Study Techniques for IT Certifications

The Feynman Technique involves explaining a concept in simple language as if teaching it to someone with no background. If you cannot explain it clearly, you identify exactly where your understanding breaks down. For certifications, try explaining how TCP/IP handshakes work, how AWS IAM policies evaluate permissions, or how OSPF determines routing paths in plain language. The gaps in your explanation reveal the gaps in your knowledge.

Interleaving means mixing different topics within a single study session rather than blocking (studying one topic exhaustively before moving to the next). Research shows interleaved practice produces better long-term retention and transfer - the slight difficulty of context-switching forces deeper processing. For certification study, alternate between different service types or domains within a session rather than spending three hours on a single topic.

Research on deliberate practice suggests 1-4 hours of focused, high-quality study per day is optimal for most adults. Beyond 4 hours, cognitive performance degrades significantly and the additional time produces diminishing returns. Two hours of genuine active study (practice exams, Anki, teaching aloud, hands-on labs) outperforms six hours of passive re-reading every time.

Vary it. Revisiting the same material daily in the same order reduces the cognitive effort required and therefore reduces the encoding strength. Interleave topics, alternate between different learning modes (video, practice exam, hands-on), and periodically return to material you covered weeks ago. Variation and spaced returns to old material are both features of effective study schedules, not bugs.

The most effective study techniques for technical certifications are often counterintuitive. This guide covers the science-backed methods that consistently outperform traditional re-reading and passive review.