This area of I.T. is possibly just about the most sweeping & extensive there is. Generally, some level of specialisation is needed, since to cover each component would probably take decades of studying. The main systems players in this marketplace are Cisco and Microsoft. The software program side of networks is MS's department, & the hardware side (routers, controllers & data switches etc.) is where Cisco primarily works. 'Security' has grown to be a huge problem in recent years, which has led each of the vendors to move in to the area in a massive way. We also needs to notice the the more professional use of WiFi today, which is basically wireless connections & hardware. And finally, 2 very important & developing fields within the Security market are Digital Forensics and Ethical Computer Hacking.

Industry-acknowledged accreditations can be attained from both the suppliers and vendor neutral companies. Several well respected neutral organisations are now offering increasingly more relevant & significant accreditations. The essential knowledge of network interface connectivity between and within networks is now becoming increasingly important. Networking is in fact going through some significant paradigm shifts right now; notably the movement towards 'cloud' or Internet based computing (regarding data storage, as well as processing-power), and the attitude shift towards 'green' I.T.. The development of green I.T. covers two essential aspects : minimising the impact to the environment is one, but perhaps of equal or more significance to industry is expense. Computers will generate much less heat (and so require less cooling) when they have lower-powered processors. Businesses with significant computer networks can bring down their energy expenditure appreciably with 'greener' and much more efficient computer systems.

MS provide various specialisations within MCSE, such as in Security or in Messaging for all those with a particular interest. It might be that CompTIA Security+ meets your needs, so that you can move onto the 'CISSP' - Certified Information Systems Security Professional. Before you choose this track though you ought to be conscious of the amount of professional experience needed for the 'CISSP'. Our advice is always to have an educated discussion prior to beginning any new career training.

A number of the best industry-acknowledged accreditations today are produced by the vendor neutral 'Computing Technology Industry Association' (CompTIA). Various other establishments also provide worthy accreditations, like CWNP (Certified Wireless Network Professional) & ISC2 ('International Information Systems Security Certification Consortium'). Needless to say, there is a whole gamut of certification sets from Microsoft & Cisco. Because of the range and amount of certification paths on offer in this field, its a good idea to discuss this sort of change of career with an experienced advisor. Without individually-tailored advice you could head-off in the wrong-direction and squander considerable time and/or money.

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