Diploma in Introduction to Computer Networks

Reliable networks are mission critical to businesses

11 Weeks part-time, one evening, 6.30 pm - 9.30pm
Start Date:
10th June
Reference Code:
Normal Price:

Why Computer Networks?

The main goal of this course is to provide students with a comprehensive understanding of network technologies, concepts and terminology. This course is an introduction to the structure, components, functions and services of computer networks, including current protocols, technologies, and performance issues. 

You will learn about the equipment and technologies used in LANs, network topologies used today, and network designing with these topologies. A variety of network equipment will be discussed (including hubs, routers, and switches), all major LAN protocols will be covered (including TCP/IP). You will learn about the OSI layered communications model, and will understand the daily tasks involved with managing and troubleshooting a network.

Course Overview

At the end of this course, students will be able to:

  • Define the purpose of network analysis
  • Define various protocol settings
  • Define the purpose of Wireshark
  • Describe how wireshark processes packets
  • Analyze routed and wireless networks

What is a Professional Diploma?

An IBAT Professional Diploma is a focused, short duration practical course that consolidates, upskills and/or reskills learners in a professional area. They are stand-alone qualifications  that do not lead to an award on the National Framework of Qualifications (NFQ).

Course Content

Introduction to Networking

  • Networking connection
  • Network extension
  • Network topologies
  • Protocols
  • Programs and processes
  • Protocol layering concepts
  • Encapsulation and decapsulation

OSI Model

  • Layers
  • Interfaces


  • TCP/IP model
  • TCP/ UDP in dept
  • DNS fundamentals
  • HTTP fundamentals
  • DHCP fundamentals

Network appliances

  • Relays and repeaters
  • Bridges
  • Routers
  • Gateways
  • Hubs
  • Switches
  • Network management
  • Firewall

Network sniffers & analysis

  • Basics of packets
  • Packet and sniffing techniques
  • Network monitors

Wireshark software

  • Introduction to Wireshark
  • Compare wireshark release and development versions
  • Report a wireshark bug or submit an enhancement
  • Capture packets on wired or wireless networks
  • Describe how wireshark processes packets
  • Define the elements of the start page
  • Navigate wireshark’s main menu
  • Use the main toolbar for efficiency
  • Make the wireless toolbar visible
  • Access options through right-click functionality
  • Define the functions of the menus and toolbars


The programme is assessed by on-going quizzes.  There is no formal exam.

Why IBAT College?

Career Potential
Maximise your career potential as you remain working while obtaining a professionally relevant, career enhancing, qualification at the same time.

Excellent Lecturing Staff
Learn from friendly and highly qualified academic staff, with industry experience, in small class-sizes, and guest lecturers who are experts in their fields.

Student Experience
Being part of a culturally diverse student nationality mix at IBAT College Dublin, with learners from over 30 different countries, gives you the opportunity to learn culturally different working methods first-hand, and the fundamentals to succeed in a globally connected network once you graduate.

City Centre Location
With our campus located in Dublin city centre, in Temple Bar, you are close to all major transport hubs making it easy to attend classes in between work and home.

Programme Material
Printed course notes are supplied for the first lecture. All subsequent notes are then available to download/view/print through the student virtual learning (Moodle) platform.

Career Opportunities

Those who successfully complete the programme can explore related programmes in our Professional Diploma suite, or seek an industry position.

Entry Requirements

This course is intended for those with no computing background who want to integrate into the high-tech industry.  However, applicants should have a high level of technical literacy and evidence of willingness to integrate into the world of computing.

How to Apply

Don’t miss out because you’re unsure.

You can contact or apply to us directly using the the "Contact Us" or "Apply Online" options below, this will reserve your place and also give us the key details to start your application, a member of our admissions team will then contact you with further details, or alternatively you can simply "Ask us a Question" using the form below.

You can also "Book a One-to-One" with one of our course specialists who will provide you with additional guidance on your application, you can set up a meeting by:

  • Calling us at:  +353 1 8075 055 
  • Email us at:  This email address is being protected from spambots. You need JavaScript enabled to view it.  

We also have flexible payment plans, please contact us to discuss your options or visit the college anytime and our course specialists will be more than willing to discuss any queries you may have.

We look forward to meeting you.

Apply now to reserve your place.

Contact us and one of our course specialists will be able to speak to you one-on-one about your needs by phone, email or in person.

Question? Ask us.

Discuss your needs with one of our course specialists.

Student Benefits

Discover the additional support services and facilities we have to help you thrive; from IT Labs, a Career Service, Networking Evenings and more..

Part-time Courses

IBAT offer a range of part time courses in the areas of Business, Management, Marketing, Finance and ICT.

Take the first step

Contact us and one of our course specialists will be able to speak to you one-on-one about your needs by phone, email or in person.