Using Practice Exams for CTFL Without Memorising Answers

A 90% score on a practice exam you have already seen means little: you may simply remember the answers. A practice exam is useful when it shows you what you do not understand yet. This article gives a four-step method for CTFL practice exams, an error log you can copy, and a rule for deciding when to book the real exam. The pass mark is 26 out of 40 (65%); our own rule is to aim higher than that on questions you have not seen.

The memorising trap

If you take the same practice exam three times, your score rises, but part of the rise is memory. You then walk into the real exam believing you are at 90% when you are not. The real exam asks the same learning objectives with different wording, and the K2 and K3 questions in particular test understanding, not recognition. The fix is not to avoid practice exams, it is to use them as a diagnostic.

A four-step method

1. Sit a full timed exam first

Start the clock: 60 minutes for 40 questions (75 minutes if you sit the exam in a language that is not your native one). Answer every question, as a wrong answer does not cost a point. Our free ISTQB mock exam has 40 questions with an optional 60-minute timer and an explained answer for each.

2. Log every error by chapter and by K level

The score tells you little. The pattern of errors tells you what to do. Use a table like this one:

The three reasons (did not know, misread, ran out of time) need three different remedies, so keep them apart. Each question in our mock exam shows the syllabus learning objective it tests, for example FL-4.2.2, which makes the last two columns easy to fill.

3. Re-read the syllabus section, not the answer key

Reading the correct answer teaches you that answer. Reading the syllabus section teaches you the idea behind it. Open the official syllabus at the objective, then explain it in your own words before moving on.

4. Retest on new questions only

After revising, test yourself on questions you have never seen: another practice exam, or the practice questions of a study guide. Our CTFL ebook, for instance, has 327 practice questions and 3 full practice exams, written by our team from the official syllabus. They are not real exam questions. A question you have already answered measures memory, not progress.

Reading your chapter scores

For the question traps and time management that practice exams reveal, read our guide to passing the CTFL exam.

The official exam has 8, 6, 4, 11, 9 and 2 questions on chapters 1 to 6. Chapters 4 and 5 weigh 20 questions out of 40, so a weak chapter 4 costs more than a weak chapter 6. Fix the heavy chapters first, then the others.

When you are ready: a personal threshold

The official pass mark is 65%, but at ADC we ask for more: we book the official exam when a candidate scores above 75% consistently on practice exams. That 10-point margin absorbs stress and wording you have not met. Use it as your own threshold only if the scores come from questions you had not seen.