Category: CCNA

Cisco Certified Network Associate certification resources

Illustration comparing Telnet vs SSH remote access protocols, showing a client and server with a lock for SSH and an unlocked symbol for Telnet over a network path.
CCNA May 25, 2025

Telnet vs. SSH: A Comprehensive Comparison of Remote Access Protocols 2025

This article explores Telnet vs. SSH, two protocols for remote access to devices and systems, comparing their security, functionality, and modern relevance. Whether you’re managing network devices, debugging services, or securing remote connections, understanding these protocols is essential. Use the table of contents below to navigate to specific sections. Telnet Protocol Overview Telnet is a...
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A futuristic digital background with a prominent 6G network symbol, featuring blue and white geometric patterns.
CCNA May 25, 2025

The Future of Connectivity: A Comprehensive Guide to 6G Networks

The evolution of wireless communication has been a cornerstone of technological progress, transforming how we connect, communicate, and interact with the world. From the analog simplicity of 1G to the high-speed, low-latency capabilities of 5G, each generation of wireless networks has pushed the boundaries of what’s possible. As 5G continues to roll out globally, the...
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Illustration of physical media and networking cables with a laptop showing a Wi-Fi symbol and the text "Quiz Test."
CCNA May 24, 2025

Quiz Test Types of Physical Media and Networking Cables

Ready to test your networking knowledge? Take the Quiz Test – Types of Physical Media and Networking Cables now and see how well you know your cables and Media! Challenge yourself, learn something new, and share your score with friends. Click here to start: Take the Quiz! #NetworkingNinja #TechQuiz Loading Bar Example . CCNA Practice...
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A person using a laptop with a Wi-Fi symbol on the screen, surrounded by images of network cables and a communication tower.
CCNA May 21, 2025

Comprehensive Guide to Types of Physical Media and Networking Cables

Want to build rock-solid networks? Start with the cables. Network physical media are the highways for data. They connect our computers, routers, switches, and servers in the digital world. These transmission channels operate in the Physical Layer. This is the first layer of the OSI framework. They fall into two main types: guided systems that...
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Illustration comparing bandwidth and throughput using highway lanes filled with cars to represent data flow, showing full lanes for bandwidth and partial lanes for throughput.
CCNA May 18, 2025

Bandwidth vs Throughput: Understanding the Key Differences in Networking

In today’s digital world, terms like bandwidth and throughput are frequently used in networking, but they’re often misunderstood or used interchangeably. Whether you’re streaming a 4K video, managing a cloud-based application, or setting up a local network, understanding the distinction between bandwidth and throughput is crucial for optimizing performance. This article dives deep into their...
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Diagram of the Physical Layer in the OSI Model showing data transmission between Datalink Layers.
CCNA May 12, 2025

Physical Layer (Layer-1) of OSI Model

The Physical Layer is the lowest layer of the OSI Model. It provides the resources to transport the bits that comprise a data link layer frame across the network media. This layer accepts a complete frame from the data link layer and encodes it as a series of signals transmitted to the local press, as shown...
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Comparison between TCP/IP and OSI Models
CCNA May 11, 2025

Comparison between TCP/IP and OSI Model

Comparison between TCP/IP and OSI models is critical because protocols that make up the TCP IP protocol suite can also be described in terms of the OSI reference model. The network access layer and application layer of the TCP IP models are further divided, and the OSI model describes discrete functions that must occur at...
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Diagram comparing OSI layers with TCP/IP layers.
CCNA May 2, 2025

A Guide to the TCP/IP Model and Protocol Suit

In 1970, the Defense Advanced Research Projects Agency (DARPA) began working to create an open standard network model known as the TCP/IP Model. Subsequently, by 1985, the TCP/IP model started gaining more importance and support from vendors, ultimately replacing the OSI model. The Internet Engineering Task Force (IETF) maintains the TCP/IP model and related protocols. The TCP/IP model was on the...
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A detailed diagram showing data encapsulation and de-encapsulation processes, with labeled layers from Application (Layer 7) to Physical (Layer 1) for both sender and receiver.
CCNA April 28, 2025

Understanding Data Encapsulation and Decapsulation in OSI Layers: A Comprehensive Guide With Simulator Updated 2025

Data encapsulation and de-encapsulation are crucial for transmitting information across computer networks. Encapsulation involves wrapping data in a specific format before sending it over the network, ensuring it can traverse various communication mediums and reach its destination intact. On the other hand, de-encapsulation is the process of unwrapping and extracting the original data at the...
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OSI Model
CCNA April 27, 2025

OSI Model, including its 7 Layer Introduction

As the importance of computers grows, vendors recognize the need for networking with them. They produced a variety of protocols whose specifications were not made public. Hence, each vendor had different ways of networking computers, and these ways were not compatible with each other. This means that the computers of one vendor could not be...
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