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!"
Cellular Network
Cellular networks are the type of wireless WAN technologies. Cellular networks provide services to connect users and remote locations where no other WAN access technologies are available. Millions of users use their smartphones and tablets to email, surf the web, download apps, and watch videos. We can easily connect computers, laptops including routers with the...
Wireless internet
Wireless internet uses wireless connectivity via radio waves instead of wires on a personnel computer, laptop, smartphone etc. Initial wireless technologies lack the high speed of broadband internet connection e.g cable and DSL, but the latest wireless technologies cover the gap. Wireless Internet service providers (WISP) typically provide wireless internet services to home users and...
Cable Internet
Network and Internet Access through Cable TV is a type of broadband internet access that uses the resources of the television cable system. It provides network edge connectivity from the internet service provider (ISP) to an end-user of the internet services in the same way as DSL and fibre to the home (FTTH) provides. Cable...
What is VSAT?
VSAT is the abbreviation of Very small aperture terminal. It is important WAN technology for both home users and organizations; they needed connectivity in remote areas where there is no possibility of fiber optic, copper cable and microwave. It is the solution that creates a private WAN using satellite communications. A VSAT contains is a...
MPLS
MPLS is the abbreviation of Multiprotocol Label Switching. It is a WAN protocol that sends data from one router to another router, based on short path labels rather than IP network addresses. It was created from 1994 to 1999 as an alternative to Internet Protocol (IP) routing. It was the more effective alternative to multilayer switching...
Ethernet WAN
Ethernet was initially considered not suitable as a WAN access technology because of the maximum cable length supported was only up to a kilometre. However, newer Ethernet standards with fiber optic have made Ethernet an important WAN option. For example, the IEEE 1000BASE-ZX standard supports up to 70 km of distance. Ethernet WAN provides high-bandwidth...
What is ATM?
ATM is the abbreviation of Asynchronous Transfer Mode. It is using time-division multiplexing (TDM) for data communications. It is capable of transferring voice, video, and data through private and public networks. ATM is working on a cell-based architecture in place of frame-based architecture. The size of the Asynchronous Transfer Mode cell is fixed to 53...
What is Frame Relay? Exclusive Introduction
Frame relay is a packet-switching telecommunication service designed for interconnecting enterprise LANs. Being a student of networking, it is important that you know about all the emerging WAN technologies. To stay up-to-date with emerging and developing technologies, you may know the following alternate options available for WAN connectivity. Frame Relay Broadband DSL Broadband cable modem...
ISDN
ISDN stands for Integrated Services Digital Network. It is a circuit-switched technology using the local loop of a PSTN to carry digital signals. It can transmit both data and voice over a digital line. It is a set of communication standards, which can transmit data, voice, and signalling. ISDN connections provide better speeds and higher...
Dialup
Dialup is a WAN connection technique established using a modem and Active PSTN line. The modem dials a number attached to another computer at the destination end and establishes a connection capable of transferring data. The modem and telephone lines work as a data transfer medium. Usually, a dial-up connection is used as a connectivity...