100+ Free ISO 27001 LI Practice Questions

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What does the acronym ISMS stand for in the context of ISO/IEC 27001?

Information Security Monitoring System

Information Security Management System

Internal Security Management Standard

International Security Management Specification

to track

2026 Statistics

Key Facts: ISO 27001 LI Exam

70%

Passing Score

PECB

Exam Questions

3 hours, open-book

Annex A Controls

ISO/IEC 27001:2022

$500-$1K

Exam Fee

PECB

3 years

Certification Validity

PECB

Competency Domains

PECB

ISO/IEC 27001 Lead Implementer is PECB's flagship implementation credential for information security management systems. The multiple-choice exam contains 12 scenario-based questions over 3 hours and is open-book, requiring 70% to pass. Content spans 7 competency domains: ISMS fundamentals, ISO 27001 requirements, planning, implementation of Annex A controls, monitoring and measurement, continual improvement, and certification-audit preparation. Fees typically run $500-$1,000 depending on package. The 2022 revision aligns Annex A with ISO/IEC 27002:2022 (93 controls grouped into Organizational, People, Physical, and Technological themes).

Sample ISO 27001 LI Practice Questions

Try these sample questions to test your ISO 27001 LI exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What does the acronym ISMS stand for in the context of ISO/IEC 27001?

A.Information Security Monitoring System

B.Information Security Management System

C.Internal Security Management Standard

D.International Security Management Specification

Explanation: ISMS stands for Information Security Management System. ISO/IEC 27001 specifies the requirements for establishing, implementing, maintaining, and continually improving an ISMS — a systematic approach to managing sensitive information so that it remains secure. The ISMS encompasses people, processes, and technology and is governed by the requirements in clauses 4-10 of the standard.

2Which three properties form the classic CIA triad of information security?

A.Confidentiality, Integrity, Availability

B.Compliance, Integration, Authentication

C.Control, Identification, Authorization

D.Confidentiality, Identification, Accountability

Explanation: The CIA triad refers to Confidentiality (information is accessible only to authorized parties), Integrity (information is accurate and unaltered by unauthorized parties), and Availability (information is accessible to authorized users when needed). ISO/IEC 27000 defines information security as the preservation of these three properties, and ISO/IEC 27001 is built around protecting them.

3Which ISO standard provides the code of practice / implementation guidance for the controls listed in Annex A of ISO/IEC 27001?

A.ISO/IEC 27000

B.ISO/IEC 27002

C.ISO/IEC 27005

D.ISO 19011

Explanation: ISO/IEC 27002 provides detailed implementation guidance and a code of practice for the information security controls referenced in Annex A of ISO/IEC 27001. The 2022 version of ISO/IEC 27002 introduced the same 93 controls organized into 4 themes that now appear in Annex A. ISO/IEC 27005 covers risk management, and ISO 19011 covers auditing management systems.

4How many controls are listed in Annex A of ISO/IEC 27001:2022?

A.114

B.93

C.133

D.75

Explanation: ISO/IEC 27001:2022 contains 93 controls in Annex A, reduced from 114 in the 2013 version through merging and modernization. The 93 controls are organized into 4 themes: Organizational (37), People (8), Physical (14), and Technological (34). Eleven controls are entirely new, including threat intelligence, secure coding, and web filtering.

5What model underpins the structure of an ISMS, emphasizing iterative improvement?

A.OSI model

B.PDCA (Plan-Do-Check-Act)

C.DMAIC

D.ITIL service lifecycle

Explanation: The Plan-Do-Check-Act (PDCA) cycle, also known as the Deming cycle, underpins the ISMS structure in ISO/IEC 27001. Plan establishes ISMS objectives and processes, Do implements them, Check monitors and measures performance, and Act takes corrective and improvement actions. Although the explicit PDCA labels were removed from ISO 27001:2013, the iterative principle is preserved in clauses 4-10.

6Which clause of ISO/IEC 27001:2022 addresses the context of the organization?

A.Clause 4

B.Clause 5

C.Clause 6

D.Clause 7

Explanation: Clause 4 (Context of the Organization) requires the organization to determine internal and external issues, the needs and expectations of interested parties, and the scope of the ISMS. This is the foundation upon which all subsequent ISMS planning is built. Clause 5 covers Leadership, Clause 6 Planning, and Clause 7 Support.

7In ISO/IEC 27001:2022, what does the acronym SoA stand for?

A.Statement of Audit

B.Schedule of Activities

C.Statement of Applicability

D.Standard of Assurance

Explanation: SoA stands for Statement of Applicability. Required by clause 6.1.3, the SoA documents which Annex A controls are applicable to the organization's ISMS, justifications for inclusion or exclusion, current implementation status, and references to control owners or related procedures. It is one of the most scrutinized documents in any ISO 27001 certification audit.

8Into how many themes are the Annex A controls grouped in ISO/IEC 27001:2022?

A.3

B.4

C.5

D.14

Explanation: The 93 controls in Annex A of ISO/IEC 27001:2022 are grouped into 4 themes: Organizational controls (A.5, 37 controls), People controls (A.6, 8 controls), Physical controls (A.7, 14 controls), and Technological controls (A.8, 34 controls). The 2013 version used 14 categories; the 2022 revision consolidated them into these 4 themes for clarity.

9Which ISO standard provides guidelines specifically for information security risk management?

A.ISO/IEC 27001

B.ISO/IEC 27002

C.ISO/IEC 27004

D.ISO/IEC 27005

Explanation: ISO/IEC 27005 provides guidelines for information security risk management and supports the general concepts specified in ISO/IEC 27001. It describes a risk management process aligned with ISO 31000, covering context establishment, risk assessment (identification, analysis, evaluation), risk treatment, acceptance, communication, and monitoring/review.

10Which ISO standard provides guidelines for monitoring, measurement, analysis and evaluation of an ISMS?

A.ISO/IEC 27003

B.ISO/IEC 27004

C.ISO/IEC 27005

D.ISO/IEC 27017

Explanation: ISO/IEC 27004 provides guidance on the monitoring, measurement, analysis, and evaluation of an ISMS, supporting clause 9.1 of ISO/IEC 27001. It defines metrics types, measurement constructs, and how to design indicators that demonstrate the effectiveness and performance of information security controls.

About the ISO 27001 LI Exam

PECB ISO/IEC 27001 Lead Implementer validates the knowledge and skills needed to support an organization in planning, implementing, managing, monitoring, and maintaining an Information Security Management System (ISMS) aligned with ISO/IEC 27001:2022. The exam covers ISMS fundamentals, ISO 27000 family, gap analysis, risk assessment and treatment, the Statement of Applicability, the 93 Annex A controls (4 themes), monitoring and measurement, internal audit, management review, continual improvement, and certification audit preparation.

Questions

12 scored questions

Time Limit

3 hours

Passing Score

70%

Exam Fee

$500-$1,000 (PECB)

ISO 27001 LI Exam Content Outline

10%

ISMS Fundamentals and ISO 27000 Family

ISO/IEC 27000, 27001, 27002, 27003, 27004, 27005, CIA triad, and ISMS principles

15%

Initiation of ISMS Implementation

Gap analysis, ISMS scope, leadership commitment, context of the organization, and interested parties

20%

Planning the ISMS

Asset management, risk assessment and treatment (ISO 27005), Statement of Applicability, and information security objectives

20%

Implementing the ISMS

Annex A 2022 controls (93 controls / 4 themes), documentation, awareness, communication, and operational controls

15%

Monitoring and Measurement

ISO 27004 metrics, internal audit (ISO 19011), management review, and performance evaluation

10%

Continual Improvement

Nonconformities, corrective actions, root cause analysis, and PDCA improvement cycle

10%

Certification Audit Preparation

Stage 1 and Stage 2 audits, audit findings, certification process, and surveillance audits

How to Pass the ISO 27001 LI Exam

What You Need to Know

Passing score: 70%
Exam length: 12 questions
Time limit: 3 hours
Exam fee: $500-$1,000

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ISO 27001 LI Study Tips from Top Performers

1Read ISO/IEC 27001:2022 and ISO/IEC 27002:2022 cover-to-cover — the exam is open-book and tabbing your standard saves time on scenario questions

2Memorize the 4 Annex A themes and approximate counts (Organizational 37, People 8, Physical 14, Technological 34 = 93) to navigate scenarios quickly

3Master the 11 new 2022 controls (5.7, 5.23, 5.30, 7.4, 8.9, 8.10, 8.11, 8.12, 8.16, 8.23, 8.28) — they appear disproportionately on current exams

4Know the mandatory clauses 4-10 (Context, Leadership, Planning, Support, Operation, Performance Evaluation, Improvement) and the documented information they require

5Understand the risk-management workflow from ISO/IEC 27005 — identification, analysis, evaluation, treatment options, and residual-risk acceptance

6Practice the Statement of Applicability logic — for every Annex A control: included or excluded, justification, current implementation status

Frequently Asked Questions

What is the PECB ISO/IEC 27001 Lead Implementer exam format?

The multiple-choice version is an open-book exam with 12 scenario-based questions to be completed in 3 hours, requiring 70% to pass. The exam is delivered through the PECB Exams platform either online or paper-based at PECB-approved test centers. The questions assess your ability to apply ISO/IEC 27001:2022 requirements to realistic implementation scenarios rather than rote memorization.

What are the prerequisites for ISO 27001 Lead Implementer?

PECB does not enforce strict prerequisites to sit the exam. To obtain the full Lead Implementer certification, candidates need approximately 5 years of professional experience (2 years specifically in information security) and must complete a project of at least 200 hours implementing an ISMS. Foundational knowledge of ISO/IEC 27001 and information security principles is strongly recommended.

How much does the ISO 27001 Lead Implementer exam cost?

The exam-only fee typically ranges from $500 to $1,000 USD, depending on whether it is purchased standalone or bundled with the official 5-day training course. Training-plus-exam packages from PECB partners commonly run $2,000-$3,500. PECB offers a free retake within 12 months of a failed first attempt.

What is the difference between Lead Implementer and Lead Auditor?

Lead Implementer focuses on building and operating an ISMS — gap analysis, scoping, risk treatment, control implementation, and continual improvement. Lead Auditor focuses on auditing an ISMS against ISO/IEC 27001 using ISO 19011 audit principles. Implementers work for the organization being certified; auditors work for the certification body or as independent assessors. Many security professionals hold both.

Is ISO 27001 Lead Implementer worth it in 2026?

Yes. ISO/IEC 27001 is the global benchmark for ISMS certification, and the 2022 revision (with 11 new controls including threat intelligence and secure coding) has driven a wave of recertification projects. Lead Implementer is widely required or preferred for ISMS Manager, GRC Lead, and Security Architect roles, especially in organizations preparing for or maintaining 27001 certification.

How does ISO/IEC 27001:2022 differ from the 2013 version?

ISO/IEC 27001:2022 reorganizes Annex A into 93 controls (down from 114) grouped into 4 themes — Organizational (37), People (8), Physical (14), and Technological (34). Eleven controls are new, including A.5.7 Threat intelligence, A.5.23 Cloud services, A.8.9 Configuration management, A.8.16 Monitoring activities, A.8.23 Web filtering, and A.8.28 Secure coding. Existing controls were merged or modernized.