Cognizant Technologies Placement Question Papers

Cognizant Technologies Placement Question Papers

1. A starts from a place at 11.00 A.M. and travels at a speed of 4 kmph, B starts at 1.00 P.M. and travels with speeds of 1 kmph for 1 hour, 2 kmph for the next 1 hour, 3 kmph for the next 1 hour and so on. At what time will B catch up with A

a) 9.24 b) 9.32 c) 9.48 d) none

2. The average temperature of Monday to Wednesday was 37C and of Tuesday to Thursday was 34C. If the temperature on Thursday was 4/5 th of that of Monday, the temperature on Thursday was

a) 36.5C b) 36C c) 35.5C d) 34C

3. Swetha and Chaitanya went to a bookshop. Swetha purchased 5 pens, 3 note books and 9 pencils and used up all her money. Chaitanya purchased 6 pens, 6 note books and 18 pencils and paid 50% more than what Swetha paid. What % of Swethas money was spent on pens

a) 12.5 b} 62.5 c) 75 d) can’t be determined.

Directions for Questions 4, 5, 6. Alex, Bond, Calvin and Dorna collected coins of different
countries.
a. They collected 100 altogether b. None collected less than 10
c. Each collected an even no. d. Each collected a different no

4. Based on the above, we can say that the no. of coins collected by the boy who collected the most could not have exceeded
a) 54 b) 64 c) 58 d) 60

5. If Alex collected 54 coins, we can say (on the basis of information obtained so far) that difference in nos. collected by the boy who collected the most and the boy who collected the 2nd most should be at least
a) 30 b) 24 c) 26 d) 12

6. Alex collected 54 coins. If Calvin collected 2 more than double the no. collected by Dorna, the no. collected by Calvin was

a) 10% b) 30% c) 22% d) 26 %

7. How many nos. are there between 100 and 200 both inclusive and divisible by 2 or 3?

a) 67 b) 68 c) 84 d) 100

8. Find the greatest no. that will divide 964, 1238 and 1400 leaving remainder of 41, 31 and 51 resp.

a) 58 b) 64 c) 69 d) 71

9. If all 6’s get inverted and become 9’s, by how much will the sum of all nos. between 1 and 100 both inclusive change?
a) 300 b) 330 c) 333 d) none of these

10. If all the picture cards are removed from a pack of cards, the sum of the values of the remaining is

a) 55 b) 220 c) 54 d) 216

11. What is the min. no. of weighing operations required to measure 31 kg of rice if only one stone of 1 kg is available?
a) 31 b) 6 c) 5 d) 16

12. The ratio of the no. of white balls in a bag to that of black balls is 1:2. If 9 grey balls are added the ratio of nos. of white, black and grey become 2:4:3. How many black balls were in the bag?

a) 6 b) 9 c) 12 d) 8

13. There are 2 toy cars facing each other at a distance of 500 cm from each other. Each car moves forward by 100 cm at a speed of 50 cm/s and then moves backward by 50 cm at a speed of 25 cm/s. How long will it take for the cars to collide?

a) 12s b) 14s c) 16s d) 13s

14. It takes 8, 12 and 16 days for A, B and C resp. to complete a task. How many days will it take if A works on the job for 2 days then B works on it until 25% of the job is left for C to do, and C completes the work?

a) 10 days b) 14 days c) 13 days d) 12 days

15. A and B run in opposite directions from a pt. P on a circle with different but constant speeds. A runs in clockwise direction. They meet for the first time at a distance of 900 m in clockwise direction from P and for the second time at a distance of 800 m in anticlockwise direction from P. If B is yet to complete one round, the circumference of the circle is

a) 1700m b) 1250m c) 1300m d) 1200m

16. Bird A starts flying from P to Q at 9.00 A.M. and bird B starts flying from Q to P at 10.00 A.M. B is 50% faster than A. What is the time at which they meet if P and Q are 300kms apart and A’s speed is 50kmph.

a) 12 noon b) 12.30pm c) 11.30am d) 11.00am

17. There are 6 cities, of which each is connected to every other city. How many different routes can one trace from A to B, such that no city is touched more than once in any one route

a) 48 b) 60 c) 65 d) 72

18. In a group of 80 coins, exactly one is counterfeit and weighs less than the others. U are provided a scale to weigh to coins. The min. no. of weightings req. to determine the counterfeit coin is

a) 4 b) 1 c) 5 d) none of these

Directions for questions 19 to 23 Mark a if the ans. Can be obtained using 1 and 2 independently Mark b if the ans. Can be obtained by using only one of the two statements. Mark c if the ans. Can be obtained by using both statements 1 and 2 but not either of them alone. Mark d if the ans. cannot be obtained by using 1 and 2

19. What is the selling price of product X

1. Profit as a % sales is 10%, cost price is Rs.27

2. Profit as % sales is 20%, cost price is Rs.20

20. Find the perimeter of the rear wheel of a cart?

1. When the cart moves 5m, the rear wheel moves R rotations less than the front wheel

2 .The radius of the rear wheel is 3 times that of front wheel.

21. Is a-b+c>a+b-c. a, b,c are integers.
1. b is negative
2. c is positive

22. What is the distance from mumbai to Nagpur?
1. Driving at 90kmph I reach nagpur I hr earlier than if I were to drive at 80kmph.
2. Driving at 100kmph I covered 40% of the distance in 7 hrs.

23. What is the age of father and the son?
1. The ratio of their ages is 5:3 now and will be 3:2 in 10 years.
2. The sum of their ages now is 80, and 5 years ago the ratio was 9:5.

24. A cube of 12cm sides is painted red on each side. It is cut into cubes of 3cm side each. How
many of the smaller cubes do not have any side painted red?
a) 8 b) 12 c) 16 d) 0

25. Who was wearing the red sari?

a) Ms.Andhra Pradesh b) Ms.West Bengal
c) Ms.Uttar Pradesh d) cannot be determined

26. Between which two was Ms.West Bengal sitting?

a) Ms.Andhra and Ms.Uttar
b) Ms.Andhra and Ms.Maharashtra
c) Ms.Uttar and Ms.Maharashtra
d) Cannot be determined

27. What was the color of the sari that Ms.Uttar Pradesh was wearing?
a) White b) Green c) Red d) Yellow

28. What was the color if the sari that Ms.Andhra was wearing?
a) White b) Yellow c) Red d) Indeterminate

29. Who started with the lowest amount of money?
a) Shweta b) Tina c) Uma d) Vidya

30. Who started with the highest amount of money?

a) Shweta b) Tina c) Uma d) Vidya

31. How much did Uma have at the end of the second game?

a) Rs.32 b) Rs.72 c) Rs.8 d) Rs.36

32. What % of the people watches all three channels?
a) 0 b) 5 c) 10 d) 20

33. If another survey indicates that 20% of the people watch Abel and Bingo, and
16% watch Lucky and Bingo, then what % of the people watch only Lucky?
a) 0 b) 5 c) 10 d) 20

34. If space 4 is to remain empty which of the following is true?

a) Space no. 10 must be empty.
b) The groups of paintings must be hung in chronological order by century.
c) An 18th century painting must be hung in space 3.
d) A 19th century painting must be hung in space 1.

35. If the paintings are hung in reverse chronological order by century, the unused
wall spaces could be
a) 1, 5 and 10 b) 1, 6 and 10
c) 4, 7 and 8 d) 5, 8 and 12

36. Which of the following is a space that cannot be occupied by a 19th century Painting?
a) Space 1 b) Space 6 c) Space 8 d) Space 11

37. If J hangs in Space 11, which of the following is a possible arrangement for
spaces 8 and 9?
a) F in 8 and M in 9 b) K in 8 and G in 9
c) N in 8 and G in 9 d) 8 is unused and H in 9

38. If the 20th century paintings are hung in spaces 1-4 which of the following cannot true?
a) Space 8 is unused b) Space 9 is unused
c) F is hung in space 6 d) N is hung in space 9

39. If the first paintings in numerical order of spaces are F, O, M, N, G which of the Following must be
true?
a) Either space 1 or space 4 is unused
b) Either space 7 or space 12 is unused
c) H hangs in space 11
d) Two unused spaces separate the 18th and 19th century paintings

40. You have reached Utopia where you find two kinds of precious stones, rubies and emeralds. The
worth of a ruby and that of an emerald is Rs.4 lakhs and Rs.5 lakhs respectively while their
weights are 0.3 kg and 0.4 kg respectively. You have a bag that can carry maximum of 12 kgs.
How many rubies and emeralds would you carry such that their total value is maximized?
a) 20 rubies and 15 emeralds b) 8 rubies and 24 emeralds
c) 0 rubies and 30 emeralds d) none of the above

Cognizant Technologies Placement Question Papers

1. Basic datatypes,how many bytes for each datatype

2. bytes for various datatypes in Ansi C,boroland C.

3. Diff between Calloc and malloc.

4. diff between structures and union.

5. call by value,call by reference

6. Gave some code snippets in pointers and asked outputs.

7. gave one code snippet and asked to optimize it.

C++

1. OOPS concepts

2. Inheritence concepts.

3. Access specifiers particularly about Protected access specifier

4. friend functions.

5. about constructors

6. virtual constructor.

7. can we have more than one constructor.

8. how can we call diff constructors.

9. About destructors

10. memory leaking.

OS

11. what is OS?

12. memory mangement concepts.

13. Virtual memory concpets.

14. in virtual memory paging concepts.

15. Mutual exclusion concept.

16. Semaphore concepts

Data structures

17. What is linear & non-linear data structures.

18. Asked about linked list basics(no programs)

19. About stacks and queues.

20. various sorting algorithms

21. asked to explain quick sort with an example.

22. asked to explain binary search algorithm with example.

Software engineering

23. various process models.

24. asked to explain the waterflow model

25. various testing methods.

Computer networks

26. OSI layer.

27. Asked about presentation layer

28. various topologies.

29. asked to explain about the ring topology

30. asked about the hardware address.

31. ARP

DBMS

32. difference b/w DBMS and RDBMS

33. asked about the keys

34. particular about the foreign key.

35. asked an example for Where and having clause query.

HR

36. tell about CTS

37. I am ME graduate.so why you studied ME

38. are you ready to work in mainframe

39. Are you willing to relaocate.

Cognizant Technologies Placement Question Papers

1. What is the co-efficient of the term independent of x in the series [ (1/2)(1/x)^1/3 +(1/x)^(-1/5)]^8. where ^ denotes “to the power of".

2. In an examination a student must answer 65% of the questions correctly. But it was found that after answer 7 questions corretly out of the first 14, the student qualified. What is the min no. of questions in the paper. (a) 22 (b) 18 © 20 (d) Can’t say

3. There r two jars. In the first jar there is 25%Milk and in the second jar there is 50% milk. What ratio of milk should be added to get 12 lit of milk from the two jars such that we get 62.5% Milk in the whole mixture. [Ans: 6lit : 6lit]

4. There r 8 envelops and 8 letters. What is the probability that the all the letters will be inserted in the correct envelop.

5. There r two bridges at a distance of 1Km. A person starts rowing upstream from 1st bridge and when he reaches the second bridge he losses his cap. After 15mins he realises it and turns bach and rows downstream and catches his hat at the bottom of 1st bridge. Find : The speed of boat in still water

6. Same problem but find the speed of the river

7. There are 1000 doors that are of the open-close type. When a person opens the door he closes it and then opens the other. When the first person goes he opens-closes the doors ion the multiples of 1 i.e., he opens and closes all the doors. when the second goes he opens and closes the doors 2, 4 6 8 respectively. Similarly when the third one goes he does this for 3 6 9 1 2 15th doors resly. Find number of doors that are open at last. [Ans: 31]

8. 40 people can do a work in 60 days. After every 10 days 5 persons keeps leaving the job. In how many days will the job be completed.

9. A square field is there of dim : 40 X 60 m. A 1 m path is surrounded on the field outside it. What is the area of the path.

10. x=2 + 2^(1/3) + 2^(2/3). Find the value of x^3 -6x^2 - 8x. Something like this we have to find the answer was 8.

11. There was a puzzle on 5 traders in the name Steel,wood,Timber….and they produce Steel, wood, timber …and supply them to others but not to the manufacturer of it. For eg: Steel supplies Wood’s Product to the reciver of Timber. this was a comfusing puzzle. About 4 questions were from this part

12. A person starts from A to B. After 1hr his tyre gets punctured and he repairs it for 10 mins and travels the rest of the distant with 30km/hr and arrives 30 min late. had the puncture occured 30 Kms earlier he wud been only 15 mins late. Find the ditance betn. A & B and his intila speed.

13. What is the co-efficient of the term independent of x in the series [ (1/2)(1/x)^1/3 +(1/x)^(-1/5)]^8. where ^ denotes “to the power of".

14. In an examination a student must answer 65% of the questions correctly. But it was found that after answer 7 questions corretly out of the first 14, the student qualified. What is the min no. of questions in the paper.
(a) 22 (b) 18 © 20 (d) Can’t say

15. There r two jars. In the first jar there is 25%Milk and in the second jar there is 50% milk. What ratio of milk should be added to get 12 lit of milk from the two jars such that we get 62.5% Milk in the whole
mixture. [Ans: 6lit : 6lit]

16. There r 8 envelops and 8 letters. What is the probability that the all the letters will be inserted in the correct envelop.

17. There r two bridges at a distance of 1Km. A person starts rowing upstream from 1st bridge and when he reaches the second bridge he losses his cap. After 15mins he realises it and turns bach and rows downstream and catches his hat at the bottom of 1st bridge. Find : The speed of boat in still water

18. There are 1000 doors that are of the open-close type. When a person opens the door he closes it and then opens the other. When the first person goes he opens-closes the doors ion the multiples of 1 i.e., he opens and closes all the doors. when the second goes he opens and closes the doors 2, 4 6 8 respectively. Similarly when the third one goes he does this

Cognizant Technologies Placement Question Papers

1. Using the digits 1,5,2,8 four digit numbers are formed and the sum of all possible such numbers. 106656

2. Four persons can cross a bridge in 3, 7, 13, 17 minutes. Only two can cross at a time. Find the minimum time taken by the four to cross the bridge. 20

3. Find the product of the prime numbers between 1-20
Ans:9699690

4. 2, 3, 6, 7— using these numbers form the possible four digit numbers that are divisible by 4.
ans—-8

5. Two trains are traveling at 18kmph and are 60 km apart. There is flying in the train. It flies at 80kmph. It flies and hits the second train and then it starts to oscillate between the two trains. At one instance when the two trains collide it dies. At what distance travel by the fly.
Ans—12km

6. There are 1000 doors that are of the open-close type. When a person opens the door he closes it and then opens the other. When the first person goes he opens-closes the doors ion the multiples of 1 i.e., he opens and closes all the doors .when the second goes he opens and closes the doors 2, 4 6 8 resly. Similarly when the third one goes he does this for 3 6 9 12 15th doors resly. Find number of doors that are open at last.666

7. There are 9 balls of these one is defective. Find the minimum no. of chances of finding the defective one.2

8. There are coins of Rs.5, 2, 1,50p, 25p, 10p, 5p. each one has got a weight. Rs 5 coin weighs 20gms.find the minimum number of coins to get a total of 196.5gms.

9. A can do a work in 8 days, B can do a work in 7 days, C can do a work in 6 days. A works on the first day, B works on the second day and C on the third day resly.that is they work on alternate days. When will they finish the work.(which day will they finish the work) (7+7/168)->>8

10. A batsman scores 23 runs and increases his average from 15 to 16. Find the runs to be made if he wants top Inc the average to 18 in the same match. 39

11. A man sells apples. First he gives half of the total apples what he has and a half apple. Then he gives half of the remaining and a half apple. He gives it in the same manner. After 7 times all are over. How many apples did he initially have?
Ans:127

12. In a club there are male and female members. If 15 female quit then the number of males will become double the number of males. If 45 males quit no. of female becomes five times the number of males. Find the number of females.
Ans: 160/3, 83/3

13. When I was married 10 years back my wife was the sixth member of my family. Now I have a baby. Today my father was dead and I had a new baby. Now the average age of my family is the same as that when I was married. Find the age of my father when he was. 60

14. I and two of my friends were playing a game. For each win I get Rs 3. Totally I had three wins. Player 2 got Rs9 and player 3 got Rs 12. How many games had been played? 10

15. A person gives a secret to two other persons in 5 minutes. How long will he take to tell the secret to 768 people?

16. There are 40 seats in a bus. People agree to share the money for the number of seats. The total money comes to 70.37. How many seats were free?
Ans: 31

17. I had Rs100 and I play. If I win I will hav Rs110 and if I lose I will have Rs90. at the end I have 2 wins and 2 lose. How much do I have?
Ans: Rs. 100

18. There were sums related to diagrams. They asked to calculate the areas of the circle, rectangle that were enclosed in other objects. They were simple. There were many questions on logical reasoning.

19 A says ” the horse is not black".
B says ” the horse is either brown or grey.”
C says ” the hoese is brown”
At least one is telling truth and atleast one is lying. tell the colour of horse?

Answer : grey

20. A son and father goes for boating in river upstream . After rowing for mile son notices the hat
of his fathefalling in the river.After 5 min. he tells his father that his hat has fallen. So they
turn round and are able topick the hat at the point from where they began boating after 5min.
Tell the speed of river?
Ans…6 miles/hr

21. A+B+C+D=D+E+F+G=G+H+I=17 where each letter represent a number from 1 to 9. Find
out what does letter D and G represent if letter A=4. (8 marks)
Ans. D=5 G=1

22. Argentina had football team of 22 player of which captain is from Brazilian team and goalki from
European team. For remainig palayer they have picked 6 from argentinan and 14 from european.
Now for a team of 11 they must have goalki and captain so out of 9 now they plan to select 3
from rgentinian and 6 from European. Find out no of methods avilable for it. (2 marks)
Ans : 160600 ( check out for right no. 6C3 * 14C6)

23 Three thives were caught stealing sheep, mule and camel.

A says ” B had stolen sheep “
C says ” B had stolen mule”
B says he had stolen nothing.
The one who had stolen horse is speaking truth. the one who had stolen camel is lying . Tell who
had stolen what?
Ans. A- camel ;B- mule ;C- horse

24 A group of friends goes for dinner and gets bill of Rs 2400 . Two of them says that they have
forgotten their purse so remaining make an extra contribution of Rs 100 to pay up the bill. Tell the
no. of person in that group.
Ans - 8 person

25 In acolony there are some families. Each of them have children but different in numbers.Following
are conditions:
A) No of adult no of sons no of daughters no of families.
B) Each sister must have atleast one brother and should have at the most 1 sister.
C) No of children in one family exceeds the sum of no of children in the rest families.
D) Tell the no of families.(5 marks)
Ans : 3 families

26 There are 6 people W,H,M,C,G,F who are murderer , victim , judge , police, witness, hangman.
There was n eye witness only circumtancial witness. The murderer was sentenced to death.
read following statement and determne who is who.

1. M knew both murderer and victim.
2. Judge asked C to discribe murder incident.
3. W was last to see F alive.
4. Police found G at the murder site.
5 H and W never met.

Cognizant Technologies Placement Question Papers

1. If [x] indicates integral of x i.e is the largest integer less than x and |x| indicates absolute value of x then what is the maximum value of [x]/|x|.
A. 1 B. 0 C.-1 D. None of these Ans: A

2. In the above question what is the minimum value of [x]/|x|.
A. 1 B. 0 C.-1 D. None of these Ans: D
(3-6) If the clock(Conventional clock with numbers from 1 to 12 in order) is cut into 3 pieces such that the sum of numbers on each piece are in Arithemetic Progression(A.P) with a common difference of 1.

3. What is the sum of even numbers in the group where 5 is present?
A. 4 B. 10 C. 12 D. 14 Ans: B

4. What is the product of all numbers in the group in which 12 is present
A. 212 B. 252 C. 244 D. None of these

5. What is the count of numbers in each piece.
A. 2,2,5 B. 5,5,2 C. 3,4,5 D. 6,4,2 Ans: C

6. What is the count of numbers in each piece.
A. 2,2,5 B. 5,5,2 C. 3,4,5 D. 6,4,2 Ans: C

7. Avinash takes 15 days to complete a work and Bada takes 12 days to complete the same work. If they work in alternate days, In how many days they finish the work.
A. 13 days B. 13 1/4 days C. 6 1/4 days D. None Ans:

8. There is a circular track of length 400 mts. If A and B Starts at the same point but in opposite direction with a speeds of 8 m/sec and 12 m/s respectively.Then at what time after the begining they will meet for the second time.
A. 1hr 40 sec B. 20 sec C. 40sec D. 3hr 20 sec Ans: C

9. In the above question when will they meet for the first time at the starting point.
A. 1hr 40 sec B. 20 sec C. 40sec D. 3hr 20 sec Ans: A

10. If the vertices of the triangle are A(1,2), B(-2,-3) and C(2,3) then which is the largest angle?
A. Angle(ABC) B.Angle(BAC) C.Angle(ACB) D.None Ans:B

11. If (-1,0), (0,-1) and (-1,-1) are three vertices of a square then what is the 4th vertex.

12. If [x] indicates integral of x i.e is the largest integer less than x and |x| indicates absolute value of x then find the value of
[1.99]+[-2.99]+[1.03]+[2.50]
A. 2 B.1 C.-2 D. -5
Ans: A
Step1: Add all the numbers
Step2: If it is less than 10 STOP, else go to Step1.

13. If X=6724 then what is the end result after applying the above algorithm.
A. 19 B.10 C.1 D. None Ans:C

14. If the 4 numbers are arranged in all possible orders then how many solutions are possible.
A. ONE B. TWO 3.THREE 4. NONE Ans A

15. A trader frauds by 10% while buying and 10% while selling the same. What is the total gain he obtained during the transaction?
A. 13 B.221/4 C.20 D.None of these Ans.

16. There are three cylinders with same height and surface area. If a new cylinder is created by melting these three with the same height as before what is the surface area of the new cylinder when compared to that of the previous.
A. 25% more B.50% more C.100% more D.None

17. If x=a then y=b except when x=b and y=a. If x=a, then p,q,r,s but when x not equal to a then p,q,r,s=e,f,g,h. If x=m or n then both charecters preeciding it and following it also equals the same with the precedence to the preceding charecter.
There r 5 questions based on the above.

Technical & HR questions

1. Transistor advantage over FET

2. Use of DFT.

3. Whether a DC source can be used to run a computer

4. Storage class in C ?

5. what type of I/O device is required for C.

6. Application of the various bands in Satellite communication

7. Process to convert a transistor to diode

8. effect of quantisation on the BW of a signal.

HR Questions

9. How wud u like to spend 7 day holiday

10. what u expect from CTS

11. short term & long term goals

12. How u can contribute from ECE to software

13. Physical realization of Phase modulation.