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Data Structure Interview Questions

Below we have listed all the Data Structure Interview Questions and answers. Feel free to comment on any Data Structure Interview Questions or answer by the comment feature available on the page.

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A data structure is a specialized format for organizing and storing data. General data structure types include the array, the file, the record, the table, the tree, and so on. Any data structure is designed to organize data to suit a specific purpose so that it can be accessed and worked with in appropriate ways. A data structure is a collection of data items stored in memory, in addition a number of operations are provided by the software to manipulate that data structure. Data Structure is a way of collecting and organising data in such a way that we can perform operations on these data in an effective way.

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Question
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What is the stack?
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What is Heap data structure?
4.5 Rating
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What are the major data structures used in the following areas : RDBMS, Network data model & Hierarchical data model?
4.5 Rating
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Why is the isEmpty() member method called?
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What method is used to place a value onto the top of a stack?
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What is Linked List ?
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How many parts are there in a declaration statement?
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How can a node be inserted in the middle of a linked list?
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What are the various kinds of sorting techniques? Which is has best case?
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What is binary tree?
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Which one is faster? A binary search of an orderd set of elements in an array or a sequential search of the elements.
4.5 Rating
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Name the data structure used to maintain file identification?
3.4 Rating
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List out the areas in which data structures are applied extensively?
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If you are using C language to implement the heterogeneous linked list, what pointer type will you use?
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What is the data structures used to perform recursion?
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What are the methods available in storing sequential files ?
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List out few of the Application of tree data-structure?
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In RDBMS, what is the efficient data structure used in the internal storage representation?
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What is a spanning Tree?
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Does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes?
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Latest 20 Questions
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal
"Holiday Packages" announced as an advertisement are an example of _________: (a) Offer (b) Counter Offer (c) Invitation to Offer (d) None of the above
A match fixing contract between a player and a broker is a: (a) Valid Contract (b) Unenforceable Contract (c) Void Contract (d) Illegal Contract
When a bookseller sells a book on cash payment then it is called as ___________: (a) Unilateral Contract (b) Bilateral Contract (c) Executed Contract (d) Executory Contract
____________ agreements are created by situation: (a) Written (b) Oral (c) Void (d) Implied
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