I hold 30+ IT certifications earned through self-study, including multiple NVIDIA certifications at both Associate and Professional levels, seven AWS certifications (up to Solutions Architect Professional), and deep learning certifications.

I build practice exams for the certifications I have taken myself. They are written to cover the published exam objectives and each domain's weighting, and every question comes with an explanation that covers not only the correct answer but why each of the other options is wrong.