CCNA
Cisco Certified Network Associate certification resources
Networking Essentials: Spotlight on the 6 Types of Network
We can characterize 6 types of networks with the size of the area covered, the number of users connected, the number and types of services available, and the area of responsibility. The most important and famous kinds of networks are: Local Area Network (LAN) It is the first and most important part of networks. It...
What is a Network? – Exclusive Definitions
Before starting Cisco Internetworking, the network introduction is important for the networking student to be aware of “what a network is” and “what network is importance themselves”. So, first of all, what is a network? In simple words, It is a collection of interconnected devices (such as computers, printers, etc.) in such a way that they...
Comparing Switch and Router: A Comprehensive Guide
The Switch and Router comparison is most important because both are the backbone devices in computer networking. So, I am comparing Switches and Routers for networking students. If someone understands the Switch and Router comparison, he can easily manage a network. Definition of Router A router is a Layer 3 (Network Layer) device that forwards data packets between distinct...
3 Basic Network Component – Exclusive explanation
Any network infrastructure contains three components: devices, Media, and Services. Moving data from source to destination can be as simple as connecting one device to another. Note:- At the end of this article, the assessment test is waiting for you about the Basic network Components Devices and media are the physical network components, also known...
IPv6 Multicast Addresses Explained: Structure, Types, Examples, and Use Cases
I have already written about IPv6 multicast addresses in my previous article. IPv6 multicast addresses work similarly to IPv4 multicast addresses. IPv6-enabled devices can join and listen for multicast traffic on an IPv6 multicast address. Multicasting is one of the powerful features of IPv6 addresses, which enables one-to-many communication, optimizing bandwidth for applications like video...
Global IPv6 Unicast Addresses Configuration
Configuring global IPv6 addresses can feel difficult, but don’t worry—you are at the right place, and we will guide you step by step. Whether you’re a beginner setting up your first IPv6 network or a pro looking to refine your skills, this guide covers everything. We’ll break down the three main methods—manual configuration, Stateless Address...
Router Advertisement (RA) Messages
Router Advertisement (RA) messages are a cornerstone of IPv6 networking, allowing routers to broadcast their presence and share critical configuration details with devices on the network. This guide provides an in-depth exploration of RA messages, their structure, and their role in IPv6 networks—perfect for network professionals and enthusiasts aiming to master IPv6 configuration. What Are...
Special-Purpose IP Addresses – IPv4 and IPv6 (Updated April 2025)
IP addresses are the backbone of network communication, but not all IP addresses are created equal. Some are reserved for special purposes, serving unique roles in networking, from local testing to private networks and multicast applications. As of April 2025, with IPv6 adoption surpassing 70% of global internet traffic (per industry estimates), understanding both IPv4...
Classful vs. Classless IP Addressing: A Deep Dive into Networking Evolution
IP addressing is the backbone of modern networking, enabling devices to communicate across local networks and the internet. Every device—whether a smartphone, server, or IoT sensor—requires a unique IP address to send and receive data. However, the original IP addressing system ( classful addressing ) struggled to scale with the internet’s explosive growth. This led...
IPv6 Address Types Explained: Unicast, Multicast, Anycast Guide for 2025
What are the IPv6 address types? This is the main topic of our comprehensive guide. My previous articles discussed IPv4 address classes, classless and classful addressing schemes, and special-purpose IP addresses. We have also learned about unicasting, multicasting, and broadcasting in IPv4 addresses. Similarly, IPv6 addresses also contain different types, such as unicast addresses, multicast...