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Asad Ijaz

Hey there, I'm Asad Ijaz Khattak, and I'm not your typical writer and blogger – I'm the voice behind the scenes at the renowned website, "" When it comes to the digital realm, I'm all about technology, networking, and cybersecurity. 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!"


  1. Carrier Sense Multiple Access (CSMA) - Networkustad
    June 2, 2019 @ 11:57 am

    […] Sense Multiple Access/Collision Detection (CSMA/CD); is the most widely used transmission method in half-duplex Ethernet networks.  On Ethernet, any device can attempt to send a frame at any time. Each device […]


  2. Duplex and Speed Settings on Switch - Networkustad
    June 5, 2019 @ 6:25 pm

    […] Duplex and Speed settings are the most basic settings for each port of a switch. By default, Cisco switches will auto-negotiate the speed and duplex settings. There are possibility of mismatching of duplex and speed setting between the switch port and the connected devices for example a computer or another switch. There are two types of duplex settings used for communications on an Ethernet network. Full-duplex communication both ends of the connection can send and receive simultaneously but in the half-duplex only one end of the connection can send at a time. […]


  3. Network Interface Card (NIC) and Ethernet Protocol » Networkustad
    August 29, 2019 @ 3:04 pm

    […] uses in half-duplex Ethernet LANs to detect and resolve collisions. Today’s Ethernet LANs use full-duplex switches, which allow multiple devices to send and receive simultaneously with no […]


  4. David Mullane
    August 18, 2020 @ 7:36 am

    You have shared a great article to understand all three types of Transmission Modes. Comparison shown in the article is really of a great knowledge and I would love to share it further. Thanks and keep sharing!!!


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