ISO/IEC 27001 Lead Auditor Certification Exam Practice Test
Build your confidence for ISO/IEC 27001 Lead Auditor Certification Exam. Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
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PECB ISO 27001 Lead Auditor certification covering information security management system auditing, audit planning, conducting audits, and reporting per ISO 19011 and ISO 17021. Administered by PECB. Key domains include Conducting an ISO/IEC 27001 audit, Fundamental audit concepts and principles, Fundamental principles and concepts of an information security management system (ISMS) and Preparing an ISO/IEC 27001 audit.
Sample Questions
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A managed security service provider is undergoing an ISO/IEC 27001 Lead Auditor practice scenario in March 2025. During the closing and report preparation, SOC analysts work in three time zones under a follow-the-sun model. The evidence related to unresolved major nonconformity shows that the team has a dashboard for unresolved major nonconformity, but the underlying samples exclude the highest-risk service named in the scope statement. As background, the finance team changed expense categories. What should the lead auditor do in the closing process?
A municipal utility is undergoing an ISO/IEC 27001 Lead Auditor practice scenario in February 2025. During the closing and report preparation, customer billing and SCADA reporting are both referenced in the ISMS scope. The evidence related to insufficient objective evidence shows that records mention insufficient objective evidence, but the retained evidence stops at approval and does not show whether the process operates inside the ISMS scope. As background, the call center changed its hold music. What should the lead auditor do in the closing process?
A software development subsidiary is undergoing an ISO/IEC 27001 Lead Auditor practice scenario in May 2025. During the closing and report preparation, release engineering moved from self-hosted runners to a hosted CI service. The evidence related to Stage 2 failure to implement controls shows that the policy references Stage 2 failure to implement controls, but the auditor finds no trail from requirements to risk treatment, control selection, monitoring, and review. As background, the HR team changed its onboarding video. What should the lead auditor do in the closing process?
A payment processor is undergoing an ISO/IEC 27001 Lead Auditor practice scenario in August 2024. During the closing and report preparation, a new risk register was imported from a GRC tool three weeks before the audit. The evidence related to correction versus corrective action shows that interviews give two different explanations of correction versus corrective action, while the procedure and risk register use different criteria. As background, the office lease renewal is being negotiated. What should the lead auditor do in the closing process?
A payment processor is undergoing an ISO/IEC 27001 Lead Auditor practice scenario in August 2024. During the closing and report preparation, a new risk register was imported from a GRC tool three weeks before the audit. The evidence related to internal audit ineffectiveness shows that the team has a dashboard for internal audit ineffectiveness, but the underlying samples exclude the highest-risk service named in the scope statement. As background, the office lease renewal is being negotiated. What should the lead auditor do in the closing process?
Career Opportunities & Salary
Exam insights and study advice
In today's landscape of escalating cyber threats and regulatory pressures, independent, competent audit of information security controls is not optional-it is a critical business function. This certification matters because it equips professionals to provide objective assurance to management, customers, and regulators that an organization's information security risks are properly managed. A certified lead auditor can identify systemic weaknesses, verify control effectiveness, and drive meaningful improvements, directly contributing to organizational resilience, trust, and compliance. This practical skill set is essential for protecting assets, maintaining business continuity, and fulfilling contractual or legal obligations in any sector.
What this exam covers
Use the published domain weights to plan your study. Practice results do not predict your certification exam score.
01Conducting an ISO/IEC 27001 audit
This domain explains the specific techniques required to conduct an ISO/IEC 27001 audit effectively, focusing on on-site execution methods, interviewing techniques, and gathering verifiable audit evidence from stakeholders.
02Fundamental audit concepts and principles
This foundational domain addresses basic audit concepts and governing principles that dictate professional evaluation practices, ensuring that candidates clearly understand objective evidence gathering and auditor responsibilities during complex assessments.
03Fundamental principles and concepts of an information security management system (ISMS)
This domain covers the fundamental principles and core concepts associated with establishing and maintaining an information security management system within any organization seeking formal compliance and alignment with standards.
04Preparing an ISO/IEC 27001 audit
This detailed section examines the administrative steps involved in properly preparing an ISO/IEC 27001 audit, including documentation review, planning activities, and schedule coordination to ensure complete operational readiness.
05Information security management system (ISMS) and ISO/IEC 27001 requirements
This specific domain focuses on the detailed information security management system specifications and the mandatory ISO/IEC 27001 requirements that lead auditors must verify during assessments and evaluations.
06Managing an ISO/IEC 27001 audit program
This domain covers the broader responsibilities regarding the management of an ISO/IEC 27001 audit program, including ongoing oversight, competence maintenance, and efficient allocation of resources within organizations.
07Closing an ISO/IEC 27001 audit
This domain details the necessary procedures for properly closing an ISO/IEC 27001 audit, which includes compiling final audit findings reporting and conducting conclusive closing meetings with organizational stakeholders.