TCS NQT Miscellaneous Quiz- 1

Question 1

Time: 00:00:00
Which is the character array used to accept command line arguments?

char argv

char argv

char* argv[]

char* argv[]

char argv[]

char argv[]

char* argv

char* argv

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char *argv[]

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c

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c

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c

Question 2

Time: 00:00:00
What is a dangling pointer ?

points to garbage value

points to garbage value

points to zero

points to zero

points to null value

points to null value

None of the above

None of the above

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When variable goes out of scope or accessing local variable that doesn\'t exist anymore or at the time of deallocation of memory, the pointer becomes a dangling pointer

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destructor

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Destructor arrives during object destruction

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Destructor

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Destructor

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Destructor arrives during object destruction

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when a variable doesn\'t exist anymore, even after destruction of variable the pointer points to the memory which is already freed is called dangling pointer

Question 3

Time: 00:00:00
Which is not a string function ?

strstr

strstr

strupr

strupr

strcmp

strcmp

strchr

strchr

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Strupr converts a string to uppercase

Question 4

Time: 00:00:00
Which of the following does not require to include math.h header file ?

pow()

pow()

rand()

rand()

sqrt()

sqrt()

sinh()

sinh()

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Question 5

Time: 00:00:00
What is the task of pre-processor ?

Compiling

Compiling

Expanding

Expanding

Linking

Linking

All of the above

All of the above

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Question 6

Time: 00:00:00
Which of the following is true ?

realloc() can change the memory size of arrays

realloc() can change the memory size of arrays

Unary operator works on only one operand

Unary operator works on only one operand

Struct and Union works in same way.

Struct and Union works in same way.

None of the above

None of the above

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Question 7

Time: 00:00:00
Which of this is used to skip one iteration:

continue

continue

goto

goto

return

return

break

break

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Question 8

Time: 00:00:00
Which address does a pointer to an array store ?

Memory address of the first element of the array.

Memory address of the first element of the array.

Memory address of the sum of array elements.

Memory address of the sum of array elements.

value of first element of the array.

value of first element of the array.

None of the above.

None of the above.

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Question 9

Time: 00:00:00


Predict the output:
using namespace std;



int main()

{

  float a = 0.1;

  if(a == 0.1)

     printf(“Yes”);

  else

     printf(“No”);

return 0;

}

Yes

Yes

NO

NO

It compares 0 with 0 and since they are equal it will exit the loop immediately

It compares 0 with 0 and since they are equal it will exit the loop immediately

It has syntax error as the same number is being compared with itself

It has syntax error as the same number is being compared with itself

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Printf doesnt end with semicolon ...

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ans is yes

Question 10

Time: 00:00:00
To print out a and b given below, which of the following printf() statement will you use?



#include<stdio.h>



float a=3.14;

double b=3.14;

printf("%Lf %f", a, b);

printf("%Lf %f", a, b);

printf("%f %lf", a, b);

printf("%f %lf", a, b);

printf("%Lf %Lf", a, b);

printf("%Lf %Lf", a, b);

printf("%f %Lf", a, b);

printf("%f %Lf", a, b);

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["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]
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July 14, 2019