Persistent Campus Placement Experience

One of my very good friends Rajan manage to got placed with Persistent Systems Ltd. last year.
This was his experience:

Statistics:
Place: DKTE Ichalkarangi.
Appeared for Aptitude : 600+
Shortlisted from apti : 138
Final selected : 13

Persistent Apptitude Test:
1. 40 marks test
three sections : Logical, Quantitative, Technical
2.Two technical interviews followed by HR interview.
3.Options were given to choose either development or testing.
If you choose development then there is another programming test (on paper only).

Persistent Interview Questions:
First Technical Round
Q. Tell me about yourself?
Q. He said there are coins are arranged in pattern shown in diagrams. You have to make any one diagram looks like other by changing only three coins position?
Q. Puzzle There is cage which contents rabbits and chickens the total legs counted in cage are 170 and total animals in cage are 50.Find out number of rabbits and chickens in the cage.
Q. Puzzle In a lake ther are two types of fishes gubbi's and non-gubbi's,gubbi's are 1% and non-gubbi's are 99%,total fishes in lake are 200.So by removing how many non-gubbi's you can make non-gubbi's 98%.
Q. What is difference between array and linked list?
Q. Write a program to insert node at the end of singly linked list?
Q. Write a program to insert node in between linked list?
Q. Write a program which will convert given decimal number into binary?
Q. Write above program using recursion?
Q. What are storage classes?
Q. Explain static ,auto storage classes?
Q. Expain project you have done?
Q. Tell me range of int,float,char,short int,long int,usinged char,singed char?
Q. What is malloc and how it is work?
Q. Allocate memory for link list node dynamically?
Q. Why we required type casting after allocating memoy using malloc?
Q. What is TCP/IP explain?
Q. Differentiate UDP and TCP/IP?
Q. Explain second program you have witten during development test? (The program is about calculating connectivity of given path matrix and display highest and least conectiviy nodes.) Second Technical round
Q. Write code for allocating memory to object using new and malloc?
Q. What is difference between memory allocation of new and malloc?
Q. What is polymorphism?what are it's different types?explain with example?write code for them?
Q. Consider following code
class obj{ int num; float fraction;};
if we create object of class obj then how much memory it required?if we add some member functions to the class then what will be memory required to object? if class do not have any data members and any member functions then how much memory requiresto the object of such class.
Q. How we access database from java?
Q. Explain life cycle of software?
Q. What is process model?list process models?
Q. Explain waterfall model , Iterative enhancement model and prototyping model?
HR Round
Q. How aptitude test was?
Q. Tell me about yourself?
Q. What are your strong points?
Q. What are your weak points?
Q. Which are your favorate subjects?
Q. Why they are so favorate to you?
Q. Why you choose this field?
Q. Do you know anyone who working in Persistent?
Q. Why team work is important?
Q. What do you think about Persistent?