Company: HCL Technologies

Ordering is changed this time.So don’t byheart by
a,b,c,d. Byheart the
answers. Pls check answer once again
Don’t hesitate to answer all. Ever HR knows that
Students have
this qp.
Ist section of the Question is as such in the
Section II – C Programming
1. Which of the following about the following two
declaration is true
i ) int *F()
ii) int (*F)()
Choice :
a) Both are identical
b) The first is a correct declaration and the second
is wrong
c) The first declaraion is a function returning a
pointer to an
integer and the second is a pointer to function
returning int
d) Both are different ways of declarin pointer to a
Answer : c) The first de…
2. What are the values printed by the following
#define dprint(expr) printf(#expr “=%dn”,expr)
int x=7;
int y=3;
a) #2 = 2 b) expr=2 c) x/y=2 d) none
Answer: c)x/y=2
3. Which of the following is true of the following
char *c;
int *ip;
c =(char *)malloc(100);
ip=(int *)c;
ans: The code functions properly releasing all the
memory allocated
4.output of the following.
int i;
char *p;
p=(char *)i;
which of the following is not a ANSI C language
6. When an array is passed as parameter to a function,
which of
the following statement is correct
a) The function can change values in the original
b) In C parameters are passed by value. The funciton
cannot change
the original value in the array
c) It results in compilation error when the function
tries to access the elements in the array
d) Results in a run time error when the funtion tries
to access the elements in the array
Answer: a) The fu…
7. The type of the controlling expression of a switch
statement cannot be of the type
a) int b) char c) short d)float e) none
Answer : d)float
8.What is the value of the expression (3^6) + (a^a)?
a) 3 b) 5 c) 6 d) a+18 e) None
Answer : 5
9. What is the value assigned to the variable X if b
is 7 ?
X = b>8 ? b <<3 : b>4 ? b>>1:b;
a) 7 b) 28 c) 3 d) 14 e) None
ans: 3;
10. Which is the output produced by the following
int n=2;
printf(“%d %dn”, ++n, n*n);
a) 3,6 b) 3,4 c) 2,4 d) cannot determine
Answer : b) 3,4
11. What is th output of the following program?
int x= 0x65;
char x;
a) compilation error b) ‘A’ c) 65 d) unidentified
ans. d)
12. What is the output of the following program
int a=10;
int b=6;
printf(“%d %dn”,a,b++);
a) 10,6 b)10,7 c) 3,6 d) 3,7 e)
Answer : d) 3,7
13. What can be said of the following program?
enum Months {JAN =1,FEB,MAR,APR};
Months X = JAN;
printf(“Jan is the first month”);
a) Does not print anything
b) Prints : Jan is the first month
c) Generates compilation error
d) Results in runtime error
Answer: b) Prints : Jan..
14. What is the output of the following program?
char *src = “Hello World”;
char dst[100];
strcpy(char *dst,char *src)
while(*src) *dst++ = *src++;
a) “Hello World” b)”Hello” c)”World” d) NULL e)
Answer: d) NULL
15. What is the output of the following program?
int l=6;
{ default : l+=2;
case 4: l=4;
case 5: l++;
a)8 b)6 c)5 d)4 e)none
Answer : c)5
16. What is the output of the following program?
int x=20;
int y=10;
printf(“%d %d”,y,x+2);
swap(int x,int y)
int temp;
temp =x;
a)10,20 b) 20,12 c) 22,10 d)10,22
17. What is the output of the following problem ?
#define INC(X) X++
int X=4;
a)4 b)5 c)6 d)compilation error e) runtime
Answer : d) compilation error no ++++ operator allowed
18. what can be said of the following
struct Node {
char *word;
int count;
struct Node left;
struct Node right;
a) Incorrect definition
b) structures cannot refer to other structure
c) Structures can refer to themselves. Hence the
statement is OK
d) Structures can refer to maximum of one other
Answer :c)
19. What is the size of the following union.
Assume that the size of int =2, size of float =4 and
size of char =1.
Union Tag{
int a;
flaot b;
char c;
a)2 b)4 c)1 d) 7
ans : b.)
20) What is the output of the following program? (.
has been used to indicate a space)
char s[]=”Hello,.world”;
c)Hello,.Wor…. (this option is correct for
d)None of the above
ans: b.) total 15 spaces and print only 10
These questions are based on data sufficiency in which
one has to tell if the given data in 2 statements is
enough to derive an answer.
A if only (1) is sufficent.
B if only (2) is sufficient.
C if either is sufficient.
D if both are sufficient.
E data insufficient.
(1) The combined length of the longer two pieces of
rope is 12 metres.
(2) The combined length of the shorter two pieces
of rope is 11 metres.
(A) (B) (C) (D) (E)
10) A certain company paid bonuses of Rs. 125 to each
of its executive
emplyees and Rs 75 to each of its nonexecutive
employees. If 100
of the employees were nonexecutive, how many were
1) The company has a total of 120 employees
2) The total amount that the company paid in
bonuses to its employees was Rs.10,000
(A) (B) (C) (D) (E)
ans. C.)
11. What fraction of his salary did Mr. Johnson put
into savings last week ?
1) Last week Mr.Johnson put Rs 17 into savings.
2) Last week Mr.Johnson put 5% of his salary into
(A) (B) (C) (D) (E)
ans. B.) only 2nd.
12. Each M-type memory unit will increase the base
memory capacity
of a certain computer by 3 megabytes. What is the base
memory capacity,
in megabytes, of the computer ?
1) 2 M-type memory units will increase the computer’s
base memory capacity by 300%
2) The memory capacity of the computer after 2-M type
memory units
are added to the base memory capacity, is 1.6 times
the memory capacity
of the computer after 1 M-type unit is added to the
base memory capacity.
(A) (B) (C) (D) (E)
ans. C.) either.
13. What fractional part of the total surface area of
cube C is red?
1) Each of 3 faces of C is exactly 1/2 red
2) Each of 3 faces of C is entirely white
(A) (B) (C) (D) (E)
ans: D.) both.
14. How many of the integers between 25 and 45 are
even ?
(A)21 (B)20 (C)11 (D)10 (E)9
15. If taxi fares were Rs 1.00 for the first 1/5
mile and Rs 0.20
for each 1/5 miles thereafter. The taxi fare for a
3-mile ride was
(A)Rs 1.56 (B)Rs 2.40 (C)RS 3.00 (D)Rs 3.80
(E)Rs 4.20
Answer :d)Rs 3.80
16. A computer routine was developed to generate two
numbers (x,y)
the first being a random number between 0 and 100
inclusive, and
the second being less than or equal to the square root
of the first.
Each of the following pair satisfies the routine
(A) (99.10) (B) (85.9) (C) (50.7) (D) (1.1) (E)
Answer : A) (99.10)
17. A warehouse had a square floor with area 10,000
sq.meters. A
rectangular addition was built along one entire side
of the warehouse
that increased the floor by one-half as much as the
original floor.
How many meters did the addition extend beyond the
original buildings ?
(A)10 (B)20 (C)50 (D)200 (E)500
Answer: c)50
18. A digital wristwatch was set accurately at 8.30
a.m and then
lost 2 seconds every 5 minutes. What time was
indicated on the watch
at 6.30 p.m of the same day if the watch operated
continuously that time ?
(A)5:56 B)5:58 (C)6.00 (D)6.23 (E)6.26
Answer :E) 6.26
19) A 5 litre jug contains 4 litres of a salt water
solution that
is 15 percent salt. If 1.5 litres of the solution
spills out of
the jug, and the jug is then filled to capacity with
water, approximately
what percent of the resulting solution in the jug is
(A)7.5% (B)9.5% (C) 10.5% (D)12% (E)15%
Answer :A)7.5%
20) A plane travelled K miles in the first 96 miles of
flight time.
If it completed the remaining 300 miles of the trip in
1 minute,
what was its average speed in miles per hour for the
entire trip ?
Answer :(300+k)/97 * 60
21) A merchant sells an item at a 20 percent discount.
but still
makes a gross profit of 20 percent of the cost. What
percent of
cost would be gross profit on the item have been if it
had been sold without the discount?
(A)20% (B)40% (C)50% (D)60% (E)66.6%
Answer :c) 50%
22) A millionaire bought a job lot of hats 1/4 of
which were brown.
The millionaire sold 2/3 of the hats including 4/5 of
the brown
hats. What fraction of the unsold hats were brown.
(A)1/60 (B)1/15 (C)3/20 (D)3/5 (E)3/4
Answer :c)3/20
23) How many integers n greater than10 and less than
100 are there
such that, if the digits of n are reversed, the
resulting integer is n+9 ?
(A)5 (B)6 (C)7 (D)8 (E)9
Answer :D)8
24) An investor purchased a shares of stock at a
certain price.
If the stock increased in price Rs 0.25 per share and
the total
increase for the x shares was Rs 12.50, how many
shares of stock had been purchased ?
(A)25 (B)50 (C)75 (D)100 (E)125
Answer :B)50
25) At a special sale, 5 tickets can be purchased for
the price
of 3 tickets. If 5 tickets are purchased at the sale,
the amount
saved will be what percent of the original price of
the 5 tickets?
(A)20% (B)33.3% (C)40% (D)60% (E)66.6%
Answer :c)40%
26) Working independently, Tina can do a certain job
in 12 hours.
Working independently, Ann can do the same job in 9
hours. If
Tina works independently at the job for 8 hours and
then Ann works
independently, how many hours will it take Ann to
complete the remainder of the jobs?
(A)2/3 (B)3/4 (C)1 (D)2 (E)3
Answer :E)3
27) A decorator bought a bolt of d m number of red
chips in any one stack ?
(A)7 (B)6 (C)5 (D)4 (E)3
Answer :C) 5
1) Here is the structure declaration of a doubly
linked list
struct dlink {
int nodeid;
struct dlink *next;
struct dlink *prev;
} dlink_t;
A pointer of the head of the linked list is maintained
as a global variable, whose definition is
dlink_t *head;
The funtion remove_element(dlink_t *rp), needs to
remove the node
pointed to the rp and adjust the head.
The first node’s prev and the last node’s next are
remove_element(dlink_t *rp)
rp->prev->next = rp->next;
rp->next->prev = rp->prev;
if( head == rp)
head = rp->next;
Which of the following statement is true about the
fution remove_element
A) It work when head is the same as rp
B) It does not work when rp is the last element on the
c) It sets the head of the list correctly
D) It works in all cases
Answer :B) It does…
2) Consider the following function written in c:
#define NULL 0
char *index(sp,c)
register char *sp,c;
if(*sp == c)
return (sp);
} while (*sp++);
return NULL;
The first argument sp, is a pointer to a C string.
The second
argument, c, is a character. This function scarches
for the character
c, in the string. If it is found a pointer to that
location is returned
else NULL is returned.
This function works
a) Always
b) Always, but fails when the first byte contais the
character c
c) works when c is a non NULL character only
d) Works only when the character c is found in the
ans: a
03) What is printed when this program is executed
printf (“%dn”,f(7));
if (x<= 4) return x; return f(--x); } a) 4 b) 5 c) 6 d) 7 ans: a 04) On a machine where pointers are 4 bytes long, what happens when the following code is executed. main() { int x=0,*p=0; x++; p++; printf ("%d and %dn",x,p); } a) 1 and 1 is printed b) 1 and 4 is printed c) 4 and 4 is printed d) causes an exception ans: b.) 05) Which of the following is the correct code for strcpy, that is used to copy the contents from src to dest? a) strcpy (char *dst,char *src) { while (*src) *dst++ = *src++; } b) strcpy (char *dst,char *src) { while(*dst++ = *src++); } c) strcpy (char *dst,char *src) { while(*src) { *dst = *src; dst++; src++; } } d) strcpy(char *dst, char *src) { while(*++dst = *++src); } ans: b.) 6) Consider the following program main() { int i=20,*j=&i; f1(j); *j+=10; f2(j); printf("%d and %d",i,*j); } f1(k) int *k; { *k +=15; } f2(x) int *x; { int m=*x,*n=&m; *n += 10; } The values printed by the program will be a) 20 and 55 b) 20 and 45 c) 45 and 45 d) 45 and 55 e) 35 and 35 ans: c.) 45 and 45 7) what is printed when the following program is compiled and executed? int func (int x) { if (x<=0) return(1); return func(x -1) +x; } main() { printf("%dn",func(5)); } a) 12 b) 16 c) 15 d) 11 ans: b.) 16 08) COnsider the following of c code in two files which will be linked together and executed . a.c ___ int i; main() { i = 30; f1(); printf("%dn",i) } b.c ___ static int f1() { i+=10; } which of the following is true ? a) a.c will fail in compilation phase because f1() is not declared b) b.c will fail in compilation because the variable i is not declared c) will print 30 d) will print 40 e) a & b ans: e) a & b . extern functions and variables should have been declared in the files for external linkage. 9) Consider the following prg void funca (int *k) { *k += 20 } void funcb (int *x) { int m=*x,*n = &m; *n+=10; } main() { int var = 25,*varp=&var; funca(varp); *varp += 10; funcb(varp); printf ("%d and %dn",var,*varp); } The values printed when the above prg is complied and executed are: a) 20 and 55 b) 20 and 45 c) 45 and 55 d) 55 and 55 e) 35 and 35 ans: d.) 55 and 55. similar to program 6.) 10) consider the following program: # include
class x
int a;