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EC-COUNCIL

EC-Council Network Defense Essentials

NDENetwork Defense Essentials (N|DE)

The EC-Council Network Defense Essentials (NDE) certification introduces the core concepts of information security and network defense, covering identification, authentication, authorization, and essential security controls. Designed for beginners with no prior IT or cybersecurity experience, it combines 12 modules, 33 hands-on labs, and a real-world CTF capstone to build practical skills. Earning NDE validates foundational network defense knowledge and prepares you for more advanced EC-Council certifications like CND, CCT, and CEH.

1441 practice questions · Updated 2026-07-30

7Domains
33Objectives
240Concepts
1441Questions

NDE Curriculum

Every domain, objective, and concept the NDE exam measures.

  1. Network Fundamentals
  2. Network Security Fundamentals
  3. Defense in Depth
  4. Network Security Controls
  5. Access Control Models
  6. Authentication and Authorization
  7. Network Threats and Vulnerabilities
  8. Security Policies and Procedures

Network security controls and protocols

10 concepts · 45 questions
  1. Network Security Controls Overview
  2. Access Control Models
  3. Authentication Mechanisms
  4. Authorization and Accounting
  5. Network Security Protocols
  6. Firewalls and Intrusion Detection/Prevention
  7. VPNs and Remote Access Security
  8. Wireless Network Security
  9. Network Segmentation and Isolation
  10. Security Policies and Procedures
  1. Access Control Principles
  2. Access Control Terminologies
  3. Access Control Models
  1. IAM Fundamentals
  2. Identity Lifecycle Management
  3. Authentication Methods
  4. Authorization Models
  5. Access Control Mechanisms
  6. Single Sign-On (SSO)
  7. Federated Identity Management
  8. Privileged Access Management
  9. IAM Best Practices
  1. Authentication mechanisms
  2. Authorization systems
  3. Access control models
  4. Authentication vs authorization
  5. Multi-factor authentication
  6. Single sign-on
  7. Directory services

  1. Regulatory Frameworks Overview
  2. Compliance Requirements
  3. Framework Comparison
  4. Implementation in Network Defense

Security policies and governance

6 concepts · 49 questions
  1. Security Policies
  2. Security Governance
  3. Security Standards, Baselines, and Guidelines
  4. Security Procedures
  5. Policy Lifecycle
  6. Compliance and Legal Considerations

Security and awareness training

6 concepts · 47 questions
  1. Security awareness training fundamentals
  2. Topics covered in security awareness training
  3. Roles and responsibilities in security training
  4. Training delivery methods
  5. Measuring training effectiveness
  6. Continuous security awareness
  1. Physical Security Concepts
  2. Physical Security Attack Vectors
  1. Workplace Security Fundamentals
  2. Physical Security Controls
  3. Environmental Controls
  4. Personnel Security
  5. Visitor Management
  6. Incident Response for Physical Security

  1. Network Segmentation Fundamentals
  2. Segmentation Methods
  3. Perimeter Isolation Concepts
  4. Segmentation Implementation
  5. Segmentation Verification
  1. Firewall Fundamentals
  2. Firewall Types
  3. Firewall Architectures
  4. Firewall Rule Configuration
  5. Firewall Policies and Best Practices
  6. Firewall Deployment Scenarios
  7. Firewall Management and Monitoring
  8. Firewall Limitations and Evasion
  1. IDS/IPS Fundamentals
  2. IDS/IPS Types
  3. Detection Methods
  4. IDS/IPS Architecture
  5. Response Actions
  6. Evasion Techniques
  7. Implementation Considerations
  1. Proxy Server Fundamentals
  2. Proxy Server Types
  3. Proxy Server Functions
  4. Proxy Server Security Implications
  5. VPN Fundamentals
  6. VPN Protocols
  7. VPN Types
  8. VPN Security Considerations
  9. Secure Network Communication Principles
  10. Encryption and Tunneling
  11. Integration of Proxies and VPNs
  12. Best Practices for Secure Communication
  1. SIEM Fundamentals
  2. SIEM Data Collection and Analysis
  3. SIEM Deployment and Use Cases
  4. UBA/UEBA Fundamentals
  5. Baseline and Anomaly Detection
  6. UBA/UEBA Integration and Alerts
  7. Endpoint Security Fundamentals
  8. Endpoint Protection Technologies
  9. Endpoint Detection and Response (EDR)
  10. Endpoint Security Management and Best Practices

  1. Virtualization Fundamentals
  2. Types of Virtualization
  3. Hypervisor Security
  4. Virtual Machine Security
  5. Virtual Network Security
  6. Virtualization-Specific Threats
  7. Virtualization Security Best Practices
  1. Containerization fundamentals
  2. Container orchestration basics
  3. Container security challenges
  4. Container isolation and kernel security
  5. Securing container images
  6. Container runtime security
  7. Container network security
  8. Container secrets management
  9. Container monitoring and logging
  10. Compliance and governance for containers

Cloud computing models and architecture

5 concepts · 25 questions
  1. Cloud Computing Models
  2. Cloud Deployment Models
  3. Cloud Architecture Components
  4. Cloud Service Models Comparison
  5. Cloud Deployment Model Selection
  1. Cloud Security Risks
  2. Cloud Attacks
  3. Cloud Security Best Practices

  1. Wireless Network Fundamentals
  2. Wireless Standards and Protocols
  3. Wireless Network Components
  4. Wireless Network Topologies
  5. Wireless Security Mechanisms
  1. WEP Encryption
  2. WPA Encryption
  3. WPA2 Encryption
  4. WPA3 Encryption
  5. Open Authentication
  6. Shared Key Authentication
  7. EAP Authentication Methods
  8. 802.1X Authentication
  9. Pre-Shared Key (PSK) Authentication
  10. Enterprise Authentication

Mobile Device Management (MDM) concepts

12 concepts · 57 questions
  1. Definition and purpose of MDM
  2. MDM architecture and components
  3. Device enrollment and provisioning
  4. Policy management and enforcement
  5. Application management
  6. Content management
  7. Security features of MDM
  8. Compliance and reporting
  9. Integration with other systems
  10. MDM deployment models
  11. BYOD and COPE considerations
  12. MDM challenges and best practices
  1. Mobile Device Threat Landscape
  2. Mobile Device Security Controls
  3. Mobile Platform Security Features
  4. BYOD and Mobile Policy
  5. Mobile App Security
  6. Mobile Network Security

IoT architecture and security controls

8 concepts · 50 questions
  1. IoT Architecture Layers
  2. IoT Security Challenges
  3. IoT Security Controls
  4. IoT Threat Modeling
  5. IoT Device Hardening
  6. IoT Network Security
  7. IoT Data Protection
  8. IoT Compliance and Standards

Cryptographic techniques and algorithms

6 concepts · 39 questions
  1. Symmetric Encryption
  2. Asymmetric Encryption
  3. Hash Functions
  4. Digital Signatures
  5. Key Exchange Mechanisms
  6. Cryptographic Attacks
  1. PKI Overview
  2. Digital Certificates
  3. Certificate Authorities (CAs)
  4. Registration Authorities (RAs)
  5. Certificate Lifecycle Management
  6. Certificate Revocation
  7. Public and Private Key Pairs
  8. Trust Models
  9. PKI Standards and Protocols
  10. PKI Implementation and Best Practices

Data encryption techniques

7 concepts · 44 questions
  1. Symmetric encryption
  2. Asymmetric encryption
  3. Hybrid encryption
  4. Block ciphers
  5. Stream ciphers
  6. Key management
  7. Encryption applications

Data backup and retention

9 concepts · 34 questions
  1. Data backup fundamentals
  2. Backup types
  3. Backup storage media
  4. Backup strategies
  5. Data retention policies
  6. Retention periods and compliance
  7. Data archival vs. backup
  8. Backup testing and verification
  9. Disaster recovery and business continuity

Data Loss Prevention (DLP) concepts

8 concepts · 49 questions
  1. DLP Definition and Purpose
  2. Types of Data at Risk
  3. DLP Architecture Components
  4. DLP Deployment Modes
  5. DLP Policy Creation and Enforcement
  6. Data Classification and Fingerprinting
  7. DLP Incident Response and Remediation
  8. DLP Challenges and Best Practices

Network traffic monitoring concepts

7 concepts · 47 questions
  1. Network traffic monitoring definition
  2. Types of network traffic data
  3. Monitoring techniques
  4. Monitoring tools
  5. Traffic analysis metrics
  6. Baseline and anomaly detection
  7. Monitoring challenges
  1. Baseline traffic definition
  2. Baseline establishment process
  3. Traffic metrics and characteristics
  4. Signature identification
  5. Signature types
  6. Signature creation and application
  7. Baseline vs. real-time comparison
  8. Anomaly detection
  1. Network sniffing fundamentals
  2. Passive vs. active sniffing
  3. Sniffing on switched networks
  4. Sniffing tools
  5. Traffic capture and analysis
  6. Protocol analysis
  7. Traffic flow analysis
  8. Detecting sniffing activity
  1. Protocol Analysis Fundamentals
  2. Traffic Capture Techniques
  3. Packet Structure and Fields
  4. Traffic Filtering and Display
  5. Traffic Flow Analysis
  6. Protocol Anomaly Detection
  7. Performance and Bandwidth Monitoring
  8. Reporting and Documentation
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Percentages reflect share of the current practice bank, not official exam weightings — no structured per-skill weight is published for NDE, so none is invented.