# Serendio - College Placement Test

20 Questions | Total Attempts: 32

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Approximate time: 30 minutes

• 1.
Write a few sentences to explain a topic of your interest.
• 2.
A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?
• A.

4

• B.

6

• C.

8

• D.

10

• E.

12

• 3.
If there are 1024*1280 pixels on a screen and each pixel can have around 16 million colors, how much memory do we need to store this?
• A.

2 MB

• B.

4 MB

• C.

8 MB

• D.

16 MB

• E.

32 MB

• 4.
20% of a 6 litre solution and 60% of 4 litre solution are mixed. What percentage of the mixture of solution?
• A.

24%

• B.

30%

• C.

32%

• D.

36%

• E.

40%

• 5.
If x=y=2z and xyz=256, what is the value of x?
• A.

2

• B.

4

• C.

8

• D.

16

• E.

32

• 6.
In C what would be the value of result after the following snippetint result = 4 << 2;
• A.

4

• B.

8

• C.

16

• D.

64

• E.

Compiler Error

• 7.
X provides a concise and flexible means for matching strings oftext, such as particular characters, words, or patterns of characters. What is X?
• A.

Regular expressions

• B.

Grammer

• C.

Parser

• D.

Symbol Table

• E.

Hash Maps

• 8.
Int z,x=5,y=-10,a=4,b=2; z = x++ - --y * b / a;What number will z in the sample code above contain?
• A.

5

• B.

6

• C.

10

• D.

11

• E.

12

• 9.
Char* myFunc (char *ptr){ ptr += 3; return (ptr);} int main(){ char *x, *y; x = "HELLO"; y = myFunc (x);  printf ("y = %s \n", y); return 0;}
• A.

HELLO

• B.

ELLO

• C.

LLO

• D.

LO

• E.

O

• 10.
What is the return type of a constructor?
• A.

Void

• B.

Int

• C.

Pointer

• D.

No return type

• E.

Same class as constructor

• 11.
What is the mean and median of the following set of numbers?1,1,2,3,5,8,13
• A.

Mean = 16.5, median = 3

• B.

Mean = 3, median = 16.5

• C.

Mean = 1, median = 13

• D.

Mean = 13, median = 1

• E.

Mean = 3, median = 5

• 12.
Which of the following does not maintain the order of elements?
• A.

Queue

• B.

Stack

• C.

Set

• D.

• E.

Circular Queue

• 13.
What kind of index will you use if you are designing a search engine?
• A.

Dense Index

• B.

Bitmap Index

• C.

Sparse Index

• D.

Inverted Index

• E.

Unique index

• 14.
Apple iPhone uses a powereful processor but underclocks it to lower speed. Why?
• A.

Decreases cost

• B.

The phone's OS cannot be run on higher speed processors.

• C.

Improves battery life.

• D.

Marketing tactic.

• E.

GSM network defines the processor speed.

• 15.
Why does the heatsink of a processor have large number of fins?
• A.

Increases the weight of cooling system.

• B.

Increases the surface area

• C.

Increases the density of the metal

• D.

Decreases the thermal conductivity of the system

• E.

None of the above

• 16.
If a computer has 4 bits on its address bus, how many locations can it address?
• A.

4

• B.

8

• C.

16

• D.

32

• E.

64

• 17.
What is the purpose of DNS ?
• A.

It speeds up the network speed.

• B.

It increases the number of machines.

• C.

• D.

It maps computer name to IP address.

• E.

It maps domain name to IP address.

• 18.
What is the angle (in degrees) subtended by the clock hands when the time is 5:15 ?
• A.

20

• B.

40

• C.

50

• D.

60

• E.

70

• 19.
If 10 people were writing this interview, how many ways can 4 candidates be chosen?
• A.

1020

• B.

327

• C.

210

• D.

170

• E.

80

• 20.
What is the latest version of HTML specification that has been released by W3C?
• A.

1

• B.

1.1

• C.

3

• D.

4

• E.

5

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