Data Structures Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Structures Interview Questions

Questions Answers Views Company eMail

Differentiate between hashmap and treemap.

965

Differentiate between the singly linked list and doubly linked list.

982

Differentiate between set and map.

1148

Differentiate between collection and collections.

1075

Differentiate between iterator and listiterator.

987

Differentiate between iterable and iterator.

1084

Differentiate between failfast and failsafe.

1165

Differentiate between queue and stack.

1192

Differentiate between list and set.

1061

Differentiate between an array and an arraylist.

1061

Differentiate between hashmap and hashtable.

1106

Differentiate between list and map.

1008

Differentiate between comparable and comparator.

1018

Differentiate between arraylist and vector.

1353

Differentiate between priorityqueue and treeset.

1230

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Un-Answered Questions { Data Structures }

What are linked lists good for?

849

How can we delete the first node from the singly linked list?

946

How helpful is abstract data type of data structures?

858

List all data structures you would use for a memory management module.

959

What is binary tree in computer science?

905

What do you mean by data and data structure?

961

Is hashmap keyset ordered?

995

Which is more efficient merge sort vs quicksort?

844

What is bubble sort technique?

867

How many links are there in a binary tree of N nodes?

1016

What is difference between set and map?

984

Is json a data structure?

925

Mention the steps to insert data at the starting of a singly linked list?

967

Explain the implementation of an AVL tree and Binary tree.

938

How do you sort a map by key?

841

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