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?

1163

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

1119

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

877

Differentiate between singly and doubly linked lists?

987

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

1006

How does hashset work internally in java?

1010

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

889

Is it possible to make an array volatile in java?

920

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

939

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

900

Which is the simplest file structure?

1006

Differentiate between queue and deque.

957

Differentiate between hashset and hashmap.

990

Differentiate between iterator and enumeration.

920

Differentiate between hashset and treeset.

1005

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Un-Answered Questions { Data Structures }

What is basic data structure?

906

List the area of applications of data structure.

1205

Can a stack be described as a pointer? Explain.

927

What is sort in data structure?

883

Describe avl tree or height balanced binary search tree.

899

When will we get ArrayStoreException?

1172

What do you mean by garbage collection?

956

Define splay tree?

968

What is the space complexity of quicksort?

914

Which sorting is best and why?

901

What is a data structure definition?

958

Which is the parent class of enumset class?

956

What is the difference between array sort () and array sort t >()?

853

How do you balance a tree?

961

What is the complexity of adding an element to the heap?

937

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