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CoStudy Study Guides

Plain-English writing on how to study, how exams are actually scored, and what to do in the weeks before test day.

Most exam advice online is either a listicle of study tips that apply to nothing in particular, or a sales page wearing a guide's clothing. These are neither. They answer the questions candidates actually search for — what the passing score is and whether one exists, how long the exam runs, what the eligibility rules are, whether flashcards or multiple choice is the better use of an evening — and they answer them plainly, including when the honest answer is "the certifying body has never published that number."

Two threads run through most of them. The first is that a practice question is only worth the rationale attached to it: knowing which letter was right teaches you almost nothing, while knowing why the plausible wrong answer was wrong is what moves a score. The second is that scheduling beats intensity. Candidates who book the exam and work backwards from the date consistently do better than candidates who study until they feel ready, because that feeling rarely arrives on its own.

Where a guide covers a specific certification, it links to the matching question bank so you can practise the thing you have just read about. Where it covers technique, it applies across every exam in the catalogue.

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Reading about technique is the cheap half. These are the banks candidates open most often:

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