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ECCouncil NDE
The EC‑Council Network Defense Essentials (NDE) certification teaches entry‑level professionals core concepts of network fundamentals, security devices, segmentation, OS hardening, and wireless protection, preparing them to defend modern enterprise infrastructures.
120
Minutes
75
Questions
70/100
Passing Score
$75
Exam Cost
Who Should Take This
Ideal for recent graduates, junior IT staff, or aspiring security analysts with basic networking knowledge, this certification validates their ability to implement fundamental defensive measures. Learners seek to launch a network defense career, gain credibility, and meet employer expectations for entry‑level cybersecurity roles.
What's Covered
1
Network Fundamentals
2
Network Security Devices
3
Network Segmentation and Architecture
4
Operating System Security
5
Wireless Network Security
6
Cloud Security Fundamentals
7
Cryptography Basics
8
Security Monitoring and Threat Intelligence
9
Data Protection and Compliance
What's Included in AccelaStudy® AI
Adaptive Knowledge Graph
Practice Questions
Lesson Modules
Console Simulator Labs
Exam Tips & Strategy
20 Activity Formats
Course Outline
60 learning goals
1
Network Fundamentals
3 topics
OSI and TCP/IP models
- Identify the seven layers of the OSI model and describe how each layer contributes to network data encapsulation and protocol mapping.
- Describe TCP/IP suite components including TCP three-way handshake, UDP connectionless transport, IP routing, ICMP diagnostics, and ARP resolution.
- Identify common network services and port numbers including HTTP 80, HTTPS 443, FTP 21, SSH 22, SMTP 25, DNS 53, DHCP 67-68, and SNMP 161.
IP addressing and subnetting
- Explain IPv4 address classes, subnet masks, CIDR notation, and the distinction between public, private, and loopback address ranges.
- Describe IPv6 addressing types, notation formats, prefix lengths, and dual-stack and tunneling transition mechanisms from IPv4.
- Apply subnetting to divide a network into segments and calculate network addresses, broadcast addresses, and usable host ranges for each subnet.
Network devices and topologies
- Describe network device functions including routers, switches, hubs, bridges, wireless access points, and load balancers in traffic management.
- Identify network topologies including star, mesh, ring, bus, and hybrid and explain their reliability, scalability, and security tradeoffs.
- Analyze a network topology diagram to identify single points of failure, bandwidth bottlenecks, and redundancy gaps requiring design improvements.
2
Network Security Devices
3 topics
Firewalls and ACLs
- Describe firewall types including packet filtering, stateful inspection, application proxy, and next-generation firewalls and their filtering mechanisms.
- Explain ACL concepts including permit and deny rules, implicit deny, rule ordering precedence, and standard versus extended ACL scope.
- Configure firewall rules to control traffic flow based on source and destination IP addresses, ports, and protocols while maintaining implicit deny.
- Analyze a firewall rule set to identify overly permissive entries, shadowed rules, and security gaps that could permit unauthorized access.
IDS/IPS systems
- Describe IDS and IPS deployment including signature-based and anomaly-based detection, inline versus passive modes, and alert generation workflows.
- Identify network attacks detectable by IDS/IPS including port scans, SYN floods, brute force authentication, and exploit signature matches.
- Apply IDS alert triage to classify detections as true positives, false positives, or informational events and determine response priorities.
VPN and remote access
- Describe VPN types including site-to-site, remote access, IPsec tunnel, and SSL/TLS VPN and their encryption and authentication mechanisms.
- Configure a VPN connection for remote access including protocol selection, authentication configuration, and encrypted tunnel verification procedures.
3
Network Segmentation and Architecture
2 topics
Segmentation concepts
- Explain network segmentation using VLANs, DMZ architecture, and security zones to isolate sensitive systems and control inter-zone traffic.
- Apply segmentation principles to place servers, workstations, IoT devices, and guest networks into appropriate security zones with access policies.
- Analyze a network architecture diagram to identify segmentation weaknesses, missing controls, and lateral movement risks requiring improvement.
Network address translation and proxies
- Describe NAT types including static, dynamic, and PAT and explain how NAT provides address conservation and basic network boundary protection.
- Explain proxy server functions including web proxies, reverse proxies, and content filtering and their role in network security architecture.
4
Operating System Security
3 topics
Windows hardening
- Describe Windows security features including UAC, Windows Defender, BitLocker, Windows Firewall, Event Viewer, and Group Policy security settings.
- Apply Windows hardening by disabling unnecessary services, configuring password policies, enabling audit logging, and applying CIS security baselines.
- Configure Windows Update and patch management to ensure timely security patch deployment across workstations and server systems.
Linux hardening
- Describe Linux security mechanisms including file permissions, sudo, SELinux, AppArmor, iptables, nftables, and package manager integrity verification.
- Apply Linux hardening including SSH key authentication, root login restriction, fail2ban configuration, and unnecessary service deactivation.
- Analyze Linux system logs to identify brute force authentication attempts, unauthorized privilege escalation, and suspicious process execution.
User access management
- Describe user account security concepts including least privilege, separation of duties, account lifecycle management, and service account hardening.
- Apply user access controls by creating limited accounts, managing group memberships, implementing password complexity policies, and scheduling access reviews.
- Evaluate user access configurations to identify excessive permissions, dormant accounts, and privilege creep risks requiring access remediation.
5
Wireless Network Security
1 topic
Wireless protocols and threats
- Describe wireless protocols WEP, WPA, WPA2-Personal, WPA2-Enterprise, and WPA3 and compare their encryption strength and authentication methods.
- Identify wireless threats including rogue access points, evil twin attacks, deauthentication floods, wardriving, and wireless eavesdropping techniques.
- Configure a secure wireless network using WPA3, 802.1X enterprise authentication, SSID management, MAC filtering, and client isolation settings.
- Analyze a wireless environment to detect rogue access points, weak encryption configurations, unauthorized devices, and recommend improvements.
6
Cloud Security Fundamentals
2 topics
Cloud models and controls
- Describe cloud service models IaaS, PaaS, SaaS and explain shared responsibility boundaries defining provider versus customer security duties.
- Identify cloud deployment models including public, private, hybrid, and community clouds and describe their security and compliance characteristics.
- Apply cloud security controls including IAM policy configuration, MFA enforcement, storage encryption, and network security group rule definition.
Cloud threats and data protection
- Identify cloud threats including storage misconfiguration, insecure APIs, account hijacking, data exfiltration, and shadow IT cloud service usage.
- Apply cloud data protection including encryption key management, automated backup configuration, and secure data lifecycle procedures.
- Analyze cloud security posture to identify misconfigurations, excessive permissions, and unprotected resources and recommend remediation steps.
7
Cryptography Basics
2 topics
Encryption and hashing
- Describe symmetric algorithms AES, 3DES, asymmetric algorithms RSA, ECC, Diffie-Hellman, and their use cases for data confidentiality and key exchange.
- Explain hashing algorithms MD5, SHA-1, SHA-256, SHA-3 and their application for integrity verification, password storage, and digital signature generation.
- Apply encryption to protect data at rest using disk encryption and data in transit using TLS protocol configuration and certificate deployment.
PKI and digital certificates
- Describe PKI infrastructure including certificate authorities, registration authorities, digital certificates, CRLs, OCSP, and certificate trust chains.
- Apply certificate management by requesting, installing, and validating SSL/TLS certificates and troubleshooting certificate trust chain issues.
8
Security Monitoring and Threat Intelligence
2 topics
Log management
- Describe security monitoring concepts including log sources, centralized collection, event correlation, baseline analysis, and anomaly detection.
- Identify key log sources including firewall, system event, authentication, DNS, web server, and application logs and their security monitoring value.
- Apply log analysis to identify suspicious patterns including brute force attempts, unusual traffic volumes, off-hours access, and policy violations.
- Analyze security events from multiple log sources to correlate activity and determine whether patterns indicate an active security incident.
Threat landscape awareness
- Describe threat actor categories including nation-state, organized crime, hacktivists, insiders, and opportunistic attackers and their motivations.
- Identify common network attack techniques including DoS, DDoS, MITM, phishing, malware distribution, and privilege escalation methods.
- Analyze a threat scenario to determine the likely actor, attack vector, and infrastructure impact and recommend proportionate defensive measures.
9
Data Protection and Compliance
2 topics
Data security
- Describe data classification levels including public, internal, confidential, and restricted and explain handling requirements for each level.
- Apply data protection measures including encryption at rest, secure file transfer, data masking, tokenization, and secure disposal procedures.
- Implement backup strategies including full, incremental, and differential backups with verification testing and offsite replication for recovery.
Governance and compliance
- Identify security frameworks including NIST CSF, ISO 27001, and CIS Controls and describe their application to organizational security programs.
- Describe compliance requirements of GDPR, HIPAA, PCI-DSS, and SOX including data protection obligations and security control mandates.
- Analyze organizational security posture against a compliance framework to identify control gaps and recommend improvements for regulatory alignment.
Scope
Included Topics
- All modules in EC-Council Network Defense Essentials covering network security fundamentals, OS hardening, cloud security, and cryptography basics.
- Network protocols, addressing, devices, firewalls, IDS/IPS, VPN, wireless security, and monitoring.
- Windows and Linux security hardening, user access management, and endpoint protection.
- Cloud service models, shared responsibility, and basic cloud security controls.
- Cryptography including symmetric/asymmetric algorithms, hashing, PKI, and certificates.
Not Covered
- Advanced network defense and SIEM deployment covered by CND.
- Penetration testing and ethical hacking covered by CEH.
- Digital forensics investigation covered by DFE and CHFI.
- Advanced cryptographic design and protocol engineering.
- Enterprise zero trust architecture implementation.
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