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Home » Placement Papers » Lucent Technologies Placement Papers »Lucent Technologies  Placement Paper 2

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Lucent Technologies Placement Paper 2



Following are the some sample questions: 


1.6*12*15 is the volume of some material.How many cubes can be inserted 
into that? Ans.40 
2.Two pipes can fill a tank in 10 1nd 12 hours while third pipe will 
make the tank empty in 20 hours.If all three pipes operate simultaneously, 
in how many hours the tank will be filled ? Ans.7hours 30 minutes. 
3.Diameter of a beaker is 7cm. Mambler(some instrument) dia is 1.4cm. 
How many mamblers has to be put to increase the water level by 5.6cm. 
4.Cost of an item is x. It's value increases by p% and decreases by p% 
Now the new value is 1 rupee, what is the actual value. 
5.A right circular cylinder and a cone are there.Base radius of cone is 
equal to radius of cylinder.What is the ratio of height to slant side. 
6.Distance between two poles is 50 meters.A train goes by 48 kmph in one 
minute.How many poles will be crossed by the train. 
7.A pole seen from a certain distance at an angle of 15 degrees and 
100 meters ahead by 30 degrees. What is th height of pole. 
8.15 people--each has to pay Rs.20.. 
20 people--each has to pay Rs.18.. 
for 40 people--how much has to pay ? 
9.if p=2q then q=r*r, 
if p-odd then q is even, 
whether we decide r is even or odd ? 
choices:a)first condition is sufficient 
b)second condition is sufficient 
c)both are sufficient 
d)both are not sufficient 
10.What is the value of m given that 
i) m is devided by 2 
ii) m is devided by 5 
Ans: none of these 
11.If he sells 40 magoes, he will get the selling price of 4 mangoes 
extra, What is his % increse in profit ? Ans: 25% 
12.100 glasses are there. A servant has to supply glasses to a person 
If he supplies the glasses without any damage he will get 3 paise 
otherwise he will loose 3 paise.At the end of supplying 100 glasses 
if he gets 270 paise, how many glasses were supplied safely.Ans: 95 

*** Some questions on reasoning 


1.Fastest logic ..Ans: ECL type of IP address belong to which class. Ans:class B 

3.Mod K ring counter requres how many number of flipflops.Ans:K 

4.ftp is in application layer. 

5.Problem related to Ternary operations. Ans:3 

6.Problem related to macro # define square x x*x. Ans:11 

7.Problem related to 5 pointers..refer Page.123 of C prog.,by Keringan 
and Ritchie. 

8.Ideal op-amp CMRR. Ans: infinity. 

9.13-bit DAC MSB resistance 2kohms. 
LSB resistance ? 
Ans: 2k * 2 to the power of 12. 

*** Few question related to C++ 



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 

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 

5) c 20 

6) a 120 

7) b synchronise the access 

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 


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 
printf(%d",x) ? 

4) if(x>2)?3:4 



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


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 

7) --- 

8) ans:d 4 

9) ans: c 5 

10)ans: c semicolon missing 


following are not in order: 

2. M > D > Y ans: (a) 

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

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

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) 
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 

(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 ---------------

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