**1.**

What is data structure?

**2.**

List out the areas in which data structures are applied extensively?

**3.**

If you are using C language to implement the heterogeneous linked list, what pointer type will you use?

**4.**

What is the data structures used to perform recursion?

**5.**

What are the methods available in storing sequential files ?

**6.**

List out few of the Application of tree data-structure?

**7.**

In RDBMS, what is the efficient data structure used in the internal storage representation?

**8.**

What is a spanning Tree in data structure?

**9.**

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

**10.**

Whether Linked List is linear or Non-linear data structure?

**11.**

What is the quickest sorting method to use?

**12.**

How can I search for data in a linked list?

**13.**

What is the heap in data structures?

**14.**

What is the easiest sorting method to use in data structures?

**15.**

What is the bucket size, when the overlapping and collision occur at same time?

**16.**

In an AVL tree, at what condition the balancing is to be done?

**17.**

Minimum number of queues needed to implement the priority queue?

**18.**

How many different trees are possible with 10 nodes ?

**19.**

What is a data structure node class?

**20.**

When can you tell that a memory leak will occur?

**21.**

What is placement new in data structures?

**22.**

Tell how to check whether a linked list is circular ?

**23.**

What is the difference between ARRAY and STACK in Data Structures?

**24.**

What is the difference between NULL AND VOID pointer in Data Structures?

**25.**

What is precision in Data Structures?

**26.**

What is impact of signed numbers on the memory using Data Structures?

**27.**

How memory is reserved using a declaration statement in data structure?

**28.**

How many parts are there in a declaration statement using data structures?

**29.**

Is Pointer a variable in data structure?

**30.**

What is significance of � * � ?

**31.**

Why do we Use a Multidimensional Array in data structure?

**32.**

How do you assign an address to an element of a pointer array ?

**33.**

Run Time Memory Allocation is known as in data structure?

**34.**

What method is used to place a value onto the top of a stack?

**35.**

What method removes the value from the top of a stack?

**36.**

What does isEmpty() member method determines?

**37.**

What is a queue in data structure?

**38.**

What is the relationship between a queue and its underlying array?

**39.**

Which process places data at the back of the queue?

**40.**

Why is the isEmpty() member method called?

**41.**

How is the front of the queue calculated in data structure?

**42.**

What does each entry in the Link List called?

**43.**

What is Linked List in data structure?

**44.**

What member function places a new node at the end of the linked list?

**45.**

How is any Data Structure application is classified among files?

**46.**

Which file contains the definition of member functions?

**47.**

What are the major data structures used in the following areas : RDBMS, Network data model & Hierarchical data model?

**48.**

Difference between calloc and malloc in data structures?