Certified EC-Council Instructor (CEI) Practice Tests

Use this CEI practice exam to prepare for Certified EC-Council Instructor (CEI) with realistic questions, detailed explanations, and focused study modes. The practice bank includes 611 questions for EC-Council CEI, so you can review the exam steadily instead of relying on one long cram session.

As you practice, pay extra attention to patterns in your missed answers. Start with short sessions to identify weak areas, then move into timed quizzes once your accuracy is consistent.

The explanations are especially useful when you want to connect exam wording to the responsibilities and scenarios described in the official certification guidance. Use the free preview first, then unlock the full question bank when you are ready to build a complete study routine.

The Certified EC-Council Instructor (C|EI) certification, associated with exam code 312-75, is EC-Council's credential for professionals who wish to become authorized instructors delivering EC-Council's suite of cybersecurity certification programs — including CEH, CHFI, ECSA, LPT, CND, and others. The certification validates that a candidate possesses the pedagogical skills required to effectively teach technical security content to adult learners, covering core instructional competencies such as establishing credibility, managing the learning environment, delivering presentations, applying questioning techniques, and evaluating learner performance.

The C|EI program is built around adult learning principles and instructional design methodology, ensuring that certified instructors can adapt EC-Council's standardized course materials to diverse learner audiences. Earning the C|EI credential is a gateway to becoming an EC-Council Subject Matter Expert (SME), a designation reserved for professionals who contribute to curriculum development and deliver authoritative training content within the EC-Council ecosystem. Only individuals who meet stringent application and exam requirements are granted C|EI status, reflecting EC-Council's commitment to quality instruction across its Accredited Training Center (ATC) network.

The C|EI is designed for experienced cybersecurity professionals and trainers who wish to deliver official EC-Council certification courses through authorized training channels. Ideal candidates include independent security trainers, corporate training managers, academic instructors at technical institutions, and staff at EC-Council Accredited Training Centers (ATCs) who are already certified in the EC-Council program they intend to teach — for example, a Certified Ethical Hacker (CEH) who wants to train others toward the CEH credential.

Candidates should have an established background in hands-on security work and a demonstrated training or teaching history. This certification is not suited for entry-level professionals; it targets individuals with meaningful industry experience who are ready to transition into or formalize a role as a professional cybersecurity educator within the EC-Council framework.

Applicants must hold an active, current EC-Council certification in each program they intend to teach — for instance, candidates wishing to instruct CEH courses must themselves hold a valid CEH credential. All EC-Council certifications must be in good standing, with Continuing Education (ECE) credits kept current through the EC-Council Aspen Portal.

Candidates who do not already hold instructor credentials from another recognized body (such as CompTIA CTT+, Microsoft MCT, Cisco, PECB, Oracle, or VMware) must submit an experience letter on official organizational letterhead demonstrating a minimum of two years of active training or teaching involvement. Additionally, applicants must secure an endorsement from an EC-Council Accredited Training Center (ATC), though EC-Council may endorse the application at its own discretion if no ATC sponsor is available. Technical hands-on expertise with security technologies is also expected.

The CEI exam (312-75) consists of 50 multiple-choice questions and must be completed within 120 minutes. The exam is delivered through EC-Council's official exam portal (ECC Exam Center). Candidates must achieve a passing score of 70% to earn the certification.

The exam is scenario-based in nature, testing practical knowledge of instructional delivery rather than purely technical security content. It assesses a candidate's understanding of adult learning principles, instructional design, classroom management, and communication techniques in the context of delivering EC-Council certification courseware. No unscored or survey questions have been publicly documented for this exam.

Earning the C|EI credential authorizes professionals to deliver EC-Council's globally recognized cybersecurity certification programs — including the Certified Ethical Hacker (CEH), Computer Hacking Forensic Investigator (CHFI), Certified Network Defender (CND), and EC-Council Certified Security Analyst (ECSA) — through the worldwide ATC network. This opens direct revenue opportunities as an authorized trainer, with cybersecurity instructor rates typically ranging from $1,000 to $3,000+ per training day depending on geography and specialization. Certified instructors also gain access to EC-Council's secured instructor resource portal, which includes up-to-date presentation materials, lab environments, and course videos.

Beyond direct training income, the C|EI designation enhances professional credibility within the cybersecurity education sector, differentiating holders from uncredentialed trainers when competing for corporate training contracts or academic positions. C|EI holders may also be considered for EC-Council's Subject Matter Expert (SME) program, contributing to curriculum development and exam authoring. As demand for skilled cybersecurity professionals — and the training programs that produce them — continues to grow globally, the C|EI credential positions holders at the intersection of technical expertise and professional instruction.