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

Data Structures Interview Questions

Questions Answers Views Company eMail

Calculate the address of a random element present in a 2d array, given base address as ba.

1464

List some applications of queue data structure.

884

Write a recursive c function to calculate the height of a binary tree.

869

Differentiate among cycle, path, and circuit?

921

What will you prefer for traversing through a list of elements between singly and doubly linked lists?

882

Where will be the free node available while inserting a new node in a linked list?

888

How can you insert a node in a random location of the linked list?

854

For which header list, the last node contains the null pointer?

817

Mention a few applications of linked lists?

888

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

815

How can we delete any specific node from the linked list?

873

How can we delete the first node from the singly linked list?

906

Explain singly linked list in short.

861

Mention some drawbacks of the linked list.

919

Explain linked list in short.

864

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Un-Answered Questions { Data Structures }

What are different sorting algorithms?

870

What is definition list?

898

Why is data structure important?

945

How many null values are allowed in a set?

844

Describe tree database. Explain its common uses.

926

What does it mean to sort an array?

890

Define a binary tree?

925

Which sorting algorithm is used in arrays sort?

829

What is stable sort example?

837

What is difference between hashmap and hashset?

917

Write an algorithm to show the postfix expression with the input given as : a b + c d +*f ? .

872

Why do we need a data structure?

942

What is unbounded queue?

878

Which sorting algorithm is used in collections sort?

774

How do you replace an element in an arraylist?

955

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