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Diploma in Computer Networking - Revised

Network and Security
Free Course
The course Diploma in Computer Networking introduces LANs and WANs, and introduces you to the network architecture and protocols used in security.
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  • Duration

    6-10 Hours
  • Assessment

  • Certification

  • Responsive

  • Publisher

    Channel 9




View course modules


This course first introduces you to the key devices found on Local Area Networks (LANs) such as routers, switches and hubs. You will learn about how they allow for efficient communication on the LAN. The course then discusses IP addresses and how they are broken down into Host ID and Network ID components. It then goes on to explain the seven different layers of the OSI Model. You will learn about the function and structure of the layers and how data is through them to allow for device communication. You will contrast and compare the function and structure of IPv4 and IPv6 addresses and will learn about DNS server computer and the Default gateway.The course introduces you to TCP/IP tools such as ipconfig, ping and command prompt. More advanced TCP/IP tools such as Netstat, Pathping, Nslookup, Telnet, NbtStat and Netsh are also investigated.

Next, you will learn about the Dynamic Host Configuration Protocol; a client/server protocol which enables certain computers to obtain IP addresses automatically. This is a protocol within the TCP/IP suite that authenticates and encrypts IP packets. You will learn about Routing which is the managing of data flow between routers or hosts. You will look at common dynamic routing protocols such as Link state routing (Open Shortest Path First (OSPF)) and Distance vector routing (Routing Information Protocol (RIP)). You will then look at Firewalls, the most commonly used type of security device in an organization's perimeter. You will learn about how they protect networks from unwanted intrusions and malicious attacks.

Finally, you will learn about the Network Intrusion Detection System (NIDS), and the Network Intrusion Prevention System (NIPS) which can redirect, detain or remove malicious traffic. This course will be of great interest to anyone who would like to learn more about computer networking. It would also be suitable for those considering doing professional computer networking exams.

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Learning Outcomes

Having completed this course you will be able to:

  • Explain how Hubs, Switches and Routers function.
  • Describe how Ethernet functions.
  • Describe the structure and function of IP Addresses.
  • List the seven layers of the OSI Model.
  • List the four layers of the TCP Model.
  • Describe the structure and function of twisted-pair cable.
  • Define the terms attenuation and interference in relation to networking.
  • Describe the structure and function of wireless networks.
  • Describe the structure of Internet Protocol addresses.
  • Describe the role of the Default gateway and DNS server in networking.
  • Describe Wide Area Networking Technologies.
  • Describe the features and functions of VPN protocol.
  • Explain the different types of Network security systems.


All Alison courses are free to enrol, study and complete. To successfully complete this Diploma course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Diploma course, you have the option to acquire official Certification, which is a great way to share your achievement with the world. Your Alison Certification is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive to you to continue empowering yourself through lifelong learning

Alison offers 3 types of Certification for completed Diploma courses:

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Course Reviews

3 weeks ago

5 stars and I accept

Mya M.
4 weeks ago
Mya M.

Thank for everything . Get a lot knowledge..

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