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Programming Concepts
Unit 1
Object-Oriented Programming (OOPs)
Introduction to OOPs
Classes and Objects
Inheritance and Polymorphism
Unit 2
Data Structure and Algorithms
Introduction to Data Structures
Arrays and Linked Lists
Sorting and Searching Algorithms
Unit 3
Operating System
Introduction to Operating System
Process Management in Operating System
Memory Management in Operating System
File Systems in Operating System
Unit 4
Database Management
Introduction to Databases
Database Design and Modeling
Query Optimization and Performance Tuning
Unit 4 • Chapter 1
Introduction to Databases
Summary
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Concept Check
What is a primary key in a database?
A unique identifier for each record
A table of data
A way to query data
A collection of databases
Why is normalization important in databases?
To reduce redundancy and improve data integrity
To speed up data retrieval
To minimize data storage
To increase redundancy in data
What is a database index used for?
To improve data retrieval performance
To store data permanently
To create database schemas
To back up data regularly
What is SQL used for in databases?
To design user interfaces
To generate random data
To manage network connections
To query and manipulate data
What is a foreign key in a database?
A field that links to a primary key in another table
A key used to unlock the database
A table with no relationships
A key that can be duplicated
Check Answer
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Database Design and Modeling