Data Structures Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Structures Interview Questions

Questions Answers Views Company eMail

How to initialize Dictionary using collection initialize?

Wipro,

1042

Write a program to reverse a link list.

iNautix,

931

What are skew trees? For a tree with 4 nodes draw all possible binary? Generalize for n nodes how many binary trees can be drawn?

Tech Mahindra,

1033

How to increase stack limit in w3wp.exe?

PUCIT,

1050

What is variable size arrays?and why we use it?

MCN Solutions,

1022

How do you rotate an AVL tree?

Global Logic,

974

Write any two principles of gradation of structures.

Mahatma Gandhi University,

983

write a code for Implementation of stack and queues.

InterGraph,

972

Complete structure of hashmap, very detail description, along with the basic coding of the hashmap internal implementation.

Expedia,

1099

Minimum number of queues needed to implement the priority queue?

1 1418

What is the data structures used to perform recursion?

1 2157

What are the notations used in Evaluation of Arithmetic Expressions using prefix and postfix forms?

1 1449

Sorting is not possible by using which of the following methods? (a) Insertion (b) Selection (c) Exchange (d) Deletion

1 1531

How many different trees are possible with 10 nodes ?

1 1533

List out few of the Application of tree data-structure?

1 1330

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Un-Answered Questions { Data Structures }

What is unbounded queue?

920

Can we insert null in set?

887

Which is better merge sort or quick sort?

854

What is java priority queue?

976

Define linear data structures?

1008

How to show internal storage representation of data structure in RDBM?

980

Why arraylist is not efficient for manipulation?

861

What member function places a new node at the end of the linked list?

1063

How would you use bsearch() function to search a name stored in array of pointers to string?

850

Describe the complexity of Binary search

900

List the data structures which are used in network data modal.

883

How do you find the index of an element in an arraylist?

876

In Data Structure, write output of given program.

913

Which is better hashset or treeset?

1014

Is arraylist reference type?

931

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