This particular field is one of the largest and most all-encompassing areas in the field of IT. Generally, some degree of specialisation is required, since to cover each component could take too many years of learning. The chief systems players in this marketplace are Cisco & Microsoft. MS produce Network and Server software, whilst Cisco concentrate primarily on the hard-ware end of networking: Routers, data switches, controllers and so forth. It's become commercially essential for both Microsoft and Cisco to get into Security over the last several years. We should likewise take note of the greater professional use of Wi-Fi now, which is essentially wireless-connections and hard-ware. And then we come on to Hacking (legally) & Digital Forensics - both of which are complex & very specialist subjects themselves, and take a considerable amount of experience and understanding.

Computer (or Digital) Forensics is relatively new to the picture - TV shows like 'Crime Scene Investigation' may have made us aware of it. There may well however be a bit less glamour to the real workload than that carried out by the actors on TV! But for many, it provides a very interesting and rewarding career within technology-based investigation. The work entails seeking & interpreting 'digital-footprints' to assist with data recovery or legal enquiries.

Along with Security & Computer Forensics the to some extent new role of Ethical-Hacking is emerging. Experienced IT professionals can study the principles of 'criminal' hacking for legitimate ethical security reasons. The EC Council offers mid to high level accreditations, entitled the CEH ('Certified Ethical Hacker') & the 'CHFI' ('Computer Hacking Forensic Investigator').

There are now wider options over and above Cisco & Microsoft to become certified in these areas. In fact, some highly respected associations have become essential contributors now where accreditation is concerned. The essential knowledge of network-interface-connectivity between and among networks is now becoming increasingly more important. There are right now some fundamental shifts occurring in networking - notably the movement towards Cloud or Internet based computing (in terms of data storage, and processing power), & the mental attitude shift toward green IT. The development of 'green' I.T. addresses 2 essential aspects : reducing the effect on the planet is one, but perhaps of equal significance to business is expense. Lower power processors and computer systems produce much less heat, therefore less cooling is necessary. These two things together vastly cut down the energy expenditure, & therefore impact upon a company's bottom-line -- particularly in data-centres and high-volume processing departments.

The vendor-neutral worldwide institution 'CompTIA' now delivers perhaps the most recognised & widely-respected impartial IT qualifications. Companies such as 'ISC2' provide security certifications, and CWNP supply specialised wireless networking paths. Needless to say, there's a whole slew of accreditation sets from Cisco & Microsoft. With the amount of training & career options available in this sector, it is a good idea to get more in depth guidance from an experienced professional prior to choosing your particular course. You could possibly save a good deal of time and money, not to mention frustration & disappointment.

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