Although no guarantee, qualifications show both the employer and the employee a degree of commitment.

A recent reader inquiry seemed clear enough: "What program would you recommend for computer system service?" I suggested using Smith Micro Software CheckIt for its suite of comprehensive hardware diagnostics and Symantec's Norton SystemWorks for anti-virus and drive repair utilities. The reader's request, however, was not for software programs but for a training program appropriate for someone seeking employment in the computer service field.

Information Technology comprises jobs appropriate for those with a wide variety of backgrounds and training. Certification adds instant credibility to job aspirants. Hiring managers can be comforted by the knowledge their candidates have demonstrated some mastery of system support techniques.

People aspiring for entry-level computer service technician positions should look at a nationally recognised program that attempts to qualify their abilities. CompTIA's A+ certification program is a vendor neutral test that enjoys wide recognition thanks to its comprehensive requirements for passage. While there are no guarantees that those passing examinations will truly be proven competent, A+ does signify that someone has made a commitment to learning the necessary skills.

I find A+ certification laudable for its attention to both hardware and software troubleshooting. The best service technicians should understand the hardware they support. While relative amateurs can master software troubleshooting techniques, application installation, and similar tasks, it requires additional skills to work with a computer's cover off. Good support technicians are equally adept when tweaking the Windows Registry or wielding a screwdriver. Software and hardware expertise are complimentary.

A+ training is available from a variety of sources, including traditional training centers, books, interactive CD-ROMs, and Web based learning. I have even visited high schools that offer A+ classes to students.

CompTIA extends basic A+ certification with more complex topics. Network+, Linux+, and Server+ are designed for those who want to tackle more demanding jobs. For example, Server+ certification investigates RAID and multiprocessing technologies appropriate for anyone supporting advanced server hardware.

Vendors such as Microsoft, Novell, Compaq, and others helped design CompTIA's various certification programs. Indeed, passage of Network+ or A+ fulfills some of the requirements for vendor-specific certifications such as Novell's CNE.

Cost for certification testing for A+ is approximately $130. More advanced examinations for other certifications are $190. Corporations seeking to certify many employees can take advantage of volume and other discount programs. Instructor led training will be the most expensive training option. Some programs concentrate strictly on passage of the A+ certification and can be completed in anywhere from three to seven days. Wave Technologies International offers a five day 40 classroom hour course for $1795. Boston University Corporate Education Center charges $8900 for an extremely comprehensive 438 total classroom hours Desktop Support Specialist curriculum. Tests are available in a variety of languages, including Japanese, Spanish, and German. CompTIA claims that more than 250,000 people have obtained the A+ designation worldwide.

While certification can act as a "stamp of approval" for a candidate, there are still other factors to consider when pursuing a technical support position. An ability to work well with others, a desire to learn, and simple mechanical aptitude are all important. Be prepared to demonstrate a variety of skills to complement any certification you receive.

Copyright © 2009 CBS Interactive, a CBS Company. All Rights Reserved.
ZDNET is a registered service mark of CBS Interactive. ZDNET Logo is a service mark of CBS Interactive.