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

Data Structures Interview Questions

Questions Answers Views Company eMail

Compare Queue and Topic ?

Tech Mahindra,

1161

When should structures be passed by values or by reference?

Tech Mahindra,

1070

What are AVL trees?

HAL,

1154

What do you mean by spanning tree?

TCS,

1183

Define binary tree insertion.

Tech Mahindra,

1018

What is Doubly link list?

TCS,

1003

Different Types of pattern?

Wipro,

1022

Give a real time example of stack

1002

Define red-black trees.

Wipro,

1001

Explain what is B-tree?

BPL,

1090

What is the difference between a Stack and a Queue.

Genpact, TCS,

1013

Explain the Complete structure of hashmap along with the basic coding of the hashmap internal implementation.

Expedia,

1155

How to check array contains value or not?

994

what is traversal in linked lists?

1133

Mention for which header list, you will found the last node contains the null pointer?

900

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Un-Answered Questions { Data Structures }

What is the difference between b tree and binary search tree?

918

If we add enum constants to a sorted collection ( treemap , treeset ), what will be the order in which they will be maintained?

1009

What is the difference between collections class vs collections interface?

1028

What are the categories of avl rotations?

1036

What is difference between linear and non linear data structure?

1235

Write an algorithm to show various operations on ordered list and arrays

968

What is sort in data structure?

929

What is a treemap chart?

901

What is stable sort?

1064

What is a hash index?

930

Why linked list is required?

891

What is structured data with example?

938

What does quick sort do?

932

Which is better than array and linked list?

988

How does quick sort work?

988

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