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 is difference between list set and map?

896

Why is hashset not ordered?

982

What is difference between hashmap and hashtable?

965

Why do we use hashset?

930

What is queue example?

915

What is the advantage of circular linked list?

817

What is the limit of arraylist?

932

What is dynamic array in excel?

887

Which is faster arraylist or linked list?

915

What is the difference between set and unordered_set?

863

Will hashmap allow null keys?

916

Why null is not allowed in treemap?

981

Why do we need arrays if all the operations that are performed on arrays can be performed on arraylist?

861

Why is arraylist used?

957

What is difference between list and array list?

844

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Un-Answered Questions { Data Structures }

What is an ordered list?

995

What is sorting with example?

906

What's the difference between a hashtable and a hashmap?

913

What is the default size of an arraylist?

936

Describe stack operation.

970

What is the complexity of sorting algorithm?

884

Are linked lists useful?

908

What is selection in an algorithm?

873

What is the order of b tree?

933

What is complexity of bubble sort?

882

What is a hashers run?

898

What is hash data type?

944

an array t[100] which contains numbers between 1..99. Return the duplicated value. Try both O(n) and O(n-square).

908

How to inverting a function in sort and searching?

989

Define 2-3 tree?

966

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