Course Overview

“A good knowledge of networking will be a great stepping stone to having an exciting career in Networking.”

You will get an extensive overview of all the key components of a computer network. This Diploma course will teach you the skills needed to support Network devices in a modern IT environment and enable you to study other fields such as Cybersecurity.

Why Networking?

  • Average Network Engineer salary is €67k
  • There is currently an ICT skills shortage, not only in Ireland but across Europe,
  • The network professional will always be in high demand

Our daily lives rely increasingly on connectivity, we live in the world of The Internet of Things. It is vital that we know how to use this technology in a secure manner. We need to understand how this technology works and be able to identify the potential threats involved when we use it. Furthermore, there are more and more exciting careers available in the Networking world. Why not pursue a career in the exciting and evolving field of Networking?

This course will take the student through every step taken in order to configure and secure the typical devices used in the process. On completion of this course the student will have sufficient knowledge and skills to be able to embark on a career in Networking.

*This module is also a module on the level 7 Cybersecurity course offered by City Colleges.

Course Modules

In this course we will cover:

  • An Introduction to Networking
  • OSI Model and the TCP/IP protocol suite
  • Analysis of Network Protocols and their roles – TCP/IP, ARP, DHCP, DNS, NAT
  • Use of Wireshark software in analysing network traffic
  • Network Devices and their configuration
  • Securing network devices.
  • Network Security Infrastructure – IPS, IDS, Firewalls, SNMP
  • Types of Attackers and their tools
  • Wireless devices and their security
  • Security Technologies and Protocols – NTP, Syslog, DNS, HTTPS
  • Encryption using symmetric and asymmetric keys
  • Hash functions and Digital signatures
  • Building and securing a small network

Learning Outcomes

Having completed this course, the student will be able to configure and secure the key components of a modern network, including PCs, routers, and switches. The student will be able to identify the potential threats posed when accessing and using Information Technology Systems.

Course Award

A City College’s Professional Diploma Course is a focused, practical programme designed and delivered by an industry practitioner, that consolidates, upskills or reskills learners in a professional area. They are stand-alone qualifications that indicate that you have been trained in a particular area or specific subject matter.

City College Diplomas are suitable for career minded learners wishing to advance their professional skills and prospects. They are widely accepted by employers and many students are sponsored to study here by their organisation.


John Sexton is a Chartered Engineer Electronic Engineering. He has been a Cisco CCNA instructor for 15 years. He holds a Master’s degree in Engineering from DCU, obtained in 1998.

John originally worked in the Telecoms sector before moving into Network Engineering in the nineties.

In 1998, he joined the lecturing staff in the Institute of Technology Tallaght, now part of the Technological University of Dublin. He lectured in Network Engineering for 18 years. In this time, he designed and delivered Networking modules at NFQ levels 6, 7 and 8. He has also delivered the CCNA Routing and Switching course for over 10 years.

He is currently a visiting lecturer for the Université de Toulouse II Jean Jaurès.

He has acquired a lot of experience teaching groups of varying levels of education.


Contact Us

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on demand
Live online training with real-time instructor-student interaction
  • Live & fully online
  • Archived for review
27th September 2022
live online
Live online training with real-time instructor-student interaction
  • Live & fully online
  • Archived for review
27th September 2022
10 weeks, 1 evening per week from 6.30 to 9.30pm GMT

Related Courses

Diploma in Cybersecurity Introduction

Diploma in Data Protection

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