PECB · ISO27001LA
PECB Certified ISO/IEC 27001 Lead Auditor Practice Tests
Validates the skills to plan, execute, and manage audits of Information Security Management Systems (ISMS) based on ISO/IEC 27001. Earners can lead third-party audits and manage an ISO/IEC 27001 audit program.
Exam Details
Practice Questions
213
≈ 3 practice exams
Duration
180 minutes
Passing Score
70%
Difficulty
ProfessionalLast Updated
Oct 2026
Topics Covered
Fundamental Principles and Concepts of ISMSISO/IEC 27001 Information Security Management SystemInitiating an ISO/IEC 27001 AuditPreparing an ISO/IEC 27001 AuditConducting an ISO/IEC 27001 AuditAudit Reporting and Follow-UpManaging an ISO/IEC 27001 Audit Program
PECB Certified ISO/IEC 27001 Lead Auditor Practice Exam Preparation
Use this ISO27001LA practice exam to prepare for PECB Certified ISO/IEC 27001 Lead Auditor with realistic questions, detailed explanations, and focused study modes. The practice bank includes 213 questions for PECB ISO27001LA, so you can review the exam steadily instead of relying on one long cram session.
As you practice, pay extra attention to recurring topics such as Fundamental Principles and Concepts of ISMS, ISO/IEC 27001 Information Security Management System, Initiating an ISO/IEC 27001 Audit, Preparing an ISO/IEC 27001 Audit, and Conducting an ISO/IEC 27001 Audit. Start with short sessions to identify weak areas, then move into timed quizzes once your accuracy is consistent.
The explanations are written for candidates preparing for PECB certification questions and reviewing how the concepts apply in practice. Use the free preview first, then unlock the full question bank when you are ready to build a complete study routine.
Sample Questions
5 sample questions with answers and explanations. The full bank has 213 questions, enough for 3 full-length practice exams.
Preview — answers shown1. During an audit, the organization states that encryption ensures the availability of its data. The auditor corrects this misconception. Which security principle does encryption primarily ensure? (Select one!)
AConfidentiality
BAvailability
CNon-repudiation
DIntegrity
Explanation
Encryption primarily ensures confidentiality by preventing unauthorized access to data. Availability is ensured by controls such as redundancy, backups, and disaster recovery. Integrity is ensured by hashing and digital signatures. The auditor must correct the misconception that encryption addresses availability.
2. During an audit, the auditor obtains confidential trade secret information from the auditee. After the audit, the auditor uses this information to advise a different client in the same industry. Which principle is violated? (Select one!)
ADue professional care
BIntegrity
CConfidentiality
DFair presentation
Explanation
Confidentiality requires the protection of information acquired during the audit. Auditors must not use information for personal gain or disclose it without authorization. Using trade secrets to advise another client is a direct breach of this obligation. Integrity refers to honesty and ethics in conduct, due professional care to diligence, and fair presentation to accurate reporting, none of which primarily address the misuse of private data.
3. An auditor discovers evidence of fraud during a third-party certification audit. The auditor decides to report this finding truthfully and accurately in the audit report, reflecting the substance of the audit activity. Which principle is being applied? (Select one!)
AFair presentation
BConfidentiality
CRisk-based approach
DEvidence-based approach
Explanation
Fair presentation is the obligation to report audit findings, conclusions, and information truthfully and accurately, reflecting the substance of the audit activity. This includes reporting significant findings like fraud. Confidentiality involves protecting information, the risk-based approach focuses on areas of higher risk, and the evidence-based approach ensures conclusions are based on evidence. Fair presentation specifically addresses the accuracy and truthfulness of the reporting.
4. A logistics firm hires a consulting firm to conduct an audit of its ISMS. The consulting firm is not a certification body but is acting on behalf of the logistics firm's board of directors to prepare for an upcoming external audit. How is this audit classified? (Select one!)
AFirst-party audit
BThird-party audit
CSecond-party audit
DSurveillance audit
Explanation
This is a first-party audit. Even though an external consulting firm is hired, they are acting on behalf of the organization itself for internal management review and preparation. First-party audits can be conducted by internal staff or contracted consultants acting as internal auditors. Second-party audits are conducted by interested parties like customers, and third-party audits are conducted by independent certification bodies for certification.
5. An accredited certification body assigns a lead auditor to evaluate a manufacturing company's ISMS against ISO/IEC 27001 requirements. The audit team includes external experts not employed by the manufacturing company. Which audit type is being performed? (Select one!)
AFirst-party audit
BInternal management review
CThird-party audit
DSecond-party audit
Explanation
This is a third-party audit, conducted by an independent, accredited certification body to determine conformity to ISO/IEC 27001 requirements for the purpose of certification. The use of external auditors from an accredited body distinguishes it from first-party (internal) and second-party (customer/supplier) audits. Internal management reviews are part of the organization's own processes, not an external audit type.
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