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?

941

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

1035

In what scenario, binary search can be used?

916

Define linked list data structure.

993

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

913

Define the graph data structure?

950

List the data structures which are used in rdbms.

860

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

946

What are the advantages of linked list over an array?

937

State the properties of b tree.

1040

What are the applications of graph data structure?

903

Describe the types of data structures?

959

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

877

What is doubly linked list?

905

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

861

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Un-Answered Questions { Data Structures }

Sorting is not possible by using which of the methods?

914

What are the applications of b-tree?

977

Differentiate between hashset and hashmap.

977

Define binary tree insertion.

949

What is the default capacity of hashmap?

830

What is the time complexity of hashmap get () and put () method?

878

What are the different binary tree traversal techniques?

1014

Is hashmap get thread safe?

858

How would you dynamically allocate a one-dimensional and two-dimensional array of integers?

980

Which language is best for data structures?

948

Difference between calloc and malloc ?

940

Write an algorithm to show the reverse of link list?

856

Which sorting does collections sort use?

891

Define a full binary tree ?

1003

What are the difference between malloc() and calloc()?

1005

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