Placement Papers - TCS

C and COBOL

this is the TCS C paper. it actually contains 50 questions.but i am sending only 43 questions.though 46 questions are available only these are visible.so it is i am sending 43 only.the set code 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.they are local
c.they are not initialised to zero
d.they are global.

6.Write one statement equalent 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.commentscan 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(u0;
}
What
a.15
b.0
c.16.1
d.29

10.which of the following represents true statement
either x is inthe range of 10 and 50 or y is zero
a.x>=10 && x<=50 || y==0;
b.
c.
d.

11.Which of the following is not an infinite loop ?
a.while(1){
..
}
b.for(;;){
..
}
c.x=0;
do{
/*x unaltered within theloop*/
..
}while(x==0);
d.# define TRUE 0
..
while(TRUE){
..
}

12.what does the following function print?
func(int i)
{
if(i%2)return 0;
eale 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 vlaue 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="Etrance"
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;
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)
elae 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 ",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 ");
a.10
b.2
c.5
d..

31.what is incorrect among teh following
A recursive functiion
a.calls itself
b.is equivalent to a loop
c.has a termination cond
d.does not have a return value at all

32.which of the following go out of the loopo 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
B
main()
OB  {unsigned int i=10;
while(i>=0){
printf("%u",i)
i--;
}
}
how many times the loop wxecuted
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 sigment
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

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

39.teh 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

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..

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;   

********************************************************************************      
Only These Are The Questions Avilable For C Paper.

********************************************************************************
ANSWERS:  
-----------

1-5  D,C,D,C,C

6-10  D,C,C,A,D

11-15 D,C,A,A,A

16-20 B,C,D,C,A

21-25 C,D,B,D,A

26-30 C,B,B,A,D

31-35 B,C,C,C,B

36-40 A,B,A,B,B

41-45 A,D,D,D,A

46-50 B,C,C,A,A 


This the COBOL paper.

01.consider the following piece of code
01 GROSS-PAY
05 BASIC-PAY PIC 9(5)
05 ALLOWENCES PIC 9(3)
if BASIC-PAY has a value 1000 and ALLOWENCES has a value of 250,what will be
displayed by the statement
DISPLAY GROSS-PAY
a.1250
b.01000250
c.01250
d.1.250

02.consider two data items
77 W-A PIC 9(3)V99  VALUE 23.75
77 W-B PIC ZZ9V99  VLAUE 123.45
after the statement
MOVE W-A TO W-B
what will be W-B\'s value?
a.123.75
b.b23.75 (where b indicates space)
c.023.75
d.invalid move

03.what is the result of the following?
DIVIDE A INTO B GIVING C.

a.C=A/B
b.the reminder of B/A is stored in C
c.C=B/A
d.the reminder of A/B is stored in C

04.consider the statement (incomplete)
IF(A NUMERIC)
DISPLAY A
the variable A can be
a.NUMERIC
b.ALPHABETIC
c.ALPHANUMERIC
d.NUMERIC OR ALPHANUMERIC

05.which of the following can be used as a check protection symbol
a.Z
b.S
c.*
d.+

06.what if any ,is the syntex error in the following piece of code
01 B  PIC A(7)
02 C  PIC 9(4)
.. .. ..
IF(B NUMERIC)
ADD 10 TO C
a.the condition in the if statement is wrong
b.noting is wrong
c.because C is initialised.ADD 10 TO C is wrong
d.both B and C shoud have same size.

07.study the following code
01 A1
05 B  PIC 99
05 C  PIC X(4)
01 A2
05 B  PIC 99V99
05 C  PIC A(4)
pick out the valid statement from the following
a.A1 and A2 can not have sub-ordinates
b.A1 and A2 can have the same sub-ordinates but must have same PIC clause
c.there is nothing wrong
d.A1 and A2 can have same sub-ordinates provided they are not at 01 level

08.study the following
01 A  PIC 99V0 VALUE 5
01 B  PIC 9V9 VALUE 6
01 C  PIC 99V9 VALUE 2.5
01 D  PIC 99  VALUE 3
COMPUTE A ROUNDED B C = A+B*C/D
ON SIZE ERROR PERFORM PRINT-ERROR
the comments of A.B.C after execution of the above statement are
a.A=10 B=0  C=10
b.A=10 B=9.9 C=9.9
c.A=10 B=0  C=9.9
d.A=10 B=6  C=10

09.how many times PARA-A is performed :
PERFORM PARA-A VARYING TIMES-COUNTER FROM 1 BY 1
UNTIL TIMES-COUNTER >0
PARA-A
MOVE P TO Q
MOVE H TO TIMES COUNTER
a.10
b.1
c.11
d.0

10.consider the following piece of code
01 GROUP-ITEM
05 AMOUNT-1  PIC 99V9   USAGE COMP VALUE 50
05 AMOUNT-2  PIC 9(4)V99 USAGE COMP
MOVE ZERO TO GROUP-ITEM
ADD 50 TO AMOUNT-1
what will be the content of AMOUNT-1?
a.50
b.100
c.0
d.unpredictable

11.consider the following progrm statements
MOVE 0 TO SW.NO.OF.REC
PERFORM PRI-OUT UNTIL SW=1
DISPALY NO.OF.REC
STOP RUN
PRE-OUT
READ IN-FILE AT END
MOVE 1 TO SW
WRITE OUO-REC FROM IN-REC
ADD 1 TO NO.OF REC
if the IN-FILE contains 1000 records what value will be displayedafter the
PERFORM is over?assume that N0.OF.REC has PIC 9(4)
a.1000
b.1001
c.1
d.none of the above since there is a syntex error

12.study the data discriptions and answer the questions given below
i)01 ORDER RECORD
05 OUT-HEADER PIC X(50)
05 ITEM-COUNT PIC 99
05 OUT-ITEM  PIC X(20) OCCURS 1 TO 20 DEPENDING ON ITEM-COUNT
ii)01 NAME-AND-ADDRESS
05 N-AND-A-LINE OCCURES 5
05 LINE-LENGTH PIC P9
05 N-AND-A-CHAR PIC X OCCURS 1 TO 20 DEPENDING ON LINE-LENGTH
iii)01 SALES-LIST
05 SALESMAN-COUNT PIC 99
05 SALES      PIC 9(6) OCCURS 1 TO 100 DEPENDING ON
SALESMAN-COUNT
iv)01 ORDER-RECORD
05 NO-OF-BRANDS  PIC 99
05 BRAND-PURCHASED OCCURS 1 TO 15 DEPENDING ON NO-OF-BRANDS
which of the following is true?
a.i) and iii) are valid
b.i) and iv) are valid
c.i) and iii) are not valid
d.all are valid

13.C1 C2 C3 are three conditions whose TRUTH values are as folloes.
C1-TRUE  C2-FALSE  C3-TRUE
A,B,C are defined as given below
A:C1 AND(NOT C2) OR C3
B.(NOT C1) OR (NOT C2 AND NOT C3)
C.(C1 OR C2)AND C3
D.C1 AND C2 OR C3
given the above information which of the following statements are valid?
a.only A,B and C are TRUE
b.only A,C and D are TRUE
c.A,B,C and D are TRUE
d.only C and D are TRUE

14.consider the following
FD FILE-1
01 REC-1  PIC X(80)
.. .. ..
WORKING-STORAGE SECTION
01 W-REC  PIC X(90)
.. .. ..
PROCEDURE DIVISION
FIRST-PARA
.. .. ...
READ FILE-1 INTO W-REC AT END MOVE 1 TO EOF-FLAG
which of the following is true with respect to the above?
a.REC-1 will contain nothing and W-REC will contain the contains of the
record read
b.REC-1 and W-REC contain the same data
c.syntex is invalid and error will occur
d.REC-1 and W-REC must be of same size

15.PERFORM ACCUMULATE-TOTALS
VARYING A FROM 1 BY 2 UNTIL A >2
AFTER B FROM1 BY 1 UNTIL B>2
AFTER C FROM 2 BY -1 UNTIL C<2
the paragraph ACCUMULATE-TOTALS would be exicuted
a.18 times
b.4 times
c.8 times
d.24 times

16.there is a file whose ORGANISATION is INDEXED.you want to read the records
from the file in RANDOM fashion as well as sequentially.then which of the
access mode would you specify?
a.SEQUENTIAL
b.RANDOM
c.DYNAMIC
D.ACCESS MODE has nothing to do with it

17.consider the following PROCEDURE DIVISION entry
OPEN EXTEND IN-FILE
identify the correct statement
a.organization of IN-FILE is sequential and records can be added in the
beginning
b.organization of IN-FILE is sequential and records can be added in the
end
c.organization of IN-FILE is indexed and records can be added in the
beginning
d.organization of IN-FILE is indexed and records can be added in the end

18.what is the size of W-REC in the following
01 W-REC
05 A    PIC 9(4)V99
05 B READLINES A
10 C PIC XX
10 D PIC S9(4)
05 E OCCURS 7  PIC ZZ.ZZ
05 F OCCURS 5
10 G PIC ZZ.ZZZ99
10 H OCCURS 3
15 J PIC 9(3)
15 K PIC V99
a.177
b.161
c.180
d.none of yhe above

19.consider the following two IF statements:
IF X AND NOT Y MOVE A TO B
IF Z=1 OR 9 MOVE A TO B
select one of the following data divusion entries which gives identical
results for both the above IF statements
a.01 Z  PIC 9
  88 X VALUE 1.9
  88 Y VALU