TCS  Placement Paper   General - Other   -1 Jan 2004

TCS  Placement Paper   General - Other   -1 Jan 2004


  • Posted by  FreshersWorld 
    7 Jan, 2012

     

    TCS -- C & COBOL TEST PAPER.

     
    1) Which of these is an invalid dataname?

       a) wd-count               b) wd_count

       c) w4count                d) wdcountabcd

     
    2) What is the output of the following program ?

       main ()

       {

          unsigned int i;

          for (i = 10; i >= 0; i--)

                 printf ("%d", i);

       }

    a)      prints numbers 10 - 0     

    b)      b) prints nos 10 - 1

       c)                             

       d) goes into infinite loop

     
    11) What is the value of the following expression?

        i = 1;

        i << 1 % 2

        a) 2  b)

        c) 1  d) 0

     
    12) What is the value of the following expression?

        i = 1;

        i = (i <<= 1 % 2)

     
        a) 2       b)

        c) 0       d) erroneous syntax

    What is the result?

     
    13) *A + 1 - *A + 3

     
    a) -         b) -2

        c) 4        d) none of the above

     
    14) &A[5] - &A[1]?

     

        a)     b)         c) 4      d)

     
    15) C allows

        a) only call by value

        b) only call by reference

        c) both

        d) only call by value and sometimes call by reference

     
    16) The following statement is

        " The size of a struct is always equal to the sum of the sizes of its members"

     a) valid     b) invalid   c) can't say

     
    17) How many x's are printed?

        for (i = 0, j = 10; i < j; i++, j--)

           printf ("x");

        a) 10            b) 5            c) 4            d) none

     
    18) output?

        main ()

        {

           int i = 2, j = 3, k = 1;

           swap (i, j)

           printf ("%d %d", i, j);

        }

        swap (int i, int j)

        {

           int temp;

           temp = i; i = j; j = temp;

        }

        YOU KNOW THE ANSWER

     
    19) main ()

        {

           int i = 2;

           twice (2);

           printf ("%d", i);

        }

        twice (int i)

        {

        bullshit

        }

     
    int i, b[] = {1, 2, 3, 4, 5}, *p;

        p = b;

        ++*p;

        p += 2;

     
    20) What is the value of *p;

        a) 2     b) 3  c) 4  d) 5

     
    21) What is the value of (p - (&p - 2))?

        a)   b) 2  c)    d) 

     
    23) x = fopen (b, c)

        what is b?

        a) pointer to a character array which contains the filename

        b) filename within double quotes

        c) can be anyone of the above

        d) none

     
    24) x = malloc (y).  Which of the following statements is correct.

    a)      x is the size of the memory

    allocated. 

        b) y points to the memory allocated

        c) x points to the memory allocated

        d) none of the above

     
    25) Which is the valid declaration?

        a) #typedef struct { int i;}in;

        b) typedef struct in {int i;};

        c) #typedef struct int {int i;};

        d) typedef struct {int i;} in;

     
    26) Union {

           int no;

           char ch;

        }  u;

     
    What is the output?

        u.ch = '2';

        u.no = 0;

        printf ("%d", u.ch);

     

        a) 2 b) 0  c) null character             d) none

     
    27) Which of these are valid declarations?

        i) union {                  ii) union u_tag {

                  int i;                       int i;

                  int j;                       int j;

           };                               };

     
       iii) union {               iv) union {

                  int i;                         int i;

                  int j;                         int j;

                  FILE k;              }u;

           };               

     
      a) all correct            b) i, ii, iv

        c) ii & iv            d)

     
    28) p and q are pointers to the same type of dataitems.

        Which of these are valid?

          i) *(p+q)

         ii) *(p-q)

        iii) *p - *q

        a) all     b)     c) iii is valid sometimes

     
    29) which are valid?

          i) pointers can be added

         ii) pointers can be subtracted

        iii) integers can be added to pointers

     
      a) all correct             b) only i and ii

     
    30) int *i;

        float *f;

        char *c;

     
    which are the valid castings?

        i) (int *) &c

        ii) (float *) &c

        iii) (char *) &i

     
    31) int i = 20;

          printf ("%x", i);

     
    What is the output?

    a)      x14  b) 14  c) 20 d) none

     
    32) main ()

        {

           char *name = "name";

           change (name);

           printf ("%s", name);

        }

      change (char *name)

        {

           char *nm = "newname";

           name = nm;

        }

        What is the output?

        a) name     b) newname   

        c) name = nm not valid

        d) function call invalid

     
    33) char name[] = {'n', 'a', 'm', 'e'}

        printf ("name = \n%s", name);

        a) name =

            name

        b) name =

            followed by funk characters

        c) name = \n name

        d) none

     
    34) int a = 0, b = 2;

                if (a = 0)

                   b = 0;

                else

                   b *= 10;

        What is the value of b?

        a) 0  b) 20            c) 2            d) none

     
    35) int x = 2, y = 2, z = 1;

        what is the value of x afterh the following statmements?

        if (x = y%2)

           z = crap

        else

           crap

     
    a) 0      b) 2      c) 1         d) none

     
    37) output?

          initially n = -24;

          printf (int n)

        {

           if (n < 0)

           {

                  printf ("-");

                  n = -n;

           }

           if (n % 10)

                  printf ("%d", n);

           else

                  printf ("%d", n/10);

     

           printf ("%d", n);

        }

     
    a)  -24               b) 24     c)       d)  -224

     
    38) float x, y, z;

        scanf ("%f %f", &x, &y);

     
    if input stream contains "4.2 3 2.3 ..." what will x and y contain after scanf?

        a) 4.2, 3.0   b) 4.2, 2.3  c)    d)

     
    39) #define max(a,b) (a>b?b:a)

          #define squre(x) x*x

          int i = 2, j = 3, k = 1;

         printf ("%d %d", max(i,j), square(k));

     
      output?

        a)  32      b)  23     c) 31    d) 13

     
    40) struct adr {

           char *name;

           char *city;

           int zip;

        };

        struct adr *adradr;

        which are valid references?

     

        i) adr->name   X

        ii) adradr->name

        iii) adr.zip   X

        iv) adradr.zip

     
    41) main (x, y)

        int x, char *y[];

        {

           printf ("%d %s", x, y[1]);

        }

        output ? when invoked as prog arg1?

        a. 1 prog b. 1 arg1 c. 2 prog d. 2 arg1

     
    42) extern int s;

        int t;

        static int u;

        main ()

        {

        }

     
    which of s, t and u are available to a function present in another file

        a. only s

        b. s & t

        c. s, t, u

        d. none

     43) main ()

        {

        }

        int a;

        f1(){}

        f2(){}

     
    which of the functions is int a available for?

        a. all of them

        b. only f2

        c. only f1

        d. f1 and f2 only

        int a = 'a', d = 'd';

        char b = "b", c = "cr";

     
    main ()

        {

           mixup (a, b, &c);

        }

        mix-up (int p1, char *p2, char **p3)

        {

           int *temp;

           ....doesn?t matter.....

        }

     
    44) What is the value of a after mix-up?

        a)  a   b) b            c) c    d) none

     
    45) What is the value of b after mix-up?

         a)  a               b) b      c) c    d) none

     
    46) main ()

        {

           char s[] = "T.C.S", *A;

           print(s);

        }

        print (char *p)

        {

           while (*p != '\0')

           {

                  if (*p != ".")

                     printf ("%s", *p);

                  p++;

           }

        }

        output?

        a) T.C.S      b) TCS  c)       d) none

     
    47) A question on do ... while

     
    48) A question on % operator

     
    49) main ()

        {

           int ones, twos, threes, others;

           int c;

           ones = twos = threes = others = 0;

           while ((c = getchar ()) != EOF)

                       {

                              switch (c)

                              {

                                 case '1': ++ones;

                                 case '2': ++twos;

                                 case '3': ++threes;

                                               break;

                                 default: ++others;

                                               break;

                              }

                       }

                  printf ("%d %d", ones, others);

              }

        if the input is "1a1b1c" what is the output?

        a) 13         b)            c)   33         d) 31

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