Subex Azure  Placement Paper   Whole Testpaper    Mt Carmel College, Bangalore-13 Jan 2007

Subex Azure  Placement Paper   Whole Testpaper    Mt Carmel College, Bangalore-13 Jan 2007


  • Posted by  FreshersWorld 
    7 Jan, 2012

     

    SUBEX PAPER ON 14th JANUARY AT BANGALORE

    Hi All,

     I attended the test on 14th Jan 2007 conducted by Subex Azure ltd.The paper had C programming mainly on pointers.

    Part 1: 20 questions in C (1/2 an hour duration)

    Part2: A program to be written (1/2 an hour)

    Part1:

    Assume

           sizeof(char) = 2

           sizeof(int) = 4

           sizeof(float)  = sizeof(pointer) = 4

           sizeof(double)  = 8 

    1.

    #define _LINE_ 10

    main()

    {

    printf("%d",_LINE_);

    }

    2.

    #define STRINGDEF(expr) #expr

     printf(STRINGDEF(10));

    3.

    calculate the following postfix expression

      + * + 2 6 - 1 5 6

    4.

    int i = 260;

    float f = 12.2;

    char c = 'a';

    char *ptr1,*ptr2,*ptr3;

    ptr1 = (char *)&i;

    ptr2 = (char *)&f;

    ptr3 = (char *)&c;

    printf ("%c|%c|%c",*ptr1,*ptr2,*ptr3);

     options:

    a. 260|12|97

    b. 260|12|a

    5.

    int main(int argc,char **argv)

    {

    int *p;

    p = malloc(10 * sizeof(int i));

    realloc(p,0);

    /*(i) */

    return 0;

    What is the state of the marked line (i)?

    options:

    a. dangling pointer p

    b. defined

    c. memory leakage during malloc

    6.

    main()

    {

    int i = 0;

    if(i++,i)

       return 1;

    else

       return 0;

    }

    options:

    1.Always 0

    2.Always 1

    7.

     struct

    {

    unsigned int is_keyword : 1;

    unsigned int is_extern : 1;

    unsigned int is_static : 1;

    }flag;

    /*print the value of is_keyword */

    options:

    1. Compile error

    2. 1

    3. Error, before the :

    8.

    int foo(void)

    {

    char *p;

    int i;

    if (i && (*p=10))

    return 1;

    else

    return 0;

    }

    what will be the outcome if the foo function is called ?

    9.

    int m =1;

    int l =0;

    int i = -1;

    int j =1;

    ....

    for(; i <= (j && 1) && (m &&j); (i >> 4))

    /*sorry i do not exactly remember the for loop,but it actually look like the above for loop */

    .....

    How many times will the loop execute,

    options:

    a. 8

    b. 1

    c. infite times

    10.

    struct

    {

    char *p;

    int i;

    }mem;

    ....

    struct mem member = {"value, 3"},2;

    ....

    options:

    1. compile erroe

    2. state defined

    11.

    struct

     {

      char *name;

      int i;

      union

       {

        char var;

        int integer;

        float var2;

       }

     }ARRAY_SIZE(10);

    ....

    //see the above assumptions

    printf("%d",sizeof(ARRAY_SIZE));

    ....

    options

    1.20

    2.200

    3.16

    4.160

    and rest i do not remember....

    but lot on pointers and preprocessors.

    Part2:

    Write a program to get strings and to substitute character from string1 to string2

    (equv to UNIX command tr)

    for example:

    string1: "abc"

    string2: "def"

    the occurrence of 'a' will be replaced by 'd' , 'b' will be replaced by 'e' , 'c' will be replaced by 'f'

    AND for less complexity assume the string1 and string2 are of same size
    thatz all guys...

    regards
    lingam

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