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Data Structures Interview Questions
Questions Answers Views Company eMail

What does the dummy header in the linked list contain?

 754

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

 689

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

 491

Differentiate between singly and doubly linked lists?

 514

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

 520

How does hashset work internally in java?

 521

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

 516

Is it possible to make an array volatile in java?

 513

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

 554

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

 510

Which is the simplest file structure?

 553

Differentiate between queue and deque.

 514

Differentiate between hashset and hashmap.

 518

Differentiate between iterator and enumeration.

 528

Differentiate between hashset and treeset.

 549

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Un-Answered Questions { Data Structures }

What is b tree in data structure?

490

How can we reverse the order in the treemap?

490

What are the tasks performed during postorder traversal?

542

How is a queue works?

545

Define the graph data structure?

548




What is variable size arrays?and why we use it?

625

Which sort is stable?

547

Explain binary representation?

499

What is bubble sort?

525

Can arraylist have null values?

470

What is the use of prototype?

469

Can a null element added to a treeset or hashset?

469

Difference between hashset and treeset?

561

Why is quicksort better than mergesort?

491

What are data members?

519

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