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    Home » Placement Papers » TCS Placement Papers » Sun Placement Paper 3



    TCS Placement Paper 3

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    This test consists of 50 questions. The Set Code for this paper is D.

    1. The C language terminator is

    (a) semicolon
    (b) colon
    (c) period
    (d) exclamation mark


    2. What is false about the following -- A compound statement is

    (a) A set of simple statments
    (b) Demarcated on either side by curly brackets
    (c) Can be used in place of simple statement
    (d) A C function is not a compound statement.


    3. What is true about the following C Functions

    (a) Need not return any value
    (b) Should always return an integer
    (c) Should always return a float
    (d) Should always return more than one value


    4. Main must be written as

    (a) The first function in the program
    (b) Second function in the program
    (c) Last function in the program
    (d) Any where in the program


    5. Which of the following about automatic variables within a function is correct ?

    (a) Its type must be declared before using the variable
    (b) Tthey are local
    (c) They are not initialised to zero
    (d) They are global


    6. Write one statement equivalent to the following two statements

    x=sqr(a);
    return(x);

    Choose from one of the alternatives

    (a) return(sqr(a));
    (b) printf("sqr(a)");
    (c) return(a*a*a);
    (d) printf("%d",sqr(a));


    7. Which of the following about the C comments is incorrect ?

    (a) Ccommentscan go over multiple lines
    (b) Comments can start any where in the line
    (c) A line can contain comments with out any language statements
    (d) Comments can occur within comments


    8. What is the value of y in the following code?
    x=7;
    y=0;
    if(x=6) y=7;
    else y=1;

    (a) 7
    (b) 0
    (c) 1
    (d) 6


    9. Read the function conv() given below
    conv(int t){
    int u;
    u=5/9 * (t-32);
    return(u);
    }

    What is returned

    (a) 15
    (b) 0
    (c) 16.1
    (d) 29


    10. Which of the following represents true statement either x is in the range of 10 and 50 or y is zero

    (a) x >= 10 && x <= 50 || y = = 0
    (b) x<50
    (c) y!=10 && x>=50
    (d) None of these


    11. Which of the following is not an infinite loop ?

    (a) while(1)\{ ....}

    (b) for(;;)
    {
    ...
    }

    (c) x=0;
    do{
    /*x unaltered within the loop*/
    .....}
    while(x = = 0);

    (d) # define TRUE 0
    ...
    while(TRUE){
    ....}

     

    12. What does the following function print?
    func(int i)
    { if(i%2)return 0;
    else return 1;}
    main()
    {
    int =3;
    i=func(i);
    i=func(i);
    printf("%d",i);
    }

    (a) 3
    (b) 1
    (c) 0
    (d) 2


    13. How does the C compiler interpret the following two statements
    p=p+x;
    q=q+y;

    (a) p=p+x;
         q=q+y
    (b)p=p+xq=q+y
    (c)p=p+xq;
        q=q+y
    (d)p=p+x/q=q+y

     

    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 folllowing 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; float b; a=b=3.5;


    23. Regarding the scope of the varibles;identify the incorrect statement:

    (a)automatic variables are automatically initialised to 0
    (b)static variables are are automatically initialised to 0
    (c)the address of a register variable is not accessiable
    (d)static variables cannot be initialised with any expression


    24. cond 1?cond 2?cond 3?:exp 1:exp 2:exp 3:exp 4;
    is equivalent to which of the following?

    (a)if cond 1
    exp 1;
    else if cond 2
    exp 2;
    else if cond 3
    exp 3;
    else exp 4;

    (b) if cond 1
    if cond 2
    if cond 3
    exp 1;
    else exp 2;
    else exp 3;
    else exp 4;

    (c) if cond 1 && cond 2 && cond 3
    exp 1 |exp 2|exp 3|exp 4;

    (d) if cond 3
    exp 1;
    else if cond 2 exp 2;
    else if cond 3 exp 3;
    else exp 4;

     

    25. The operator for exponencation is

    (a) **
    (b) ^
    (c) %
    (d) not available


    26. Which of the following is invalid

    (a) a+=b
    (b) a*=b
    (c) a»=b
    (d) a**=b


    27. What is y value of the code if input x=10

    y=5;
    if (x==10)
    else if(x==9)
    else y=8;

    (a)9
    (b)8
    (c)6
    (d)7


    28. What does the following code do?

    fn(int n,int p,int r){
    static int a=p;
    switch(n){
    case 4:a+=a*r;
    case 3:a+=a*r;
    case 2:a+=a*r;
    case 1:a+=a*r;}}

    (a)computes simple interest for one year
    (b)computes amount on compound interest for 1 to 4 years
    (c)computes simple interest for four year
    (d)computes compound interst for 1 year


    29. a=0;
    while(a<5)
    printf("%d\\n",a++);

    How many times does the loop occurs?

    (a)infinite
    (b)5
    (c)4
    (d)6


    30. How many times does the loop iterated ?

    for (i=0;i=10;i+=2)
    printf("Hi\\n");

    (a)10
    (b) 2
    (c) 5
    (d) None of these


    31. What is incorrect among the following
    A recursive function

    (a) calls itself
    (b) is equivalent to a loop
    (c) has a termination condition
    (d) does not have a return value at all

     

    32. Which of the following go out of the loop if expn 2 becoming false

    (a) while(expn 1)\{...if(expn 2)continue;}
    (b) while(!expn 1)\{if(expn 2)continue;...}
    (c) do{..if(expn 1)continue;..}while(expn 2);
    (d) while(!expn 2)\{if(expn 1)continue;..\}


    33. Consider the following program

    main()
    {unsigned int i=10;
    while(i>=0){
    printf("%u",i)
    i--;}
    }

    How many times the loop will get executed

    (a)10
    (b)9
    (c)11
    (d)infinite


    34.Pick out the add one out

    (a) malloc()
    (b) calloc()
    (c) free()
    (d) realloc()


    35.Consider the following program

    main(){
    int a[5]={1,3,6,7,0};
    int *b;
    b=&a[2];
    }

    The value of b[-1] is

    (a) 1
    (b) 3
    (c) -6
    (d) none


    36. # define prod(a,b)=a*b
    main(){
    int x=2;
    int y=3;
    printf("%d",prod(x+2,y-10)); }

    the output of the program is

    (a) 8
    (b) 6
    (c) 7
    (d) None


    37.Consider the following program segment

    int n,sum=1;
    switch(n){
    case 2:sum=sum+2;
    case 3:sum*=2;
    break;
    default:sum=0;}

    If n=2, what is the value of sum

    (a) 0
    (b) 6
    (c) 3
    (d) None of these


    38. Identify the incorrect one

    1.if(c=1)
    2.if(c!=3)
    3.if(a<b)then
    4.if(c==1)

    (a) 1 only
    (b) 1&3
    (c) 3 only
    (d) All of the above


    39. The format specified for hexa decimal is

    (a) %d
    (b) %o
    (c) %x
    (d) %u


    40. Find the output of the following program

    main(){
    int x=5, *p;
    p=&x
    printf("%d",++*p);
    }

    (a) 5
    (b) 6
    (c) 0
    (d) none of these


    41.Consider the following C code

    main(){
    int i=3,x;
    while(i>0){
    x=func(i);
    i--; }

    int func(int n){
    static sum=0;
    sum=sum+n;
    return(sum);}

    The final value of x is

    (a) 6
    (b) 8
    (c) 1
    (d) 3


    43. Int *a[5] refers to

    (a) array of pointers
    (b) pointer to an array
    (c) pointerto a pointer
    (d) none of these


    44.Which of the following statements is incorrect

    (a) typedef struct new{
    int n1;
    char n2;
    } DATA;

    (b) typedef struct {
    int n3;
    char *n4;}ICE;

    (c) typedef union{ int n5;
    float n6;} UDT;

    (d) #typedef union {
    int n7;
    float n8;} TUDAT;



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