GIAC GICSP Practice Test
Prepare for the GIAC Global Industrial Cyber Security Professional exam with free practice tests built around the real GICSP format. Each test has 20 questions timed at approximately 44 minutes, proportional to the actual exam pace — giving you authentic practice for the real 3-hour proctored, open-book exam.
Mixed Set — GICSP Practice Tests
Questions distributed across all GICSP topic areas according to the official GIAC exam blueprint. ICS architecture, protocols, endpoint hardening, and incident response all appear in every mixed set — reflecting the real exam's broad coverage of industrial cybersecurity across the IT/OT convergence.
Domain Wise — GICSP Mock Tests
Target individual GICSP topic areas with focused practice. Each mock test covers 20 questions from a single domain to help you build the deep, integrated IT/OT knowledge required to protect industrial control systems at every level of the Purdue Enterprise Reference Architecture.
About the GICSP Certification Exam
Everything you need to know about the GIAC Global Industrial Cyber Security Professional exam — what it validates, who it's designed for, and what the credential means for professionals working at the intersection of IT, operational technology, and engineering.
What Is the GICSP?
The GIAC Global Industrial Cyber Security Professional (GICSP) is a practitioner-level certification offered by GIAC, the certification body of the SANS Institute. It is the only vendor-neutral ICS security certification developed through collaboration between asset owners, vendors, and cybersecurity professionals. GICSP validates an understanding of IT, engineering, and cybersecurity sufficient to achieve security for industrial control systems from design through retirement — covering the full Purdue Enterprise Reference Architecture from field devices at Level 0 through enterprise integration at Level 3 and 4.
GICSP is internationally recognized and holds ANAB ISO/IEC 17024 accreditation, meeting DoD 8570/8140 requirements for relevant roles. It is particularly valued in critical infrastructure sectors including energy, utilities, oil and gas, water treatment, manufacturing, and transportation. Certified professionals typically earn between $95,000 and $150,000 annually in the United States, with roles including ICS Security Engineer, OT Security Analyst, Critical Infrastructure Protection Specialist, Control Systems Security Architect, and Industrial Cybersecurity Consultant. The certification aligns directly with the SANS ICS410 course: ICS/SCADA Security Essentials.
Exam Format (2026)
Testing method: Web-based, proctored — remote via ProctorU or onsite via Pearson VUE. Open-book format; printed books, handwritten notes, and a personal index are permitted.
Questions: 82 to 115 multiple-choice questions covering all GICSP topic areas.
Duration: 3 hours.
Question types: Multiple-choice and scenario-based questions. Always verify current format with GIAC before your exam date.
Passing score: 71% for all candidates receiving exam access on or after November 19, 2018.
Exam fee: $999 USD (standalone attempt); often bundled with SANS ICS410 training.
Eligibility Requirements
Prerequisites: No formal prerequisites. Any candidate who registers is eligible to attempt the GICSP exam.
Recommended background: GIAC targets GICSP at professionals who work with or around industrial control systems — engineers, IT professionals supporting OT environments, and cybersecurity analysts transitioning into ICS security. Familiarity with networking fundamentals and basic security concepts is strongly beneficial.
Open-book rules: Printed books, handwritten or printed notes, and a personal index are permitted. Electronic devices, USB drives, tablets, and internet access are strictly prohibited during the exam.
Retake policy: A 30-day waiting period applies after a failed attempt. Up to three attempts are allowed per year within a 570-day maximum exam lifecycle.
Renewal: Valid for 4 years. Renew by earning 36 CPE credits and paying the $499 renewal fee, or by retaking the current version of the exam.
GICSP Topic Areas — 2025–2026 Exam Outline
The GICSP exam covers ten topic areas aligned with the SANS ICS410 course, spanning ICS fundamentals, the Purdue Reference Architecture, industrial protocols, threat modeling, endpoint hardening, wireless security, and OT-specific incident response.
| Area | Topic | Coverage |
|---|---|---|
| D1 | Hardening and Protecting Endpoints | Core |
| D2 | ICS Components and Architecture | Core |
| D3 | ICS Overview and Concepts | Core |
| D4 | ICS Program and Policy Development | Core |
| D5 | Intelligence Gathering and Threat Modeling | Core |
| D6 | PERA Level 0 and 1 Technology Overview and Compromise | Core |
| D7 | PERA Level 2 and 3 Technology Overview and Compromise | Core |
| D8 | Protocols, Communications, and Compromises | Core |
| D9 | Risk-Based Disaster Recovery and Incident Response | Core |
| D10 | Wireless Technologies and Compromises | Core |
How Our Practice Tests Are Designed
IT/OT convergence question framing — GICSP questions are unique in that they test the intersection of IT security principles, engineering constraints, and operational priorities. You will encounter scenarios where the correct answer must account for safety, availability, and real-time process requirements — not just standard IT security best practice. Our questions reflect this layered, consequence-aware framing.
Full lifecycle coverage in mixed sets — Every mixed practice test draws questions from all ten GICSP topic areas, reflecting the real exam's broad scope across ICS fundamentals, the Purdue architecture, industrial protocols, endpoint hardening, wireless security, threat modeling, and OT incident response. No single topic dominates — candidates need breadth across the entire body of knowledge.
Proportional timer — The real GICSP exam provides 3 hours for 82 to 115 questions, approximately 1.6 to 2.2 minutes per question depending on the version you receive. Each 20-question practice test is timed at 44 minutes, developing the pacing discipline needed to complete the real exam comfortably within its 3-hour window.
Domain-specific deep dives — Use topic-focused mock tests to isolate areas where your ICS knowledge is weakest. Many candidates come from either an IT background or an engineering background — domain tests help you rapidly close gaps in whichever side of the IT/OT divide you are less familiar with.
GICSP Exam Preparation Tips
Study Strategy
Learn ICS from both sides of the divide: GICSP uniquely targets professionals who must understand both IT cybersecurity principles and OT engineering realities. If your background is IT, invest time in understanding how PLCs, RTUs, DCS, and HMIs actually function in physical processes. If your background is engineering, invest equally in understanding networking, protocols, and security controls. The exam will test both.
Master the Purdue Reference Architecture: The PERA model — with its five levels from physical process to enterprise network — is the structural backbone of the GICSP exam. Understand what technology lives at each level, what attack methods target each level, and what defense strategies are appropriate given the safety and availability constraints of each zone.
Build a cross-disciplinary index: Create a personal index that covers both IT security terminology and ICS-specific terms, standards (IEC 62443, NERC CIP, NIST SP 800-82), protocols (Modbus, DNP3, EtherNet/IP), and architecture concepts. Candidates who can quickly locate answers across both domains consistently perform better on the open-book exam.
Test-Taking Strategy
Prioritize safety and availability in ICS scenarios: When an GICSP question presents a choice between security actions, always evaluate the answer through an ICS lens. Patching immediately, blocking network traffic, or shutting down a process may be correct in IT — but in an OT environment, these actions can cause safety incidents or production outages. The exam tests whether you understand when standard IT security practice must be adapted for industrial contexts.
Manage the 3-hour window deliberately: Like the GPEN, GICSP's 3-hour exam leaves less buffer than GIAC's 4-hour certifications. Practice under timed conditions consistently so your pace is automatic. Use the skip function for questions that require extended lookup time and return to them after working through the rest of the paper.
Use standards as anchors: Many GICSP questions reference specific standards frameworks — NERC CIP, IEC 62443, or NIST SP 800-82. Knowing which framework applies to which sector and requirement area allows you to anchor uncertain answers to a reliable source. Include key standards provisions in your index with page references for fast retrieval.
Frequently Asked Questions
Ready to Test Your GICSP Knowledge?
Start with a mixed set to assess your readiness across both IT and OT domains, then use topic-specific tests to close the gaps before exam day.
Start GICSP Practice Test 1 →
