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?

983

What is difference between hashmap and hashtable?

966

Why do we use hashset?

931

What is queue example?

916

What is the advantage of circular linked list?

818

What is the limit of arraylist?

932

What is dynamic array in excel?

888

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?

982

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

864

Why is arraylist used?

959

What is difference between list and array list?

846

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Un-Answered Questions { Data Structures }

What is unbounded queue?

920

What is time complexity of sorting algorithms?

931

What is numeric array?

849

What is the best data structure and algorithm to implement cache?

963

Explain about set and their types in a collection?

857

Which interfaces are implemented by concurrentskiplistset?

863

List the types of rotations available in splay tree?

1147

How many types of searching are there in data structure?

845

Tell me why might quick sort might be better than merge sort?

921

How does arraylist store data?

958

Which sorting method is slowest?

965

Can we remove element from arraylist while iterating?

969

What is the minimization factor and time complexity of b-tree?

1152

Why sorting is done?

860

What do you mean by spanning tree?

1115

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