# Placement Papers - Wipro

## Why Wipro Placement Papers?

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## How to solve Wipro Placement Papers?

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### WIPRO Interview Experience - HIT, Haldia. 5 September, 2015

Posted By : Nitish Kumar Rating : +58, -16
Me: May I come in Mam.
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 !
Me: Said.

She: What is call by value and call by reference ?
Me: Said.

She: Write a swapping function by passing value using call by reference?
Me: Did.

She: Show me memory allocation of both the main and and swapping function by drawing?
Me: Did.

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?
Me: Said.

She: What is a self referencing pointer?
Me: Said.

She: Write a structure of doubly linked list?
Me: Wrote.

She: Draw the nodes of doubly linked list?
Me: Did.

She: Where is the self referencing pointer in doubly linked list?
Me: Told.

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
ptr->next->prev=ptr->prev;
ptr->prev->next=ptr->next;
free(ptr);

She: What is circular linked list ?
Me: Told.

She: What is circular queue ?
Me: told.

She: What is priority queue ?
Me: told.

She: Name some searching techniques?
Me: Told about linear and binary search.

She: What is binary search?
Me: Told.

She: Name Some Sorting algorithms?
Me: Told.

She: Write 6 numbers and show me the pass after each iteration using bubble sort.
Me: Did.

She: Do the same for selection sort.
Me: I did again.

She: Tell me something about Waterfall model?
Me: Told.

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?
Me: Told.

She: How many page replacement techniques do you know?
Me: Told about 2 only.... 1. FIFO and 2.LRU.

She: What is virtual memory?
Me: Told.

She: From where do we bring such a memory?
Me: Told.

She: What are the benefits of using virtual memory?
Me: Told.

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?
Me: Said.

She: Name all the layers of OSI?
Me: Said.

She: What is difference between UDP and TCP?
Me: Said.

She: Tell me about any one normalization in DBMS.
Me: Said about 1NF with example.

She: What is 2 NF?
Me: Said.

She: Give an example of 2NF?
Me: Said.

She: What is functional dependency?
Me: Said.

She: Gave table and told to normalize?
Me: Did.

She: What is Java?
Me: Told.

She: What are the features of OOPs?
Me: Told.

She: What is the difference between C and Java?
Me: Told.

She: What is encapsulation?
Me: Told.

She: What is abstract class?
Me: Told.

She: What do you mean by overriding?
Me: Told.

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.