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,

1032

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,

973

Write any two principles of gradation of structures.

Mahatma Gandhi University,

983

write a code for Implementation of stack and queues.

InterGraph,

970

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

Expedia,

1096

Minimum number of queues needed to implement the priority queue?

1 1416

What is the data structures used to perform recursion?

1 2156

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

1 1448

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

1 1529

How many different trees are possible with 10 nodes ?

1 1533

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

1 1329

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Un-Answered Questions { Data Structures }

Is an arraylist an object?

970

Define the term “percolate up”?

949

What do you understand by doubly linked list?

913

Can you use Bubble Sort To sort the number of elements.

864

What are the advantages of binary search over linear search?

1040

Explain quick sort and merge sort algorithms.

970

When would you use a tuple?

855

Describe the height term in a tree.

977

What is difference between linear and non linear data structure?

1163

How do you find the size of an arraylist?

832

Is bubble sort faster than selection sort?

844

What is linked list in data structure?

1017

What is sorting with example?

906

What are stacks? Give some of its applications.

977

What is hash value of a string?

896

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