- Exam Code: ISO-IEC-27001-Lead-Auditor
- Exam Name: PECB Certified ISO/IEC 27001 Lead Auditor exam
- Updated: Sep 04, 2026
- Q & A: 418 Questions and Answers
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| Certification Vendor: | PECB |
|---|---|
| Exam Name: | PECB Certified ISO/IEC 27001 Lead Auditor |
| Exam Number: | ISO-IEC-27001-Lead-Auditor |
| Exam Duration: | 180 minutes |
| Exam Price: | USD 500 |
| Available Languages: | Spanish, German, French, English, Portuguese |
| Passing Score: | 70% |
| Related Certifications: | PECB ISO/IEC 27001 Lead Implementer PECB ISO/IEC 27001 Foundation |
| Real Exam Qty: | 80 |
| Certificate Validity Period: | 3 years (with maintenance requirement) |
| Exam Format: | Essay-type questions, Multiple choice |
| Sample Questions: | ![]() |
| Exam Way: | Online proctored exam or at authorized testing centers worldwide |
| Pre Condition: | Candidates should have a foundational understanding of ISO/IEC 27001 and audit principles. It is recommended (but not mandatory) to have completed the PECB ISO/IEC 27001 Lead Implementer training or equivalent experience. |
| Official Syllabus URL: | https://pecb.com/en/education/iso-iec-27001-lead-auditor |
| Section | Weight | Objectives |
|---|---|---|
| Audit Lifecycle and Competencies of the Lead Auditor | 25% | - Managing audit relationships with audited parties - Audit communication strategies - Conflict resolution during audits - Audit follow-up and corrective action verification - Leading an audit team |
| Audit Principles and Audit Process | 20% | - Audit evidence collection techniques - Audit scope and objectives - Risk-based audit approach - Audit sampling methodology - Audit types and stages ( initiation, planning, execution, reporting) |
| Information Security Management Systems (ISMS) and the ISO/IEC 27001 Standard | 15% | - Fundamental principles and concepts of information security - Overview of ISO/IEC 27001 and its relationship with ISO/IEC 27002 - Regulatory and legal considerations in information security |
| Certification and Accreditation Framework | 15% | - ISO/IEC 17021-1 requirements for certification bodies - Audit report preparation and documentation - Certification decision process - Surveillance and re-certification audits - Principles of certification bodies |
| ISMS Audit Based on ISO 19011 and ISO/IEC 17021-1 | 25% | - Auditing control selection and implementation (Annex A) - Auditing the context of the organization - Auditing organizational structure and roles - Continual improvement processes - Auditing risk assessment and treatment processes - Measuring, monitoring, and reporting ISMS performance - Auditing leadership commitment |
The PECB Certified ISO/IEC 27001 Lead Auditor is the official PECB exam that leads to the ISO 27001 certification at the Professional level. Passing it validates your skills against PECB standards and proves your qualification to current and future employers. The credential is also connected with related certifications such as PECB ISO/IEC 27001 Lead Implementer, PECB ISO/IEC 27001 Foundation, so it can serve as a solid step in a broader certification path.
The ISO-IEC-27001-Lead-Auditor exam has 80 questions in total and must be completed within 180 minutes. That leaves only a narrow time budget per item, so train yourself to flag a difficult question, move on, and circle back later instead of getting stuck. A week or two before your test date, run at least one full timed mock exam in the Actual4Dumps desktop or online test engine under the same 180 minutes limit, and repeat until you can finish with a few minutes left for review.
The passing score for the ISO-IEC-27001-Lead-Auditor exam is 70%, and the official registration fee is USD 500. Keep in mind that a failed attempt is not discounted — retaking the exam means paying the full fee again — so it is wise not to book your seat until your practice scores sit comfortably above the passing mark. Working through the 418 questions at Actual4Dumps in timed mode is a reliable way to judge when you are truly ready.
PECB sets the following requirement for the ISO-IEC-27001-Lead-Auditor exam: Candidates should have a foundational understanding of ISO/IEC 27001 and audit principles. It is recommended (but not mandatory) to have completed the PECB ISO/IEC 27001 Lead Implementer training or equivalent experience.. Eligibility rules can change from time to time, so always confirm the current prerequisites on the official exam page at https://pecb.com/en/education/iso-iec-27001-lead-auditor before you register.
Yes. Actual4Dumps offers a free PDF demo for the PECB Certified ISO/IEC 27001 Lead Auditor, so you can review real sample questions and judge the quality before paying anything. After your purchase, you receive 365 days of free updates — whenever the question pool changes, you get the latest version at no cost. Once that period expires, you can extend your update service at a 50% discount from your member zone.
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The PECB Certified ISO/IEC 27001 Lead Auditor is organized into 5 domains. Among the first ones are Certification and Accreditation Framework (15%), ISMS Audit Based on ISO 19011 and ISO/IEC 17021-1 (25%), Information Security Management Systems (ISMS) and the ISO/IEC 27001 Standard (15%), and the remaining domains cover the rest of the official objectives. For the complete topic breakdown with every subtopic, see the full ISO-IEC-27001-Lead-Auditor exam outline above on this page.
Question 1
Auditor competence is a combination of knowledge and skills. Which two of the following activities are predominately related to "knowledge"?
A. Determining what evidence to gather
B. Understanding how to identify findings
C. Determining how to seek evidence from the auditee
D. Communicate with the auditee
E. Designing a checklist
F. Follow an audit trail deviating from the prepared checklist
Question 2
Scenario 5
CyberShielding Systems Inc. provides security services spanning the entire information technology infrastructure. It provides cybersecurity software, including endpoint security, firewalls, and antivirus software. CyberShielding Systems Inc. has helped various companies secure their networks for two decades through advanced products and services. Having achieved a reputation in the information and network security sector, CyberShielding Systems Inc. decided to implement a security information management system (ISMS) based on ISO/IEC 27001 and obtain a certification to better secure its internal and customer assets and gain a competitive advantage.
The certification body initiated the process by selecting the audit team for CyberShielding Systems Inc.'s ISO
/IEC 27001 certification. They provided the company with the name and background information of each audit member. However, upon review, CyberShielding Systems Inc. discovered that one of the auditors did not hold the security clearance required by them. Consequently, the company objected to the appointment of this auditor. Upon review, the certification body replaced the auditor in response to CyberShielding Systems Inc.'s objection.
As part of the audit process, CyberShielding Systems Inc.'s approach to risk and opportunity determination was assessed as a standalone activity. This involved examining the organization's methods for identifying and managing risks and opportunities. The audit team's core objectives encompassed providing assurance on the effectiveness of CyberShielding Systems Inc.'s risk and opportunity identification mechanisms and reviewing the organization's strategies for addressing these determined risks and opportunities. During this, the audit team also identified a risk due to a lack of oversight in the firewall configuration review process, where changes were implemented without proper approval, potentially exposing the company to vulnerabilities. This finding highlighted the need for stronger internal controls to prevent such issues.
The audit team accessed process descriptions and organizational charts to understand the main business processes and controls. They performed a limited analysis of the IT risks and controls because their access to the IT infrastructure and applications was limited by third-party service provider restrictions. However, the audit team stated that the risk of a significant defect occurring in CyberShielding's ISMS was low since most of the company's processes were automated. They therefore evaluated that the ISMS, as a whole, conforms to the standard requirements by questioning CyberShielding representatives on IT responsibilities, control effectiveness, and anti-malware measures. CyberShielding's representatives provided sufficient and appropriate evidence to address all these questions.
Despite the agreement signed before the audit, which outlined the audit scope, criteria, and objectives, the audit was primarily focused on assessing conformity with established criteria and ensuring compliance with statutory and regulatory requirements.
Question
What kind of audit risk did the audit team identify? Refer to Scenario 5.
A. Detection risk
B. Inherent risk
C. Control risk
Question 3
Question:
EquiBank is undergoing an external audit of its financial management system. The auditors evaluate the logic of transactions processed by EquiBank's financial software. To ensure accuracy, they use simulations to validate operations, calculations, and controls programmed in the software applications. What type of Computer-Assisted Audit Technique (CAAT) is used?
A. Utility software
B. Data test
C. Plotting and cartography software applications
Question 4
Scenario 5: Cobt. an insurance company in London, offers various commercial, industrial, and life insurance solutions. In recent years, the number of Cobt's clients has increased enormously. Having a huge amount of data to process, the company decided that certifying against ISO/IEC 27001 would bring many benefits to securing information and show its commitment to continual improvement. While the company was well- versed in conducting regular risk assessments, implementing an ISMS brought major changes to its daily operations. During the risk assessment process, a risk was identified where significant defects occurred without being detected or prevented by the organizations internal control mechanisms.
The company followed a methodology to implement the ISMS and had an operational ISMS in place after only a few months After successfully implementing the ISMS, Cobt applied for ISO/IEC 27001 certification Sarah, an experienced auditor, was assigned to the audit Upon thoroughly analyzing the audit offer, Sarah accepted her responsibilities as an audit team leader and immediately started to obtain general information about Cobt She established the audit criteria and objective, planned the audit, and assigned the audit team members' responsibilities.
Sarah acknowledged that although Cobt has expanded significantly by offering diverse commercial and insurance solutions, it still relies on some manual processes Therefore, her initial focus was to gather information on how the company manages its information security risks Sarah contacted Cobt's representatives to request access to information related to risk management for the off-site review, as initially agreed upon for part of the audit However, Cobt later refused, claiming that such information is too sensitive to be accessed outside of the company This refusal raised concerns about the audit's feasibility, particularly regarding the availability and cooperation of the auditee and access to evidence Moreover, Cobt raised concerns about the audit schedule, stating that it does not properly reflect the recent changes the company made It pointed out that the actions to be performed during the audit apply only to the initial scope and do not encompass the latest changes made in the audit scope Sarah also evaluated the materiality of the situation, considering the significance of the information denied for the audit objectives. In this case, the refusal by Cobt raised questions about the completeness of the audit and its ability to provide reasonable assurance. Following these situations, Sarah decided to withdraw from the audit before a certification agreement was signed and communicated her decision to Cobt and the certification body. This decision was made to ensure adherence to audit principles and maintain transparency, highlighting her commitment to consistently upholding these principles.
Based on the scenario above, answer the following question:
Question:
Based on the information provided in Scenario 5, Cobt refused to provide the auditors with information on risk management. How would you, as an auditor, resolve such a situation?
A. By reminding Cobt's representatives that the audit team leader decides the access that the audit team should have to information during the audit process
B. By only accessing such information on-site or when Cobt's representatives are present
C. By refusing the audit mandate since it is within an auditor's right to do so when the confidentiality agreement is not followed
Question 5
Which two of the following work documents are not required for audit planning by an auditor conducting a certification audit?
A. An audit plan
B. A checklist
C. An organisation's financial statement
D. A list of external providers
E. A sample plan
F. A career history of the IT manager
Solutions:
| Question 1 Answer: A,E | Question 2 Answer: C | Question 3 Answer: B | Question 4 Answer: B | Question 5 Answer: C,F |
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