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At The Knowledge Academy, our classroom-based training courses allow delegates to study and learn in a friendly, engaging, and interactive environment. We ensure the very best level of teaching, with first-rate instructors, resources, and state-of-the-art facilities. We provide courses of varying durations and can arrange weekend and residential courses in order to suit your requirements.

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Our online-based training courses aim to provide you with a complete training experience. Due to their flexibility, these courses are greatly suited to busy working professionals, or any individual who would prefer the convenience of an online training course.

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Our Virtual training courses provide you with the option to learn using a specialised simulated virtual environment. In this environment, our expert training instructors will be able to convey information and provide you with the all the knowledge you require to earn your qualification with The Knowledge Academy. As the largest global training provider, this method of training allows us to extend our training scope to those who may not be able to attend a classroom course itself, but would like to receive direct training and support from an instructor.
Using this training delivery method, you would benefit from the convenience of remote access and the elimination of the time and cost associated with travelling to a training venue.

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IT Security

Certified Network Defender (CND)

  • Exam Pass Guarantee: Enrol in any of our Certified Network Defender (CND) c
  • GUARANTEED LOWEST PRICE IN THE INDUSTRY with CND Exam Preparation in assessing&n
  • Our 4 day Certified Network Defender (CND) Exam Preparation Course foc
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Course Information

Certified Network Defender (CND) Outline


The course covers the following 14 modules:


Module 01: Computer Network Defence Fundamentals

  • Network Fundamentals

  • Network Components

  • TCP/IP Networking Basics

  • TCP/IP Protocol Stack

  • IP Addressing

  • Computer Network Defence (CND)

  • CND Triad

  • CND Process

  • CND Actions

  • CND Approaches


Module 02: Network Security Threats, Vulnerabilities, and Attacks

  • Essential Terminologies

  • Network Security Concerns

  • Network Security Vulnerabilities

  • Network Reconnaissance Attacks

  • Network Access Attacks

  • Denial of Service (DoS) Attacks

  • Distributed Denial-of-Service Attack (DDoS)

  • Malware Attacks


Module 03: Network Security Controls, Protocols, and Devices

  • Fundamental Elements of Network Security

  • Network Security Controls

  • User Identification, Authentication, Authorisation and Accounting

  • Types of Authorisation Systems

  • Authorisation Principles

  • Cryptography

  • Security Policy

  • Network Security Devices

  • Network Security Protocols


Module 04: Network Security Policy Design and Implementation

  • What is Security Policy?

  • Internet Access Policies

  • Acceptable-Use Policy

  • User-Account Policy

  • Remote-Access Policy

  • Information-Protection Policy

  • Firewall-Management Policy

  • Special-Access Policy

  • Network-Connection Policy

  • Business-Partner Policy

  • Email Security Policy

  • Passwords Policy

  • Physical Security Policy

  • Information System Security Policy

  • Bring Your Own Devices (BYOD) Policy

  • Software/Application Security Policy

  • Data Backup Policy

  • Confidential Data Policy

  • Data Classification Policy

  • Internet Usage Policies

  • Server Policy

  • Wireless Network Policy

  • Incidence Response Plan (IRP)

  • User Access Control Policy

  • Switch Security Policy

  • Intrusion Detection and Prevention (IDS/IPS) Policy

  • Personal Device Usage Policy

  • Encryption Policy

  • Router Policy

  • Security Policy Training and Awareness

  • ISO Information Security Standards

  • Payment Card Industry Data Security Standard (PCI-DSS)

  • Health Insurance Portability and Accountability Act (HIPAA)

  • Information Security Acts: Sarbanes Oxley Act (SOX)

  • Information Security Acts: Gramm-Leach-Bliley Act (GLBA)

  • Information Security Acts: The Digital Millennium Copyright Act (DMCA) and Federal Information Security Management Act (FISMA)

  • Other Information Security Acts and Laws


Module 05: Physical Security

  • Physical Security

  • Access Control Authentication Techniques

  • Physical Security Controls

  • Other Physical Security Measures

  • Workplace Security

  • Personnel Security: Managing Staff Hiring and Leaving Process

  • Laptop Security Tool: EXO5

  • Environmental Controls

  • Physical Security: Awareness /Training

  • Physical Security Checklists


Module 06: Host Security

  • Host Security

  • OS Security

  • Linux Security

  • Securing Network Servers

  • Hardening Routers and Switches

  • Application/software Security

  • Data Security

  • Virtualisation Security


Module 07: Secure Firewall Configuration and Management

  • Firewalls and Concerns

  • What Firewalls Does?

  • What should you not Ignore?: Firewall Limitations

  • How Does a Firewall Work?

  • Firewall Rules

  • Types of Firewalls

  • Firewall Technologies

  • Firewall Topologies

  • Firewall Rule Set & Policies

  • Firewall Implementation

  • Firewall Administration

  • Firewall Logging and Auditing

  • Firewall Anti-evasion Techniques

  • Why Firewalls are Bypassed?

  • Full Data Traffic Normalisation

  • Data Stream-based Inspection

  • Vulnerability-based Detection and Blocking

  • Firewall Security Recommendations and Best Practices

  • Firewall Security Auditing Tools


Module 08: Secure IDS Configuration and Management

  • Intrusions and IDPS

  • IDS

  • Types of IDS Implementation

  • IDS Deployment Strategies

  • Types of IDS Alerts

  • IPS

  • IDPS Product Selection Considerations

  • IDS Counterparts


Module 09: Secure VPN Configuration and Management

  • Understanding Virtual Private Network (VPN)

  • How VPN works?

  • Why to Establish VPN ?

  • VPN Components

  • VPN Concentrators

  • Types of VPN

  • VPN Categories

  • Selecting Appropriate VPN

  • VPN Core Functions

  • VPN Technologies

  • VPN Topologies

  • Common VPN Flaws

  • VPN Security

  • Quality Of Service and Performance in VPNs


Module 10: Wireless Network Defense

  • Wireless Terminologies

  • Wireless Networks

  • Wireless Standard

  • Wireless Topologies

  • Typical Use of Wireless Networks

  • Components of Wireless Network

  • WEP (Wired Equivalent Privacy) Encryption

  • WPA (Wi-Fi Protected Access) Encryption

  • WPA2 Encryption

  • WEP vs. WPA vs. WPA2

  • Wi-Fi Authentication Method

  • Wi-Fi Authentication Process Using a Centralised Authentication Server

  • Wireless Network Threats

  • Bluetooth Threats

  • Wireless Network Security

  • Wi-Fi Discovery Tools

  • Locating Rogue Access points

  • Protecting from Denial-of-Service Attacks: Interference

  • Assessing Wireless Network Security

  • Wi-Fi Security Auditing Tool: AirMagnet WiFi Analyser

  • WPA Security Assessment Tool

  • Wi-Fi Vulnerability Scanning Tools

  • Deploying Wireless IDS (WIDS) and Wireless IPS (WIPS)

  • WIPS Tool

  • Configuring Security on Wireless Routers

  • Additional Wireless Network Security Guidelines


Module 11: Network Traffic Monitoring and Analysis

  • Network Traffic Monitoring and Analysis(Introduction)

  • Network Monitoring: Positioning your Machine at Appropriate Location

  • Network Traffic Signatures

  • Packet Sniffer: Wireshark

  • Detecting OS Fingerprinting Attempts

  • Detecting PING Sweep Attempt

  • Detecting ARP Sweep/ ARP Scan Attempt

  • Detecting TCP Scan Attempt

  • Detecting SYN/FIN DDOS Attempt

  • Detecting UDP Scan Attempt

  • Detecting Password Cracking Attempts

  • Detecting FTP Password Cracking Attempts

  • Detecting Sniffing (MITM) Attempts

  • Detecting the Mac Flooding Attempt

  • Detecting the ARP Poisoning Attempt

  • Additional Packet Sniffing Tools

  • Network Monitoring and Analysis

  • Bandwidth Monitoring


Module 12: Network Risk and Vulnerability Management

  • What is Risk?

  • Risk Levels

  • Risk Matrix

  • Key Risk Indicators(KRI)

  • Risk Management Phase

  • Enterprise Network Risk Management

  • Vulnerability Management


Module 13: Data Backup and Recovery

  • Introduction to Data Backup

  • RAID (Redundant Array Of Independent Disks) Technology

  • Storage Area Network (SAN)

  • Network Attached Storage (NAS)

  • Selecting Appropriate Backup Method

  • Choosing the Right Location for Backup

  • Backup Types

  • Conducting Recovery Drill Test

  • Data Recovery

  • Windows Data Recovery Tool

  • RAID Data Recovery Services

  • SAN Data Recovery Software

  • NAS Data Recovery Services


Module 14: Network Incident Response and Management

  • Incident Handling and Response

  • Incident Response Team Members: Roles and Responsibilities

  • First Responder

  • Incident Handling and Response Process

  • Overview of IH&R Process Flow

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Certified Network Defender (CND) Overview

This 4-day official EC Council course provides a detailed understanding of and practical skills for network defence, including how to protect, detect and respond to network attacks. You will learn network defence fundamentals including the application of network security controls, protocols, perimeter appliances, secure IDS, VPN and firewall configuration.

You will also learn the intricacies of network traffic signature, analysis and vulnerability scanning in order to design successful network security policies and incident response plans. At the end of the course, you will take the Certified Network Defender exam, allowing you to achieve Certified Network Defender (CND) certification.

Certified Network Defender certification is vendor-neutral, hands-on and skills-based. Aligned to a job-based cybersecurity education framework presented by the National Initiative of Cybersecurity Education (NICE), it maps to highly-desired global system and network security roles. This makes it highly sought after by employers seeking assurance that potential employees have the practical skills needed to carry out their role effectively.


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Who should attend?

The course is aimed at anybody involved in network operations. This includes:

Network Administrators

Network Security Administrators

Network Security Engineer

Network Defence Technicians

CND Analysts

Security Analyst

Security Operator



There are no prerequisites for this course, but a basic understanding of network security will be an advantage.

Certified Network Defender (CND) Examination

The EC Council Certified Network Defender exam consists of 100 multiple choice questions and lasts 4 hours. It must be booked separately at a Pearson Vue testing centre, for which we give you an exam voucher. Completion awards you CND certification.

Available delivery methods for this course:





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Best Price in the Industry

We have the guaranteed best price for our courses in the industry

Trusted & Approved

The Knowledge Academy's Certified Ethical Hacker training courses are accredited by EC-Council

Resources Included

Resources are included for a comprehensive learning experience

Various Delivery Methods

Flexible delivery methods are available depending on your learning style

Certified Network Defender (CND) FAQs

Yes, this course is accredited by EC-Council and we are an Accredited Training Centre (ATC).
There are no prerequisites, but a basic understanding of network security will be an advantage.
An exam voucher for the exam is included. This must be booked separately through Pearson Vue.
Your instructor will be a security expert with many years of experience in network defence.
The course will begin at 9am and finish at 5pm each day.

Some of our clients

"Really good course and well organised. Trainer was great with a sense of humour - his experience allowed a free flowing course, structured to help you gain as much information & relevant experience whilst helping prepare you for the exam"

Joshua Davies, Thames Water

"...the trainer for this course was excellent. I would definitely recommend (and already have) this course to others."

Diane Gray, Shell

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