One to two hours every day is all it takes when the material respects your time. In 2026, TestkingPDF helps 112-51 candidates pass with ECCouncil Network Defense Essentials (NDE) practice questions instead of piles of review books.
ECCouncil 112-51 Exam Overview:
| Certification Vendor: | EC-Council |
|---|---|
| Exam Name: | EC-Council Network Defense Essentials (NDE) Exam 112-51 |
| Exam Number: | 112-51 |
| Passing Score: | Not officially disclosed |
| Exam Price: | Varies by region and training bundle (not fixed publicly) |
| Available Languages: | English |
| Real Exam Qty: | Not officially disclosed |
| Exam Format: | Multiple choice, Proctored exam |
| Exam Duration: | Not officially disclosed |
| Certificate Validity Period: | 3 years (typical EC-Council certification validity; confirm with official policy) |
| Related Certifications: | EC-Council Cybersecurity Essentials Certified Network Defender (CND) |
| Recommended Training: | Network Defense Essentials (NDE) Official Training |
| Exam Registration: | EC-Council Official Certification Portal |
| Sample Questions: | ![]() |
| Exam Way: | Online proctored exam via EC-Council authorized platform |
| Pre Condition: | No formal prerequisites required (recommended basic networking knowledge) |
| Official Syllabus URL: | https://www.eccouncil.org/programs/network-defense-essentials-nde/ |
ECCouncil 112-51 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Network Defense Operations | - Monitoring and incident response basics - Security policies and best practices |
| Topic 2: Cryptography and Secure Communications | - Secure protocols and VPNs - Encryption fundamentals |
| Topic 3: Threats and Attack Vectors | - Malware and social engineering - Network-based attacks |
| Topic 4: Network Security Controls | - Firewalls and perimeter defense - IDS/IPS systems |
| Topic 5: Network Security Fundamentals | - Security principles and models - Introduction to networking concepts |
ECCouncil 112-51 Exam: FAQ for Future Passers
ECCouncil Network Defense Essentials (NDE) is an official EC-Council certification exam, listed under the code 112-51. Passing it earns the Network Defense Essentials (NDE) certification at the Associate level. It also ties into Certified Network Defender (CND), EC-Council Cybersecurity Essentials. In an era of lifelong learning, this credential is one of the most efficient ways to prove your skills keep pace.
ECCouncil Network Defense Essentials (NDE) gives you Not officially disclosed questions across Not officially disclosed. The efficient approach: one to two hours of daily timed practice in the TestkingPDF engine builds both the knowledge and the pacing, so exam day feels like simply another well-run session.
Passing ECCouncil Network Defense Essentials (NDE) takes Not officially disclosed, and the official registration fee is Varies by region and training bundle (not fixed publicly). Retakes cost the full Varies by region and training bundle (not fixed publicly) again, so treat your TestkingPDF practice scores as the decision-maker: book when the passing line sits below your everyday results, not your best ones.
The ECCouncil Network Defense Essentials (NDE) syllabus is organized into 5 domains, led by Threats and Attack Vectors, Network Security Fundamentals, and Network Defense Operations. The complete breakdown is above on this page; it is the fastest way to learn where your limited preparation hours belong.
No formal prerequisites required (recommended basic networking knowledge)
Vendor policies are revised periodically, so verify the current requirements before registering via the official exam page.
Registration for ECCouncil Network Defense Essentials (NDE) goes through the official channels below.
For planning: the exam is delivered Online proctored exam via EC-Council authorized platform.
EC-Council recommends the following training for ECCouncil Network Defense Essentials (NDE) candidates.
Follow any training with daily practice on the 77 questions in the TestkingPDF 112-51 package; sorted by authorized expert groups, they turn course theory into exam-ready skill.
Yes on both counts. Download the free demo of the ECCouncil Network Defense Essentials (NDE) questions first, and browse the comments written by former customers for a second opinion. After purchase, new versions are sent to you as soon as they release, free for 365 days; after expiry, extending the update service costs 50% of the regular price.
Worry-free means a 100% money-back guarantee with stated conditions. Take the ECCouncil Network Defense Essentials (NDE) exam within 60 days of purchase; if you fail, you may claim a full refund, provided the exam matches your product. Attempts within 3 days of purchase are ineligible, as are downloaded-but-unused products, free materials, and expired orders; the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are processed within 7 days. Alternatively, exchange for two other exam products of equal value, free, keeping the update service on your original purchase.
Delivery is instant: download your files the moment you pay, with an email copy arriving within one minute. If nothing arrives within 2 hours, check spam and contact customer service, online 24/7 with infinite patience. Installation is unlimited across your computers.
ECCouncil Network Defense Essentials (NDE) Sample Questions:
George, a professional hacker, targeted a bank employee and tried to crack his password while he was attempting to log on to the remote server to perform his regular banking operations. In thisprocess, George used sniffing tools to capture the password pairwise master key (PMK) associated with the handshake authentication process. Then, using the PMK, he gained unauthorized access to the server to perform malicious activities.
Identify the encryption technology on which George performed password cracking.
- A. WPA3
- B. WEP
- C. WPA
- D. WPA2
Correct Answer: D 🗳️
Explanation: Only visible for TestkingPDF members. You can sign-up / login (it's free).
Clark, a security team member of an organization, was instructed to secure the premises from unauthorized entries. In this process, Clark implemented security controls that allow employees to enter the office only after scanning their badges or fingerprints.
Which of the following security controls has Clark implemented in the above scenario?
- A. Physical security controls
- B. Technical security controls
- C. System access controls
- D. Administrative security controls
Correct Answer: A 🗳️
Explanation: Only visible for TestkingPDF members. You can sign-up / login (it's free).
Which of the following ISO standards provides guidance to ensure that cloud service providers offer appropriate information security controls to protect the privacy of their customer's clients by securing personally identifiable information entrusted to them?
- A. ISO/IEC 27018
- B. ISO/IEC 27011
- C. ISO/IEC 27001
- D. ISO/IEC 27007
Correct Answer: A 🗳️
Explanation: Only visible for TestkingPDF members. You can sign-up / login (it's free).
Which of the following solutions is a software or a hardware device on a network or host that filters the incoming and outgoing traffic to prevent unauthorized access to private networks?
- A. Firewall
- B. Hub
- C. Router
- D. Switch
Correct Answer: A 🗳️
Explanation: Only visible for TestkingPDF members. You can sign-up / login (it's free).
Which of the following types of network segmentation is an easy approach to divide a network but can be expensive as it occupies more space?
- A. Logical segmentation
- B. VLAN segmentation
- C. Physical segmentation
- D. Network virtualization
Correct Answer: C 🗳️

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