Computer networks have revolutionised every aspect of our lives, be it communication, education, entertainment, health or social networking. Computer networks are the basis on which tools and technologies such as the Internet and the Web, mobile computing and communication, and cloud applications have been built. Nowadays, computer networks are ubiquitous and play a pivotal role in all areas of both public and private sectors. It is therefore not surprising to see that computer networks specialists are highly sought after by the industry.