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 31722

what is hashing

Infosys, Nirma,

7 15861

what is mean by d-queue?

11 25059

example of linear and non-linear data structures?

Aricent, Infosys,

9 69886

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

2 6441

what is a complexity of linear search,binery search?

ABB, Google,

10 40593

what is AVL tree?

ADS, TCS,

5 17052

Tell me real world example of polymorphism and encapsulation .

CybAge, Winit,

10 41748

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

CybAge, Innowe, TCS, Wipro,

2 13383

Why enum can not be used directly with printf function?

3 8105

what is R-B tree

Wipro,

4 11087

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

Syntel,

8 44494

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

Wipro,

3 13862

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

Persistent, TCS, Wipro,

12 27913

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

TCS,

2 8121

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Un-Answered Questions { Data Structures }

Why is quicksort better than mergesort?

914

Tell us the difference between merge and quick sort. Which one would you prefer and why?

1011

Is vector synchronized?

907

When ArrayIndexOutOfBoundsException occurs?

1120

What is a vector class?

858

write a program to show the insertion and deletion of an element in an array using the position

868

What is difference between while and do while?

865

Which is faster hashmap or hashtable?

911

Name two algorithms two find minimum spanning tree?

921

What exactly is data?

916

Which is more efficient merge sort vs quicksort?

844

What are two types of sorting?

998

Which sort is best for linked list?

860

Define red-black trees.

947

What is data type with example?

938

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