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TCS - Question paper - 14    Conducted On -- -2004   

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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