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Asad Ijaz

My Name is Asad Ijaz Khattak and I am the writer and blogger, known for my website "". I have writes about various topics related to technology, networking, and cybersecurity. I am also a Cisco Certified Network Professional (CCNP) and Cisco Certified Network Associate (CCNA). I have written several articles and tutorials on the website which can be used as a learning resource for people interested in networking and cybersecurity. I am the member and Editor of Proudly Team NetworkUstad


  1. Client-Server and Peer-to-Peer Network Model » Networkustad
    August 7, 2019 @ 5:56 pm

    […] who is responding to the request is called a server. The Client-server processes are working in the application layer. The client device starts the connection by requesting data from the server, the server can either […]


  2. File Transfer Protocol (FTP) » Networkustad
    September 21, 2019 @ 2:24 am

    […] transmitting files between computers on the Internet over TCP/IP connections. It is an application layer protocol. It was first created in 1971 to transfer data between a client and a server. To use this […]


  3. OSI Model including its 7 Layer Introduction » NetworkUstad
    May 22, 2021 @ 9:45 pm

    […] When it needs to fetch a web page, it uses the HTTP protocol to send the request and receive the page contents.  This protocol resides at the application layer used by an application such as IE or FF to get web pages from web servers across the network. On the other side, the web server application such as Apache or IIS interacts with the HTTP protocol on the Application layer to receive the HTTP request and send the response back. Read More […]


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