test him?
having these pieces of papers makes the recruiting for them easier.
And yes! it means the person at least has an idea what he talks about.
these papers show someone got tested before.
It really depends though. In theory it is amazing yes. But 1) Certification is sometimes extremely easy and sometimes very hard, depending where you are going to 2) Is only a part of the picture. Real life IT often requires fast decision making, creative approaches and a lot of soft skills like giving clear answers when it matters
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