NEC-HCL Interview of Amit Tewari

Hello friends... Here follows ma experience at NEC-HCL

First Written test comprises of aptitude(difficult) and C. Second written test, there were 4 easy programming questions (30 min) Any two.
1) Insert delete operation for a balanced binary tree..
2) Reverse words in a string. eg ip=I am ram—o/p=ram i am.. using two buffers..
3) Find minimum in array of integers via recursion..
4) Insert delete operations of a doubly link-list handling all cases..

In this round they basically want to know your knowledge of data structures and what data structure yo use..

After this there were 2 technical rounds and 1 HR round..

Tech 1:-
a) First i was asked to explain the programs that i wrote..
b) Find existence of loop in  a link list  using a single pointer.
c) Find whether a list is circular or not..
d) What is virtualization?
e) Why virtual constructors dosen’t exists.
what are virtual functions(why we use them)..(what is v-table).
f) Give a practical use of abstract classes..
g) What is overhead of virtual finction..
h) In window xp what is the virtual memory size..
i) What happens if  a function is defined const(and can it modify automatic variables or static members of class)..
j) Is there a sorting  algo which is best for all cases.
k) Given a set of data can we apply quick sort.
l) What is thrashing.
m) Asked about my website project.
n) Would you like to ask us anything?.


Tech 2:-
a) What was  FP tree project.
b) What do we mean by saying that a machine is 32 bit machine.
c) What are address bus.
d) From where address line comes from and go to.
e) Questions on virual memory.
f) How are system calls implemented..
g) Difference b/w function call and system call..
h) Questions over socket communication..
i) Questions over pointers.
j) What are different process states..

HR Round
a) Tell us about urself.
b) Tell us abt ur family members.
c) Wt r ur strength and weakness.
d) How will u adjust in japan if u r send there.
e) Do u have a girlfriend.
f) Do u wana go for higher studies(mba or m-tech).
g) Would you like to ask us anything?.