Author: Asad Ijaz

NetworkUstad's lead networking architect with CCIE certification. Specializes in CCNA exam preparation and enterprise network design. Authored 2,800+ technical guides on Cisco systems, BGP routing, and network security protocols since 2018. Picture this: I'm not just someone who writes about tech; I'm a certified expert in the field. I proudly hold the titles of Cisco Certified Network Professional (CCNP) and Cisco Certified Network Associate (CCNA). So, when I talk about networking, I'm not just whistling in the dark; I know my stuff! My website is like a treasure trove of knowledge. You'll find a plethora of articles and tutorials covering a wide range of topics related to networking and cybersecurity. It's not just a website; it's a learning hub for anyone who's eager to dive into the world of bits, bytes, and secure connections. And here's a fun fact: I'm not a lone wolf in this journey. I'm a proud member and Editor of Team NetworkUstad. Together, we're on a mission to empower people with the knowledge they need to navigate the digital landscape safely and effectively. So, if you're ready to embark on a tech-savvy adventure, stick around with me, Asad Ijaz Khattak. We're going to unravel the mysteries of technology, one article at a time!"
May 5, 2025

You Won’t Believe These Magical Train Rides Exist in Sri Lanka

There’s something inexplicably enchanting about train journeys, especially when they take you through emerald hills, misty mountains, lush tea plantations, and cascading waterfalls. In Sri Lanka, a country celebrated for its natural beauty and cultural richness, train rides are far more than a means of transport — they’re immersive experiences that etch lifelong memories. You […]
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May 5, 2025

5 Maldives Adventures That Are Way Better Than Just Sunbathing

When you think of the Maldives, it’s easy to imagine endless days of relaxing on soft sandy beaches under the golden sun. But beyond the postcard-perfect images, the Maldives offers a world of adventure that goes far beyond just sunbathing. Whether you’re a thrill-seeker or someone who loves exploring nature’s hidden gems, there’s something in […]
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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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Secure DICOM technology safeguarding patient data in medical imaging.
Technology April 29, 2025

Secure DICOM: Protecting Patient Data in Medical Imaging

In the rapidly evolving healthcare landscape, medical imaging plays a crucial role in diagnosis and treatment planning. Behind these vital images lies DICOM (Digital Imaging and Communications in Medicine), the international standard for medical images and related information. While DICOM has revolutionized healthcare by enabling the seamless sharing of diagnostic images, it also presents significant […]
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Hand holding a smartphone displaying a proxy provider app with the text "Get started.
Technology April 29, 2025

Coronium.io: The 4G Mobile Proxy Marketplace Changing the Game

When most people think about proxies, they picture slow, unstable connections — and a maze of shady providers. Coronium.io is flipping that image on its head. Built by tech professionals who understand both the power and the pain points of proxies, Coronium.io is a 4G mobile proxy marketplace designed for reliability, transparency, and real-world performance. […]
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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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Illustration of different types of network connecting devices worldwide.
CCNA April 27, 2025

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 […]
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