TCS Placement C, C++ Questions 2010 Part 2

For questions 14,15,16,17 use the following alternatives:

a. int     b. char     c. string     d. float

14.     '9'

15.     "1 e 02"

16.     10e05

17.     15

18. Read the following code

# define MAX 100

# define MIN 100

....

....

if(x>MAX)

x=1;

else if(x<MIN)

x=-1;

x=50;

if the initial value of x=200,what is the value after executing this code?

(a) 200             (b) 1             (c) -1             (d) 50

19. A memory of 20 bytes is allocated to a string declared as char *s then the following two statements are executed:

s="Entrance"

l=strlen(s);

what is the value of l ?

(a)20             (b)8             (c)9             (d)21

20. Given the piece of code

int a[50];

int *pa;

pa=a;

To access the 6th element of the array which of the following is incorrect?

(a) *(a+5) (b) a[5] (c) pa[5] (d) *(*pa + 5}

21. Consider the following structure:

struct num nam

{

int no;

char name[25];

}

struct num nam n1[]={{12,"Fred"},{15,"Martin"},{8,"Peter"},{11,Nicholas"}};

.....

.....

printf("%d%d",n1[2],no,(*(n1 + 2),no) + 1);

What does the above statement print?

(a) 8,9             (b) 9,9             (c) 8,8             (d) 8, unpredictable value

22. Identify the in correct expression

(a)a=b=3=4; (b)a=b=c=d=0; (c)float a=int b= 3.5; (d)int a; floatb;a=b=3.5;