What a certification can and cannot do
An IT certification is a credential, usually earned by passing an exam, that shows you have reached a defined level of knowledge in some area. Providers and professional bodies issue them, and there are very many, from general beginner credentials to narrow technical ones.
A certification can help in several ways. It may get a resume past an automated or non-technical first screen, give you a structured way to learn, or satisfy a requirement that an employer or contract has set. It cannot prove you can do the job, and it does not replace hands-on experience. Many hiring managers say, in general terms, that they weigh demonstrated skills more heavily than a list of credentials, although practice varies a lot between employers.
This article deliberately names no specific certification. Offerings change, vary by country and age quickly, so it is more useful to learn how to judge any of them.
Start with your goal
Credentials make sense only in relation to something you want. Ask yourself:
- Am I trying to get my first IT job, move up, change specialty or stay current in my current one?
- Do I know which roles I am aiming for?
- Have I looked at what those roles actually ask for?
If you cannot name a goal, delay the purchase. Studying is a poor use of time when you do not know what it is for.
Compare credentials with experience
Think of certifications and experience as two ways of providing evidence. In general:
- Early in your career, with little experience, a credential may carry more weight because you have little else to show. A broad foundational credential can help here, though projects and a home lab can offer similar evidence.
- With a few years behind you, your work history usually matters more. A credential may fill a gap, for example when moving into an area you have not worked in.
- In specialized or regulated roles, certain credentials are sometimes expected or required. Check the job listings or ask people in the field.
If you can gain the same skill by doing a real task at work, that is usually more convincing than studying for an exam on it.
A decision checklist
Work through these questions before committing.
- Does it appear in real job listings? Search for the roles you want, in your area, and see which credentials come up repeatedly. Occasional mentions are different from a stated requirement.
- Who recognizes it? A credential from a respected, well-established body is more useful than an unknown one. Be cautious about providers that promise jobs or guaranteed pay.
- What does it actually cover? Read the published list of topics. Does it match what you need to learn? A vendor-neutral credential covers general concepts, while a vendor-specific one is relevant mainly if you will work with that vendor’s products.
- What is the full cost? Include the exam fee, study materials, any training course, retakes and renewal. Prices vary and change, so check current figures from the issuer.
- Does it expire? Many credentials need renewal through fees, continuing education or retesting. Factor that in.
- Will an employer pay for it? Some organizations cover exams or training. Ask before spending your own money.
- How much time will it take? Be realistic given your job, family and energy. A rushed attempt that you fail costs money and motivation.
- Does it test practical skill? Some exams are multiple choice; others require you to perform tasks. Neither is automatically better, but a hands-on format may reflect real ability more closely.
- Can I apply what I learn? Studying lands better when you can practice on equipment or in virtual machines, or use it in your current job.
If most answers are favorable, the credential is probably worth pursuing. If many are unclear, gather more information first.
Watch for common mistakes
Collecting credentials as a substitute for experience. A long string of credentials with no projects or work history can look hollow.
Choosing by hype. A credential popular in the news may not be what employers in your region or specialty want.
Learning only the exam. If you memorize answers without understanding them, you will struggle in interviews and at work. Aim to understand the material, and your interview preparation will be easier.
Ignoring cheaper alternatives. Free or low-cost learning, volunteer work and personal projects can build similar skills. They do not always carry the same recognition, but they cost less.
Using a credential once you have it
List it clearly on your IT resume, with the issuing body and date, and be ready to talk about what you learned and how you used it. Mention it on professional profiles. Keep it current if it matters to your goals, and let it lapse without regret if it no longer does.
Different specialties lean on credentials differently. Someone aiming at a cybersecurity career may find them more commonly requested than someone going into general support, and someone planning a path through career progression into a specialist role might choose one tied to the specialty they want. In every case, treat the credential as one piece of evidence among several, and choose the one that moves you toward a goal you have actually defined.