Networking, Java, and Testing Fundamentals

Networking

• Types of Networks:
  • LAN (Local Area Network): connects devices in a limited geographical area
  • WAN (Wide Area Network): connects devices over a larger geographical area
  • WLAN (Wireless Local Area Network): connects devices wirelessly
• Network Topologies:
  • Physical: describes the physical layout of devices
  • Logical: describes how data flows between devices
• Network Protocols:
  • TCP/IP (Transmission Control Protocol/Internet Protocol): a set of protocols used for communication on the internet
  • HTTP (Hypertext Transfer Protocol): a protocol used for transferring data over the web
  • FTP (File Transfer Protocol): a protocol used for transferring files over a network
• Network Devices:
  • Routers: connect multiple networks and route traffic
  • Switches: connect multiple devices and forward traffic
  • Firewalls: control incoming and outgoing network traffic based on security rules

Java

• Java Basics:
  • Object-oriented programming language
  • Platform independent: can run on any device supporting Java
  • Robust security features
• Java Syntax:
  • Variables: declare with type variable_name (e.g. int x)
  • Data types: primitive (e.g. int, double), reference (e.g. String), array
  • Operators: arithmetic, comparison, logical, assignment
• Java Classes and Objects:
  • Classes: define properties and behavior of objects
  • Objects: instances of classes
  • Constructors: special methods used to initialize objects
• Java Inheritance:
  • A child class can inherit properties and behavior from a parent class
  • extends keyword used to inherit from a parent class

Testing

• Types of Testing:
  • Unit Testing: tests individual units of code
  • Integration Testing: tests how units of code work together
  • System Testing: tests the entire system
  • Acceptance Testing: tests if the system meets requirements
• Testing Methods:
  • Black Box Testing: tests without knowledge of the internal workings
  • White Box Testing: tests with knowledge of the internal workings
  • Gray Box Testing: tests with partial knowledge of the internal workings
• Test Case Design:
  • Equivalence Partitioning: divide input into partitions and test each
  • Boundary Value Analysis: test at the boundaries of input partitions
  • State Transition Testing: test the different states of a system

Test your knowledge of computer networking concepts, Java programming basics, and software testing principles. This quiz covers network types, topologies, and protocols, as well as Java syntax, classes, and inheritance. Additionally, it touches on various testing methods and techniques.