given string in another string?

bbbb

bbbb

bbbbb

bbbbb

b

b

Error in ungetc statement.

Error in ungetc statement.

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["0","40","60","80","100"]
["Need more practice! \r\n","Keep trying! \r\n","Not bad! \r\n","Good work! \r\n","Perfect! \r\n"]
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June 24, 2019