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ISO/IEC 27001 · APMG · Auditor

The ISO/IEC 27001 Auditor exam format, explained

Forty scenario questions in two hours, restricted open book, twenty to pass. The word that does the work here is restricted: you may take four named documents in, and nothing else.

Reviewed by GoToCertify’s accredited trainers

40Questions
120 minTime limit
20 / 40Pass mark
RestrictedOpen book

The exam on paper

The APMG ISO/IEC 27001 Auditor certificate tests whether you can judge audit situations against the standard, rather than recall the standard itself.

Questions40, multiple choice, built on mini scenarios
Duration120 minutes
Pass mark50% — 20 correct answers out of 40
MaterialsRestricted open book
PrerequisitesNone stated
Accredited trainingNot mandatory. Self-study and direct exam booking are supported
Typical courseTwo days, where a course is taken

The four documents you may take in

Restricted open book means a named list, and the list is short:

ISO/IEC 27001:2022The requirements standard itself
ISO/IEC 27002:2022The guidance on the Annex A controls
ISO 19011:2018Guidelines for auditing management systems
APMG supplementary paperThe scheme’s own ISO/IEC 27001 supplementary material

Your course notes are not on that list. Neither is a summary you wrote yourself, a cheat sheet, or an annotated printout of somebody’s blog. If your revision strategy is a one-page crib, it does not survive contact with this exam.

The inclusion of ISO 19011 is the tell. This is an auditing exam before it is an information-security exam: the questions are as likely to turn on how an audit is planned, conducted and reported as on what a control requires.

Three minutes a scenario

Two hours across forty questions is three minutes each, and the questions are built on mini scenarios — a short situation, then a judgement.

Three minutes is enough to read a scenario, form a view and check one clause. It is not enough to read a scenario, form no view, and go looking for the answer in three documents. The difference between those two ways of using the time is the difference between finishing and not.

Twenty wrong answers is the margin, which is unusually wide — half the paper. Failure here is rarely about the threshold; it is about the last ten questions being rushed.

What "auditor" does and does not mean here

This certificate does not make you a certified lead auditor. It certifies expertise in performing audits against ISO/IEC 27001. Schemes that award a Lead Auditor credential — PECB’s, for one — additionally require years of professional experience and a logged number of audit hours before the title is granted.

That is not a criticism of either scheme; they answer different questions. APMG’s asks whether you understand auditing against this standard. PECB’s asks that, and then asks how long you have been doing it.

What this means for how you prepare

Tab all four permitted documents. Clause numbers on the outside edge, control themes on the bottom. You are being timed on retrieval, not on reading.

Read ISO 19011 properly. It is the document candidates skip, and it carries the audit process the scenarios are built on.

Decide, then verify. Form a view from the scenario before you open anything.

Questions people ask

What can I take into the ISO/IEC 27001 Auditor exam?

ISO/IEC 27001:2022, ISO/IEC 27002:2022, ISO 19011:2018 and the APMG ISO/IEC 27001 supplementary paper. Nothing else.

What is the pass mark?

Twenty out of forty — 50%.

How long is the exam?

Two hours for forty scenario-based multiple-choice questions.

Do I need the Foundation certificate first?

APMG does not state it as a prerequisite, though most providers sequence the levels that way.

Is accredited training mandatory?

No, though it is advised. A two-day Auditor course is the usual route.

Does this make me a Lead Auditor?

No. That is a different credential under a different scheme, with experience and audit-hour requirements attached.

Sources. Every figure on this page comes from APMG International’s own published certification pages, checked in September 2026.

Four documents, tabbed, beats a crib sheet you cannot bring

We run it as a two-day in-company course with an APMG-accredited trainer, the exam at your premises or by voucher. From €640 per participant, exam included, minimum four.

See the course
APMG International Accredited Training Organization for ISO/IEC 27001

BITIL.COM is an ATO (Accredited Training Organization) of APMG-International for ISO/IEC 27001® courses.

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