EC-Council Certified Network Defender (CND) Program
The CND course gives you a full introduction to network security from a defender’s perspective. You learn how to protect, monitor, detect and respond to threats in modern network environments.
Description
The CND course gives you a full introduction to network security from a defender’s perspective. You learn how to protect, monitor, detect and respond to threats in modern network environments.
The training includes theory and hands-on labs, teaching you how to secure networks, configure firewalls and IDS/IPS, monitor traffic, and implement defensive strategies across devices, endpoints, cloud and IoT. The goal is to equip you to build and maintain secure networks for organisations.
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What You Will Learn
This training teaches you how to protect, monitor and defend networks using real security tools and practical defensive strategies.
Part 1- Network security fundamentals, attacker techniques and the defender’s role
Part 2- Network protocols, traffic analysis and identifying abnormal behaviour
Part 3- Securing network perimeter devices, including firewalls, IDS/IPS and VPN technologies
Part 4- Endpoint security, hardening Windows and Linux systems and reducing attack surfaces
Part 5- Network security policies, access control, authentication and secure configurations
Part 6- Wireless network security, secure Wi-Fi design and common wireless attack detection
Part 7- Monitoring and detection using logs, SIEM tools, traffic captures and event correlation
Part 8- Incident response, threat handling, containment and recovery procedures
Part 9- Cloud and virtual network security, securing hybrid and on-prem environments
Part 10- Business continuity, disaster recovery and preparing organisations for resilience
Certification & Exam
After you complete the CND training, you can register for the CND certification exam. The exam tests your ability to secure networks, detect threats and apply defensive measures in real environments.
The exam consists of 100 multiple-choice questions and lasts 4 hours. You must reach the required passing score to earn the certification. The exam can be taken at an authorised test centre or through remote proctoring.
When you pass the exam, you receive the CND certificate, confirming your skills in network defence, monitoring, incident handling and security operations.
What You Will Achieve
By the end of the course, you will be able to:
Secure and harden networks, endpoints and perimeter devices using industry-standard practices
Monitor network traffic and detect suspicious or malicious activity
Configure and manage firewalls, IDS/IPS, VPNs and other defensive technologies
Respond to network incidents and apply containment and recovery steps
Implement security policies, access controls and secure configurations
Support secure operations across on-prem, cloud and hybrid environments
Training Providers
1 providerFAQs
General FAQs
CNS is an entry to mid level certification that focuses on network security fundamentals. It covers how to protect networks from common threats and how to apply basic security controls in real environments.
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