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

Data Structures Interview Questions

Questions Answers Views Company eMail

Explain heapsort. What is its complexity?

Essar,

977

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

iNautix,

865

What is a reverse linked list.

Aspiring Minds,

1032

Give us a program to reverse a linked list.

DELL, Genpact,

975

What is 2 dimensional linked list?

Tech Mahindra,

1004

Reverse a linked list from the middle.

Aspiring Minds,

932

Write a program to reverse a single linked list.

CGI,

943

Explain how is linked list implemented?

BPL,

938

Explain Stack

Tech Mahindra,

1023

Explain Queue

Tech Mahindra,

1060

Explain Array

Tech Mahindra,

964

Explain Linked List

Tech Mahindra,

1004

There is a program which inserts and deletes node in a sorted singly linked list. There is a bug in one of the modules, how would you debug it?

DELL,

1706

Provide an algorithm to reverse a linked list without using recursion.

Wipro,

933

What do you know about different sorting algorithms?

Zomato,

1055

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Un-Answered Questions { Data Structures }

What are the main differences between the linked list and linear array?

975

Is hashmap part of collection?

945

State the merit of linked representation of binary trees?

936

How does variable declaration affect memory allocation?

1758

How do you do a mergesort?

906

What is the order of b tree?

933

What is Storage Structures and File Structures? Can you show their relation? What are the examples of each? Thanks

2546

What is difference between hashmap and map?

1087

Which data structures are used in bfs and dfs algorithm?

1040

What are linked lists most commonly used for?

897

Write the algorithm for converting infix expression to postfix expression?

964

How can someone display singly linked list from first to last?

857

How do you find the number of comparisons in bubble sort?

884

Tell me can the size of operator be used to tell the size of an array passed to a function?

1009

What is the impact of signed numbers on the memory?

941

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