# (Paper) : TCS Interview Sample Paper (Important)

**Paper
: ****TCS
Interview Sample Paper (Important)**

Their strategy is stress interview..

They delibrately humiliate you.. ask disintresting questions to put you
under pressure.. i am not exaggerating.. its true... please be prepared to
face questions from any subject that is there in your curriculm.. even
accounts and other subjects that are there in your curriculm.. specially
tcs people will ask you your area of intrest.. then they start asking
questions from subjects.. other than the one you mentioned as your area of
intrest.. their argument is that you should be able to answer anything from your
first year first sem to last year last sem..

Here is a list of computer science and hr related questions they ask frequently.. **
1. what is a cursor ****
2. types of cursors ****
3. normalization **

**4. normal forms**

**5. whis is the best normal form**

**6. what is an os**

**7. what exactly os consists of**

**8. what is the shell u worked on**

**9. commands in unix**

**10. what is xml and dhtml**

**11. Tell about ur self family background weakness and strengths**

**12. where do u stand in the class**

**13. sdlc**

**14. case tools**

**15. uml**

**16. importance of accounts in ur curriculm**

**17. balance sheet entries**

**18. shares is share an asset**

**19. function overloading**

**20. virtual functions**

**21.explain ip address**

**22.tools of a network**

**23. explain gateways, hubs and switches**

**24. what is os**

**25. what it does**

**26. what is dbms**

**27. similarity between dbms and os**

**28. differentiate between c nd c++**

**29. use of ::(scope resolution operator)**

**30. what kind of projects are suitable for c and c++**

**31. what is a class? example**

**32. what have u done to improve ur knowledge outside the curriculam**

**33. sdlc and stages**

**34. questions on projects u have done**

**35. what is testing**

**36. types of testing**

**37. funtional point model**

**38. difference between black box and white box**

**39. what is quality and various quality certifications**

**40. what is spiral lifecycle model**

**41. cohesion and coupling**

**42. virtual memory concept**

**43. what is a page fault**

**44. what is fragmentaion**

**45. kinds of os**

**46. cpu sheduling algorithims**

**47. multitasking vs multiprogramming**

**48. can we create a table in oracle which is not in first normal form**

**49. difference between dbms and rdbms**

**50. sql queries**

**51. why do we need testing**

**52. types of indexing**

__AGES__**1)Last year pandit was thrice his sister's age. Next year he is only twice her age. After 5 years what is pandit's age.**

a)2

b)12

c)11

d)14

ans:b

**
2) Jalia is twice older than qurban . If jalia was 4 years younger, qurban was 3
years older ther diff. between their ages is 12 years what is the sum of thier
ages **

a)67

b)57

c)36

d)none

ans: b

**
3) Fathers age is 5 times his son's age. 4 years back the father was 9 times
older than son.Find the fathers' present age. **

Ans. 40 years

**
4)Joe's father will be twice his age 6 years from now. His mother was twice his
age 2 years before. If Joe will be 24 two years from now, what is the difference
between his father's and mother's age? **
a) 4

b) 6

c) 8

d) 10

__ALLIGATION__**
1).In a mixture, R is 2 parts, S is 1 part. In aoder to make S to 25% of
the mixture, howmuch R is to be added? **

__AVERAGE __**
1) Gavaskar average in first 50 innings was 50 . after the 51st innings his
average was 51 how many runs he made in the 51st innings****
2) Hansie made the following amounts in seven games of cricket in India: Rs.10,
Rs.15, Rs.21, Rs.12, Rs.18, Rs.19 and Rs.17(all figures in crores of
course).Find his average earnings.**

Ans. Rs.16 crore

**
3)Average of 5 number is -10 sum of 3 numbers is 16,what is the average of other
two numbers? **

answer -33

**
4)THREE COMPANIES WORKING INDEPENDENTLY AND GET SAVINGS 10%, 20%, 25%. IF THE
COMPANIES WORK JUST OPPOSITE THEN WHAT WILL BE THE NET SAVING? ****
5)If A, B and C are the mechanisms used separately to reduce the wastage of fuel
by 30%, 20% and 10%. What will be the fuel economy if they were used
combined. **

Ans 20%

__
BOATS__

**1) If a man can swim downstream at 6kmph and upstream at 2kmph, his speed in still water is:**

a. 4kmph

b. 2kmph

c. 3kmph

d. 2.5kmph

__CAR__**
1)A car is filled with four and half gallons of oil for full round trip. Fuel is
taken 1/4 gallon more in going than coming. What is the fuel consumed in coming
up?**

Sol Before the trip, car is filled with = 4 ? gallon of oil

Let ?X? be the quantity of fuel consumed for the trip in one direction

The fuel consumed while going = X + ?

The fuel consumed while coming = X

Therefore, the fuel consumed for the trip = (X + ?) + X = 4 ?

? 2X + ? = 4 ? => 2X = 4 ? - ? => 2X = 4 ? => X= 2 gallons approx

__CHAIN RULE__**
1)A can copy 50 papers in 10 hours while both A & B can copy 70 papers in 10
hours. Then for how many hours required for B to copy 26 papers? **

13

__CHESS BOARD__**
1) in 8*8 chess board what is the total number of squares refer odel**

ans:204

__CODING__**
1)THERE IS A WORD 'PERLMENTASITION'.. IF 1ST AND 2ND ,3RD & 4TH WORDS ARE
CHANGED AND SO ON, THEN FIND THE 14TH LETTER FROM RIGHT AFTER CHANGE.****
2)If TAFJHH is coded as RBEKGI then RBDJK can be coded as --------- **

ans qcckj

**
3)a series of letters are given how many Ws r followed by F and preceded by T.
12.SURFW Code is translated as SHEET?..these kinda ques r there?..****
4)Code Interchanging, A word is given?. Letters are reversed..u r asked to
find the nth letter from right or left?.**

Eg.DESTABILIZATION

Ans-T

**
5) BFGE CODED AS CEHD THEN CODE PVHDJ**

ANS: QUICK

**
6) FIND THE NO. OF Y FOLLOWED BY W BUT THAT IS NOT FOLLOWED BY Z.**

Y W R U D D Y W Z ...............

**
7) If VXUPLVH is written as SURMISE, what is SHDVD ?**

Ans. PEASA (hint: in the first word, the alphabets of the jumbled one is three
alphabets after the corresponding alphabet in the word SURMISE. S = V-3,
similarly find the one for SHDVD)

**
8) If DDMUQZM is coded as CENTRAL then RBDJK can be coded as -----**

Ans. QCEIL (hint: Write both the jumbled and the coded word as a table, find the
relation between the corresponding words, i.e C= D-1, N=M+1 & so on

**
9) In the word ECONOMETRICS, if the first and second , third and forth,forth and
fifth, fifth and sixth words are interchanged up to the last letter, what would
be the tenth letter from right?**

Ans. word is CENOMOTEIRSC tenth word is R

**
10)If D_MUQZM is coded as CENTRAL then RBDJK can be coded as****
11)In a certain format TUBUJPO is coded as STATION. The code of which string is
FILTER?****
12) What is the code formed by reversing the First and second letters, the third
and fourth letters and son on of the string SIMULTANEOUSLY?****
13) In the word ORGANISATIONAL, if the first and second, third and forth, forth
and fifth, fifth and sixth words are interchanged up to the last letter, what
would be the tenth letter from right?**

ANS: I(ROANISATIONALG)

**COST**

**1)A power unit is there by the bank of the river of 750 meters width. A cable is made from power unit to power a plant opposite to that of the river and 1500mts away from the power unit. The cost of the cable below water is Rs. 15/- per meter and cost of cable on the bank is Rs.12/- per meter. Find the total of laying the cable.**

Ans 1000 (24725 - cost) 20250

Ans. Rs. 22,500 (hint: the plant is on the other side of the plant i.e. it is not on the same side as the river)

**
2) The cost of one pencil, two pens and four erasers is Rs.22 while the cost of
five pencils, four pens and two erasers is Rs.32.How much will three pencils,
three pens and three erasers cost?**

Ans. 27

**
3)2 oranges,3 bananas and 4 apples cost Rs.15 . 3 ornages 2 bananas 1 apple
costs Rs 10. what is the cost of 3 oranges, 3 bananas and 3 apples**

ANs Rs 15.

**
4) A shopkeeper bought a watch for Rs.400 and sold it for Rs.500.What is his
profit percentage?**

Ans. 25%

**
5) What percent of 60 is 12?**

Ans. 20%

**
6)Three men goes to a hotel to stay ,the clerk says $30 per room/day so all the
three plans to stay in one room so each pays $10.After some time the clerk
realises that he made a mistake of collecting $30 but the room cost only
$25,there fore he decides to return $5 to them so he calls the roomboy and gives
him $5 asking him to return.The roomboy keeps $2 with him and he returns only
$3($1 for each).Now Totally all have paid $9 each($27)+rommboy $2 which is equal
to $27.where did $1 go,who has made the mistake?**

**7) two pencils cost 8 cents. then 5 pencils cost?**

(20 cents)

**
8)A box of 150 packets consists of 1kg packets and 2kg packets. Total weight of
box is 264kg. How many 2kg packets are there**

a) 96

b)67

c)100

d)114

ans: d

**
9)Which is more economical of the following**

a)2kg -- 30/-

b)8kg -- 160/-

c)5kg -- 80/-

**
10)Satish earns 240 weekly.12% of big amount + earning weekly = 540 what is
the big amount**

a)3200

b)3600

c)2500

d)1000

ans: c

**
11) Bhanu spends 30% of his income on petrol on scooter. ? of the remaining on
house rent and the balance on food. If he spends Rs.300 on petrol then what is
the expenditure on house rent?**

a) Rs.525

b) Rs.1000

c) Rs.675

d) Rs.175

**
12) A sporting goods store ordered an equal number of white and yellow balls.
The tennis ball company delivered 45 extra white balls, making the ratio of
white balls to yellow balls 1/5 : 1/6. How many white tennis balls did the store
originally order for? **

a) 450

b) 270

c) 225

d)None of these

**
13) There is a circular pizza with negligible thickness that is cut into 'x'
pieces by 4 straight line cuts. What is the maximum and minimum value of 'x'
respectively? **

a) 12,6

b) 11,6

c) 12,5

d) 11,5

**
14) The total expense of a boarding house are partly fixed and partly variable
with the number of boarders. The charge is Rs.70 per head when there are 25
boarders and Rs.60 when there are 50 boarders. Find the charge per head when
there are 100 boarders. **

a) 65

b) 55

c) 50

d) 45

__COUNTERFEIT__**
1) In 80 coins one coin is counterfiet what is minimum number of weighings to
find out counterfiet coin **

__CUBE__**
1) Vertices edges and surfaces of a cube **

Ans-8,12,6

__CURVES__**
1)STUDY THE NATURE OF THE CURVES Y==LOGX, XY==C etc****
2)curve was given & in option equation was given , you have to mark the
correct equation (curve and equation was of general logx,ex ,sinx,cosx,tanx,x
curves) ****
3)values of x &f(x) was given (like x=1000&f(x)=3) and equations was
given****
4)WHICH SHAPE WILL BE OBTAINED BY USING THESE VALUES OF X,Y**

X
Y

0
0.00001

10
1.02

100 1.72

1000 3.00

9999 4.72