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?

1202

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

1171

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

921

Differentiate between singly and doubly linked lists?

1040

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

1073

How does hashset work internally in java?

1051

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

932

Is it possible to make an array volatile in java?

974

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

973

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

951

Which is the simplest file structure?

1054

Differentiate between queue and deque.

1001

Differentiate between hashset and hashmap.

1041

Differentiate between iterator and enumeration.

969

Differentiate between hashset and treeset.

1059

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Un-Answered Questions { Data Structures }

What is stack in geography?

931

Are linked lists considered linear or non-linear data structures?

1027

What is default array size?

1062

Are lists mutable?

999

Is collection a class or interface?

954

What is raid (redundant array of inexpensive disks)? Explain its level?

965

What is top in stack?

899

How is bubble sort done?

899

What is shell sort in data structure?

902

How do you sort a list in reverse order?

873

Are dictionaries mutable?

904

Which is better merge sort or quick sort?

897

Can hashtable have duplicate values?

961

How do I use quick sort?

905

How to sequentially represent max-heap?

965

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