WIPRO Interview Experience - HIT, Haldia. 5 September, 2015
She: Yes Come in.
Me: Good afternoon Mam.
She: Good afternoon and get seated.
Me: Thank you mam.
She: What is you Name ?
Me: Nitish Kumar.
She told to wait for 2 minutes...
She: Come on tell me about yourself !
She: What is call by value and call by reference ?
She: Write a swapping function by passing value using call by reference?
She: Show me memory allocation of both the main and and swapping function by drawing?
She: Take a integer variable and a character variable in a union and same in structure. What are their sizes?
Me: Said that union will allocate max sizeof(int, char) so size of int i.e 4 bytes and structure will allocate 4+1=5 bytes.
She: In the union assign the integer variable a=5 and later assign character variable ch='c' What will be printed if we print integer a and character ch ?
Me: Said that their will be no change in character variable as it has been assigned later but the integer variable first 8 bits will be altered so value will change from 5 to some new integer variable.
She: What is a pointer?
She: What is a self referencing pointer?
She: Write a structure of doubly linked list?
She: Draw the nodes of doubly linked list?
She: Where is the self referencing pointer in doubly linked list?
She: Make 3 nodes in doubly linked list and delete the 2nd node. Use pointer as ptr. Write the logic.
Me: Traverse the pointer ptr to 2nd node and execute
She: What is circular linked list ?
She: What is circular queue ?
She: What is priority queue ?
She: Name some searching techniques?
Me: Told about linear and binary search.
She: What is binary search?
She: Name Some Sorting algorithms?
She: Write 6 numbers and show me the pass after each iteration using bubble sort.
She: Do the same for selection sort.
Me: I did again.
She: Tell me something about Waterfall model?
She: What other SDLC models do you know?
Me: Told about iterative waterfall, v model, prototyping model and spiral model.
She: What is prototyping model?
She: How many page replacement techniques do you know?
Me: Told about 2 only.... 1. FIFO and 2.LRU.
She: What is virtual memory?
She: From where do we bring such a memory?
She: What are the benefits of using virtual memory?
She: How much memory does a processor process at a time?
Me: Told that It depends on processor but she asked for memory in bits and didn't know the exact answer.
She: Do you know what is finite automata?
Me: Said yes.
She: Asked for the types of finite automata.
Me: Told about DFA and NFA.
She: Make a FA which will accept only 3 strings 110.
She: Tell me something about OSI layer?
She: Name all the layers of OSI?
She: What is difference between UDP and TCP?
She: Tell me about any one normalization in DBMS.
Me: Said about 1NF with example.
She: What is 2 NF?
She: Give an example of 2NF?
She: What is functional dependency?
She: Gave table and told to normalize?
She: What is Java?
She: What are the features of OOPs?
She: What is the difference between C and Java?
She: What is encapsulation?
She: What is abstract class?
She: What do you mean by overriding?
She: Which subjects did you like in your course curriculum?
Me: Said, I liked Programming with C, OOP using Java , Computer networking and Software engineering most.
That was my interview. Only the technical questions were asked from me. No HR questions was asked.
The interview went for 50 minutes.
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