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 does the dummy header in the linked list contain?

1110

How many pointers are necessary to implement a simple linked list?

1082

How can you insert a node at the end of linked list?

824

Differentiate between singly and doubly linked lists?

931

What is the difference between the hash table and hash map?

942

How does hashset work internally in java?

948

For addition and deletion. Which one is most preferred: array list or linked list?

853

Is it possible to make an array volatile in java?

860

For searches. Which one is most preferred: array list or linked list?

891

What is a spanning tree?does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes?

843

Which is the simplest file structure?

959

Differentiate between queue and deque.

905

Differentiate between hashset and hashmap.

922

Differentiate between iterator and enumeration.

861

Differentiate between hashset and treeset.

944

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Un-Answered Questions { Data Structures }

Which interface treemap implements?

934

Explain the Queue

955

What are different types of sorting techniques?

884

What are the advantages and disadvantages of linked list over array?

975

Can a hashset contain duplicates?

882

How does a treemap work?

943

how to add an item to the beginning of the list?

928

When will you use array over arraylist?

929

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

885

what is the biggest advantage of linked lists?

889

What is garbage collection in data structure?

899

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

869

What is the difference between ienumerable and list?

821

What are the advantages of array?

855

Is array a data type?

821

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