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 difference between null and void?

947

Write the postfix form of the expression: (a + b) * (c - d)

1043

In what scenario, binary search can be used?

919

Define linked list data structure.

1013

List the area of applications where stack data structure can be used?

917

Define the graph data structure?

956

List the data structures which are used in rdbms.

863

List the data structures which are used in hierarchical data model.

947

What are the advantages of linked list over an array?

943

State the properties of b tree.

1041

What are the applications of graph data structure?

911

Describe the types of data structures?

968

List the data structures which are used in rdbms, network data modal, and hierarchical data model.

884

What is doubly linked list?

910

Write the recursive c function to count the number of nodes present in a binary tree.

867

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Un-Answered Questions { Data Structures }

Define an algorithm. What are the properties of an algorithm? What are the types of algorithms?

919

Define red-black trees.

955

What do you mean by sorting data?

883

What is array in data structure with example?

941

What is the difference between arraylist and linkedlist?

985

Explain what is binary search?

945

Does list allow null values?

924

Tell me about the different sorting techniques.

920

Explain heapsort. What is its complexity?

977

How do I use quick sort?

856

Is hashmap a collection?

900

What happens when arraylist is full?

989

Name some applications which use linked lists.

995

Can we declare array size as a negative number?

1002

What is default size of hashmap?

904

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