You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
EC-COUNCILEC-Council Network Defense Essentials
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.
Exam formatProctored exam
DeliveryPearson VUE
Free questions1441
Content last reviewed 30 July 2026 · Up to date
The certification
What EC-Council Network Defense Essentials proves, and what it asks of you
What this certification covers, who it is written for, and what the exam itself looks like on the day.
7domains
33objectives
240concepts
US $299exam fee
What it is
What this certification is
What it validates, who it is written for, and the experience it assumes.
About this certification
The EC-Council Network Defense Essentials (NDE) certification is an entry-level credential that provides a comprehensive overview of network security fundamentals. The program covers key topics such as network security controls, identity and access management, cryptography, data security, and network traffic monitoring. With 12 modules and 33 guided labs simulating real-world scenarios, learners gain practical skills in defending networks against common threats.
NDE is designed for individuals starting their cybersecurity journey or switching careers, requiring no prior IT or cybersecurity experience. The curriculum emphasizes hands-on learning, including a CTF-style capstone project that challenges learners to apply their knowledge in live attack simulations. Upon completion, candidates earn a globally recognized certification that demonstrates foundational network defense competence and serves as a stepping stone to advanced EC-Council certifications such as Certified Network Defender (CND), Certified Cybersecurity Technician (CCT), and Certified Ethical Hacker (CEH).
Who it’s for
The Network Defense Essentials certification is ideal for students, recent graduates, career switchers, and IT professionals who are new to cybersecurity and want to build a strong foundation in network defense. It is also suitable for individuals in non-technical roles who need to understand network security concepts to collaborate effectively with security teams. No prior IT or cybersecurity experience is required, making it an accessible starting point for anyone interested in pursuing a career in network security, SOC operations, or ethical hacking.
Recommended experience
No prior IT or cybersecurity experience is required. A basic understanding of computer networks and operating systems is helpful but not mandatory. Familiarity with basic computer operations and file management; An interest in learning network security concepts and defensive techniques; Basic knowledge of networking concepts such as IP addresses, protocols, and the OSI model is beneficial
The syllabus
What you’ll learn
Every domain and objective EC-Council measures, with the weight they carry on the exam.
The official EC-Council exam outline · checked 30 July 2026 · See the source
Network Security Fundamentals and Access Control
- Fundamentals of network security and defense
- Network security controls and protocols
- Access control principles, terminologies, and models
- Identity and Access Management (IAM) concepts
- Authentication mechanisms and authorization systems
Administrative and Physical Security Controls
- Regulatory frameworks and compliance requirements
- Security policies and governance
- Security and awareness training
- Physical security concepts and attack vectors
- Workplace security and environmental controls
Technical Security Controls
- Network segmentation and perimeter isolation
- Firewall technologies, architectures, and best practices
- Intrusion Detection and Prevention Systems (IDS/IPS)
- Proxy servers, VPNs, and secure network communication
- SIEM, UBA/UEBA, and endpoint security solutions
Virtualization and Cloud Computing Security
- Virtualization concepts and security considerations
- Containerization technologies and security challenges
- Cloud computing models and architecture
- Cloud security risks, attacks, and best practices
Wireless, Mobile, and IoT Security
- Wireless network fundamentals and standards
- Wireless encryption and authentication mechanisms
- Mobile Device Management (MDM) concepts
- Mobile device threats and security controls
- IoT architecture and security controls
Cryptography, PKI, and Data Security
- Cryptographic techniques and algorithms
- Public Key Infrastructure (PKI) and digital certificates
- Data encryption techniques
- Data backup and retention
- Data Loss Prevention (DLP) concepts
Network Traffic Monitoring
- Network traffic monitoring concepts
- Baseline traffic analysis and signature identification
- Network sniffing techniques and traffic analysis
- Monitoring and analyzing network protocol traffic
On the day
The exam itself
Everything EC-Council publishes about sitting it, and nothing we inferred.
Prerequisites
No mandatory prerequisites — this certification has no required predecessor exam or credential.
CertificationEC-Council Network Defense Essentials
Exam formatProctored exam
DeliveryPearson VUE
LanguagesEnglish
PricingUS $299
After you pass
Where this credential goes next
The path EC-Council lays out, how the credential is kept, and where to book.
Step-by-step path to EC-Council Network Defense Essentials
Credential earnedEC-Council Network Defense Essentials Certification Renewal and maintenance
EC-Council certifications require renewal through continuing education credits. Specific renewal requirements for NDE are not published on the official exam page. Stay current with the latest technologies and maintain your certification.
Learn more about renewal requirements Lifecycle status
This certification is currently active and available. EC-Council maintains this certification to validate current skills and industry relevance.
Exam status: ActiveMaintained by EC-Council
Exam registration
Register for the exam through Pearson VUE, EC-Council’s authorized testing partner.
Schedule your examVisit the official EC-Council certification page for exam policies and requirements.
View the official pageYour coach
And when you are serious, your coach Pip takes over
Your coach in the app reads what you have answered with the book closed and tells you one thing to do tonight. It will not count an answer you gave with the page open, and it will tell you when you are not ready.
See how the coach worksBefore you book
Questions people ask
How does NDE relate to the Certified Network Defender (CND) certification?
NDE is an entry-level certification that covers the fundamentals of network defense. It is designed to prepare learners for more advanced EC-Council certifications such as CND, CCT, and CEH, which delve deeper into network security concepts and hands-on skills.
Do I need to earn a lower-level certification before taking the NDE exam?
No. EC-Council states that no prior IT or cybersecurity experience is required for NDE, and there are no mandatory prerequisite certifications.
Is the NDE exam hands-on or lab-based?
The NDE course includes 33 guided labs and a CTF-style capstone project that simulate real-world scenarios. The exam itself is proctored, but the hands-on labs and capstone are part of the training to validate practical skills.
What is the retake policy for the NDE exam?
EC-Council does not publish a specific retake policy for the NDE exam on the official page. Candidates should refer to the EC-Council candidate agreement or contact EC-Council for details.
What job roles does the NDE certification prepare me for?
NDE prepares individuals for entry-level cybersecurity roles such as network administrator, security analyst, SOC analyst, and other positions that require foundational network defense knowledge.
Can I recertify by passing a higher-level EC-Council exam?
EC-Council certifications require renewal through continuing education credits. Passing a higher-level exam like CND or CEH may contribute to renewal, but specific policies are not published for NDE.
Is the NDE exam available in multiple languages?
The official page does not specify available languages. EC-Council typically offers exams in English, and other languages may be available depending on the delivery provider. Contact EC-Council for confirmation.
Information freshness · Content last reviewed on 2026-07-30 Up to date
Practice free questions 1441 questions, free, no account needed.
The curriculum
The whole exam, mapped and written
Every domain, every objective, and every concept EC-Council measures — each one written out.
7domains
33objectives
240concepts
300free pages
The domains, and what sits inside them
Every objective below is a page you can open and practise now, without an account.
The official EC-Council exam outline · checked 30 July 2026 · See the source
1Network Security Fundamentals and Access Control205 questions
Fundamentals of network security and defense8 concepts · 9 pagesOpen →Network security controls and protocols10 concepts · 9 pagesOpen →Access control principles, terminologies, and models3 concepts · 5 pagesOpen →Identity and Access Management (IAM) concepts9 concepts · 10 pagesOpen →Authentication mechanisms and authorization systems7 concepts · 10 pagesOpen →
2Administrative and Physical Security Controls217 questions
Regulatory frameworks and compliance requirements4 concepts · 10 pagesOpen →Security policies and governance6 concepts · 10 pagesOpen →Security and awareness training6 concepts · 10 pagesOpen →Physical security concepts and attack vectors2 concepts · 6 pagesOpen →Workplace security and environmental controls6 concepts · 10 pagesOpen →
3Technical Security Controls227 questions
Network segmentation and perimeter isolation5 concepts · 8 pagesOpen →Firewall technologies, architectures, and best practices8 concepts · 8 pagesOpen →Intrusion Detection and Prevention Systems (IDS/IPS)7 concepts · 8 pagesOpen →Proxy servers, VPNs, and secure network communication12 concepts · 11 pagesOpen →SIEM, UBA/UEBA, and endpoint security solutions10 concepts · 12 pagesOpen →
4Virtualization and Cloud Computing Security168 questions
5Wireless, Mobile, and IoT Security249 questions
Wireless network fundamentals and standards5 concepts · 9 pagesOpen →Wireless encryption and authentication mechanisms10 concepts · 11 pagesOpen →Mobile Device Management (MDM) concepts12 concepts · 12 pagesOpen →Mobile device threats and security controls6 concepts · 10 pagesOpen →IoT architecture and security controls8 concepts · 10 pagesOpen →
6Cryptography, PKI, and Data Security210 questions
Cryptographic techniques and algorithms6 concepts · 8 pagesOpen →Public Key Infrastructure (PKI) and digital certificates10 concepts · 9 pagesOpen →Data encryption techniques7 concepts · 9 pagesOpen →Data backup and retention9 concepts · 7 pagesOpen →Data Loss Prevention (DLP) concepts8 concepts · 10 pagesOpen →
7Network Traffic Monitoring165 questions
Not a table of contents
Every line on this map already opens
In front of every objective the practice pages are already there, free and without an account. This is one objective, opened.
Fundamentals of network security and defense9 pagesOpen →
Free in front of it
44 questions on this objective, five to a page. Every range above is a real page, open now, with no account.
Reading the map is not the same as knowing the ground
The curriculum tells you what is on the exam. Proving you know it is a different job — and it is the one the closed-book run does.
Free questions
1441 questions. No account, no card.
The whole bank is open. 5 questions to a page, every answer explained, and a discussion thread on each one.
1441questions
300pages
33objectives
Freealways
Browse by domain
Every objective, and every page range, is a link — so you can pick up exactly where you left off.
1Network Security Fundamentals and Access Control205 questions
2Administrative and Physical Security Controls217 questions
3Technical Security Controls227 questions
4Virtualization and Cloud Computing Security168 questions
5Wireless, Mobile, and IoT Security249 questions
6Cryptography, PKI, and Data Security210 questions
7Network Traffic Monitoring165 questions
What a practice page gives you
1Five to a page
Short enough to finish, long enough to matter.
2Every answer explained
Not only which one is right — why the others are wrong.
3A discussion on each
Ask, answer, and vote. Every question has its own thread.
A question, and the idea behind it
Every question comes from a concept
These are not trivia. Each one is written against a concept in the book, so when you get one wrong there is somewhere to go and find out why.
The visual book
See it once. Carry it into the exam.
The pages shown here come from our AI-900 book — an example of how each concept is written in plain language and, where the idea needs one, drawn as a full page you can take in at a glance.
240concepts
1441free questions
Why a picture, and not another paragraph
Three reasons, and each one is a real finding rather than a slogan.
You can see it againThe whole idea at onceWhere it starts, what happens in the middle, what comes out, and the mistake to avoid.
Multimedia principle · MayerThe look-alikes sit togetherThe pairs the exam tests are drawn side by side, so the difference is seen, not told.
Dual coding · PaivioWhat one page is made of
You are never asked to read a poster here — only to see how one is built. After that, every other page is legible at a glance.
1A numbered strip on top
The idea as a sequence, followed with a finger before a word is read.
2Panels for the parts
What it is, how the machine learns it, when it is the right tool.
3The trap, framed
The distinction the exam tests, given its own box instead of buried in prose.
4One line at the bottom
The sentence to carry into the exam room.
Open book, on purpose
Answer it with the picture beside you
This is the part that teaches. The illustration and the written explanation stay where they are while you work, so a scenario stops being a memory test and becomes something you can simply look at.
It teaches · it does not count
A smartphone uses AI to unlock when the owner looks at the camera. Which AI capability is being used?
AImage classification
BFacial recognition
COptical character recognition
DObject detection
Look at the five steps. Detect finds a face, align straightens it, encode turns it into numbers, search compares it with a stored face, and decide answers one question: is this the same person? Classification would only say “a face”. Detection would only draw a box. Neither decides whose.
Then the page shuts, and it starts counting
The same questions come back with the book closed — that run is the one that counts. After it, your coach picks one thing for tonight, sized to the time you have, and brings pages back before you lose them.
Testing effect · Roediger & Karpicke 2006 · spacing effect · Cepeda et al. 2006
Official resources
Straight from EC-Council
Where the exam is defined, scheduled and scored.
1official link
240concepts mapped
The source
EC-Council’s own pages
We link to them rather than repeat them, so nothing here goes stale behind them.
Checked against the source
Every objective on the official EC-Council outline already has questions here
We build from the official skills outline, not from a summary of it — 33 objectives, 240 concepts written under them, and free questions against every one. When EC-Council changes the outline, this page changes with it.
33objectives on the outline→240concepts written→1441free questions
An official page tells you what will be asked. It cannot tell you what you will get right.
That is the only question worth answering the night before, and no link answers it. You answer it by taking the questions with the book closed, and seeing what comes back.