Introductory description

This module will enable students to understand computer networks, from the physical connection through to application protocols, as well as the differences between various models and the reasons for these differences. It will also allow them to describe how network technologies affect bandwidth and latency, and the impact these may have on applications.

Module aims

Outline syllabus

This is an indicative module outline only to give an indication of the sort of topics that may be covered. Actual sessions held may differ.

This module will teach students about:

• The principles of communication protocols
• The internet architecture and layered TCP/IP networking models
• Link, network, and transport layer principles and functions
• Client-server applications and programming
• Peer-to-peer systems, their design, and the value of decentralisation
• Network security
• Distributed transactions
• Distributed algorithms
• Web services

Learning outcomes

By the end of the module, students should be able to:

• Demonstrate knowledge and understanding of internet architecture and the layered TCP/IP model.
• Understand client-server and peer-to-peer application models.
• Develop networked applications in a client-server model.
• Understand issues in distributed systems (including interaction, failure, and security).
• Understand the importance of and requirement for synchronisation in distributed systems.
• Understand and provide solutions to distributed algorithms for mutual exclusion, leader elections, and consensus.
• Consume Web services to create networked applications.
• Understand how some basic attacks (e.g. DDOS) are performed and steps that may be taken to mitigate them, alongside appreciating the general need for network security.
• Demonstrate the value of networked applications in the workplace.

Indicative reading list

Tanenbaum, A. and Wetherall, DJ, "Computer Networks" (2010)
Colouris, Dollimore & Kindberg, "Distributed Systems - Concepts and Design" (2011)

Subject specific skills

• Manage the development and assurance of software artefacts applying secure development practises to ensure system resilience
• Can plan, design and manage computer networks with an overall focus on the services and capabilities that network infrastructure solutions enable in an organisational context
• Identify network security risks and their resolution.
• Common vulnerabilities in computer networks including unsecure coding and unprotected networks

Transferable skills

• Have demonstrated that they have mastered basic business disciplines, ethics and courtesies, demonstrating timeliness and focus when faced with distractions and the ability to complete tasks to a deadline with high quality.
• Flexible attitude
• Ability to perform under pressure
• A thorough approach to work