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

Data Structures Interview Questions

Questions Answers Views Company eMail

what is the need of data structure

11 31303

what is hashing

Infosys, Nirma,

7 15635

what is mean by d-queue?

11 24698

example of linear and non-linear data structures?

Aricent, Infosys,

9 69590

ple.. briefly describe the purpose of having a base case and a recursive case in a recursive algorithm

2 6299

what is a complexity of linear search,binery search?

ABB, Google,

10 40286

what is AVL tree?

ADS, TCS,

5 16846

Tell me real world example of polymorphism and encapsulation .

CybAge, Winit,

10 41390

difference between the run time polymorphism and compile time poly morphism and about virtual function.

CybAge, Innowe, TCS, Wipro,

2 13251

Why enum can not be used directly with printf function?

3 7947

what is R-B tree

Wipro,

4 10900

what is the different between B-tree and B+ tree.

Syntel,

8 44236

how to search an element in sorted linked list with time complexity is O(log n).

Wipro,

3 13716

how to find the number of possible tree in the given tree.

Persistent, TCS, Wipro,

12 27510

why do tree always takes o(log n) time?

TCS,

2 7975

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Un-Answered Questions { Data Structures }

How do you sort elements in an arraylist?

832

Which are the sorted collections?

892

What is a node in it?

881

What is an example of an array?

964

Write a program to sum values of given array.

970

What is ascending and descending order?

807

What sorting algorithm does arrays sort use?

772

Which sorting algorithm is used in arrays sort?

818

Can we put null key in hashmap?

842

Define a tree?

939

Which data structure is applied when dealing with a recursive function?

969

How would you swap the Kth node from beginning with Kth node from end in a Linked List.

881

Why is quicksort better than mergesort?

866

How can you insert a node to the beginning of a singly linked list?

882

Is hashmap a data structure?

936

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