Verifone PLACEMENT PAPERS ------ Verifone Placement Paper 1






Verifone PLACEMENT PAPERS ------ Verifone Placement Paper 1..

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Verifone test Questions :

There are two parts :
Note: The Answers given here are what i wrote, May not be
correct.

1. Aptitute test : 15 Minutes, 20 Questions

Towards the middle questions are easy than from the
front.

eg. Product of three consecutive nos. 210. What
is the sum
of two least numbers?
ans.: 5 * 6 * 7 = 210 , sum = 11 is answer

eg. If the area of the sqaure is increased by 69 %
how
much the length of the side will increase?

ans.: 13 (i think)
eg. if the sum of five consecutive nos. 35? how
many prime nos
are there :

ans: 5 + 6 + 7 + 8 + 9 = 35 so two primes

eg. if the length of the rectangle is reduced by
20% and breath
is increased by 20 % what is the net
change ?
ans.: 4 % decrease

2.

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i. Electrical & Electronics : 15 Questions
and,nand...circuit realted stuff, ..........

ii.Data Structures, Algo., & Complexity theory : 5 questions

a. if W is a sequence of strings without a and W' is its
reversal
then WaW' is generated by:

ans. i think Context Free Grammmars

b. Whether all recusive pgm can be writtten iteratively?

c. What data structes you will use if you want to go to
first record from
the last and vice versa?
ans.: doubly linked circular list

d. Given 10000 nos. and 48MB Memory. What is the
complexity of the
efficient sorting algo.? (the algo. is not mentioned)

e. Given a C code and ask what it does?
I think the code was something similar to Bubble
sort and that
particular code does the sorting in Desending order and the
complexity
is O(n^2)(which is the next question).

iii. OS : 5 questions

a. If there are too many page faults what is the problem?

b. To ensure one pgm. doesnt corrupt other pgm. in a Multi-
pgm. enviornment
what you should do?

c. Which one you will use to implement critical section?
Binary Semaphore

d. Which one is not needed for Multi-pgm. enviornment?
options are: virtual memory,security,time
sharing,none of the
above.


iv. Networks and Hardware: 5 questions

a. Which one is not done by Data link layer ?
bit stuffing, LRC,CRC,parity check

b. Which one is not related to Data link layer?

c. Which one is not suitable for client-server application?
tcp/ip,message passing,rpc,none of the above.

d.



v. Databases and Misc.: 5 questions

a. What SQL .................. (not the expansion)

b. Indexing in databases give you ............

c.

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vi. C Pgm. : 5 questions

1. int a=1,b=2,c=3;
printf("%d,%d",a,b,c);
What is the output?

2. for(i=0; i<=10;i++,printf("%d",i); +- (+- is there in
the questions)

3. Scope of Static Variable ............

4. Given a C code and what is the output?

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