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Certified Network Defender (CND v3) training and exam prep - EC-Council's DoD 8140-approved, blue-team network defence certification, with hands-on labs.
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The Certified Network Defender (CND v3) is EC-Council's blue-team network defence certification. Where the Certified Ethical Hacker teaches you to attack, CND teaches you to defend - how to design secure networks, protect them, detect threats and respond to incidents. Version 3 covers modern environments, including cloud platforms (AWS, Azure, GCP), IoT protection, endpoint security and threat intelligence, with a strong defence-in-depth focus. The certification is earned by passing one exam (exam code 312-38): 100 multiple-choice questions in 240 minutes (4 hours), taken online via the EC-Council exam portal or Pearson VUE. The passing score is scaled and varies by exam form (commonly cited in the 60-85% range). The official course is practitioner-oriented, with hands-on labs and live ranges.
CND is a career-defining blue-team credential. Because it is DoD 8140/8570 approved and ISO/IEC 17024 accredited, it is widely recognised - especially for US government, military and defense-contractor roles that mandate an approved baseline. It proves you can defend modern networks, not just describe them, and it pairs naturally with the Certified Ethical Hacker: defence and offence together make a complete security professional.
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CND is designed for people who defend networks. It is ideal for: - Network and system administrators moving into security - Network security engineers and administrators - SOC analysts and blue-team staff - Security analysts and anyone entering network defence - Government/defense staff needing a DoD-approved baseline
How to earn it:
1. Prepare with a CND v3 exam-prep course that includes hands-on labs - that is what we provide.
2. Register for the exam (exam code 312-38) through EC-Council or Pearson VUE. There are no strict prerequisites; networking knowledge helps, and official training m...
Understanding the exam and certification process is an important step before beginning your preparation. Each certification follows a specific exam pattern, including the number and type of questions, exam duration, delivery method, eligibility requirements, and certification criteria. This section explains what to expect on exam day and how the certification process works, helping you prepare with a clear understanding of the requirements and next steps.
Exam details verified on 16 August 2026. The CND exam (code 312-38, v3) is 100 multiple-choice questions in 240 minutes; the passing score is scaled and varies by form. CND is DoD 8140/8570 approved, ISO/IEC 17024 accredited and NICE-mapped. It is valid 3 years and maintained with 120 ECE credits plus an annual membership fee. The voucher is commonly cited around US$550 but pricing varies. Confirm current details and pricing at eccouncil.org, and the DoD mapping at the DoD Cyber Exchange.
CND is ideal for: - Network and system administrators moving into security - Network security engineers and administrators - SOC analysts and blue-team staff - Security analysts and those entering network defence - Government and defense staff needing a DoD-approved baseline If you want the offensive side (attacking systems to find weaknesses), our Certified Ethical Hacker (CEH) course is the natural pair - many professionals hold both.
