The document provides an overview of data structures, defining them as methods for storing and manipulating data, with examples such as arrays and linked lists. It covers various applications in computer science, operations performed on stacks, and types of trees. Additionally, it distinguishes between push and pop operations in stack management.

1. Data Structures
Interview
Questions

2. 1) What is data structure?
A data structure is a set of procedures to define, store, access,
and manipulate data. For instance; arrays, linked lists, stacks,
queues, etc. Data Structures are an integral part of multiple
computer science algorithms that enable the management of data
in a systematic way.

3. 3) Is an array a data
structure?
An array is a linear data structure that is a
determination collection of similar data types
and stores in previous or successive memory
locations. For instance; an array cannot
contain either character elements or integers
together.

4. 4) List the area of
applications of Data
Structure.
Following are the areas of computer
science where data structures are applied:
- Artificial Intelligence
- Compiler Design
- Database Management System
- Graphics
- Numerical Analysis
- Operating System
- Simulation
- Statistical Analysis Package

5. 5) List the data structures which are used
in RDBMS, Network Data Modal, and
Hierarchical Data Model.
The lists below entail the list of data structures used:
- RDBMS uses an Array data structure,
- Network data model uses Graph,
- Hierarchal data model uses Trees.

6. 6) What are the operations that can be
performed on a stack?
-Push Operations
- Pop Operations
- Peek Operations

7. 7) What is the difference between PUSH and
POP?
The PUSH and POP designate the entry and removal of data to a stack.
PUSH: It specifies that data is being "inserted" into the stack.
POP: It specifies data retrieval. It means that data is being deleted from
the stack.

8. 8) What is stack
example?
FOR EXAMPLE, A PILE OF PLATES, A
DECK OF CARDS, A STACK OF
PLATES, ETC. A STACK IS CALLED A
LAST IN FIRST OUT (LIFO) LIST. THE
LAST ELEMENT IS THE FIRST TO BE
TAKEN OUT.

9. 9) List the types of tree.
It entails six types of tree which include:
- Binary Tree
- Binary Search Tree
- Expression Tree
- Forests
- General Tree
- Tournament Tree

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