Hcl paper

[aayush_005]

Paper Model:
Section I: computer awareness(i.e general things about computer) Q.15
-ve marks: 1/4

Section II: Simple C- language Q. 15 & -ve marks: -1/4

Section III: On pointers & structures
and C++,JAVA( only 1 on this) Q.10 each quetion ->2 marks
-ve marks: -1
Section IV: Analytical Q.20 each quetion -> 2 marks.
-ve marks: -1/4


Murthy from each section I am giving one are to quetions also because for
checking whether the same paper or not.
And for doubtful answers also I am writing quetions but not writing answers
for these quetions.


Section-I

1). Piggy backing is a technique for

a) Flow control b) sequence c) Acknowledgement d) retransmition

ans: c piggy backing


2). The layer in the OST model handles terminal emulation

a) session b) application c) presentation d) transport

ans: b application

3) ans: a odd numbers of errors

4)Q. In signed magnitude notation what is the minimum value that can be represented with 8 bits

a) -128 b) -255 c) -127 d) 0

5) c 20

6) a 120

7) b synchronise the access

8) a system call

9) b the operating system

10) a 177333

11) d used as a network layer protocall in network and windows system

12) b has to be unique in the sub network

13)Q. there is an employer table with key feilds as employer no. data in every
n'th row are needed for a simple following queries will get required results.

a) select A employe no. from employe A , where exists from employe B
where A employe no. >= B employe having (count(*) mod n)=0
b) select employe no. from employe A, employe B where
A employe no. >= B employ no. grouply employe no. having (count(*) mod n=0 )
c) both a& b
d)none of the above

14)Q. type duplicates of a row in a table customer with non uniform key feild
customer no. you can see

a) delete from costomer where customer no. exists
( select distinct customer no. from customer having count )
b) delete customer a where customer no. in
(select customer b where custermer no. equal to b custemor no. ) and a rowid >
b rowid
c) delete customer a where custermor no. in
( select customer no. from customer a, customer b )
d) none of the above

15) c Volatile modifier


---------- Section I over with 15 quetions -------------------



SECTION-II

Section II is not covered completly But it is very very easy. You can do it
very easely.


1) ans: recursion

2) long int size
a) 4 bytes b) 2 bytes c) compiler dependent d) 8 bytes
ans: compiler dependent
note: order of a,b,c,d are doubt but answer is correct.

3) x=2,y=6,z=6
x=y==z;
printf(%d",x) ?

4) if(x>2)?3:4

5)

6)

7) ans: c 6 ( quetion on enum )

8) ----
---
---
--
14) c : class A,B and C can have member functions with same name.

15) ans: d none of the above








SECTION-III


1) ans: b It does not work when rp is the last element in the linked list

2) ans: a always

3) ans: b 13

4) ans: b 16

5) ans: d 55,55

6) ans: c 5,10,10,3

7) ---

8) ans:d 4

9) ans: c 5

10)ans: c semicolon missing



SECTION-IV




following are not in order:

2. M > D > Y ans: (a)

6. 10 in 4 seconds,
? in 6 minutes = 10x6x60/4 = 900 ans: (a)

7. a=2, b=4, c=5
(a+b)/c - c/(a+b) = 11/30 (ans).

8. 100(100000000+100000000)/10000 = 2x1000000 (ans).

9. what does the hexanumber E78 in radix 7.
(a) 12455 (b) 14153 (c) 14256 (d) 13541 (e) 131112 ans: (d)

10. Q is not equal to zero and k = (Q x n - s)/2 find n?
(a) (2 x k + s)/Q (b) (2 x s x k)/Q (c) (2 x k - s)/Q
(d) (2 x k + s x Q)/Q (e) (k + s)/Q




(from GRE book page no:411)
data:
A causes B or C, but not both
F occurs only if B occurs
D occurs if B or C occurs
E occurs only if C occurs
J occurs only if E or F occurs
D causes G,H or both
H occurs if E occurs
G occurs if F occurs

NOTE: check following answers.

11. If A occurs which of the following must occurs

I. F & G
II. E and H
III. D

(a) I only (b) II only (c) III only (d) I,II, & III
(e) I & II (or) II & III but not both ans: (e)

12. If B occurs which must occur

(a) D (b) D and G (c) G and H (d) F and G (e) J ans: (a)

13. If J occurs which must have occured

(a) E (b) either B or C (c) both E & F (d) B (e) both B & C ans: (b)

14. which may occurs as a result of cause not mentioned

(1) D (2) A (3) F

(a) 1 only (b) 2 only (c) 1 & 2 (d) 2 & 3 (e) 1,2,3 ans: (c)

15. E occurs which one cannot occurs

(a) A (b) F (c) D (d) C (e) J ans: (b)

11 to 15:- ----------- e , a , b , c , b ---------------






Below are in order:

16. to 20. answers:

e
a
c
a
e