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ECCouncil 112-51 Practice Q&A's

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Choosing materials for the 112-51 exam does not have to be guesswork. Exam4Docs lets you taste before you buy: the free demo shows real questions from the 77-strong ECCouncil Network Defense Essentials (NDE) bank, the PDF prints for paper review, and the software version simulates the real test — three ways to check the fit.

ECCouncil 112-51 Exam Overview:

Certification Vendor:EC-Council
Exam Name:Network Defense Essentials (NDE) Exam
Exam Number:112-51
Available Languages:English
Real Exam Qty:75
Certificate Validity Period:3 Years
Exam Price:$299 USD
Exam Format:Multiple Choice
Related Certifications:Network Defense Essentials (NDE)
Certified Network Defender (CND)
Passing Score:70%
Exam Duration:120 minutes
Sample Questions: DOWNLOAD DEMO
Exam Way:Online Proctored Exam
Pre Condition:No prerequisites or prior cybersecurity experience required.
Official Syllabus URL:https://www.eccouncil.org/train-certify/network-defense-essentials-nde/

ECCouncil 112-51 Exam Syllabus Topics:

SectionObjectives
Identification, Authentication and Access Control- Identity Management
  • 1. Authorization Concepts
  • 2. Authentication Methods
  • 3. Multi-Factor Authentication
  • 4. Access Control Models
Network Monitoring and Defense- Monitoring Techniques
  • 1. Intrusion Prevention Systems
  • 2. Log Management
  • 3. Traffic Analysis
  • 4. Intrusion Detection Systems
Incident Response and Business Continuity- Response Procedures
  • 1. Incident Handling Process
  • 2. Recovery Planning
  • 3. Disaster Recovery Concepts
  • 4. Business Continuity Basics
Network Infrastructure and Communication- Network Components
  • 1. OSI Model
  • 2. TCP/IP Protocol Suite
  • 3. Network Topologies
  • 4. Network Devices
Network Security Technologies- Defense Mechanisms
  • 1. Wireless Network Security
  • 2. Firewalls
  • 3. Secure Protocols
  • 4. Virtual Private Networks (VPNs)
Administrative, Physical and Technical Controls- Security Controls
  • 1. Physical Security Controls
  • 2. Technical Controls
  • 3. Security Policies and Procedures
  • 4. Administrative Controls
Network Threats and Attacks- Cyber Threats
  • 1. DoS and DDoS Attacks
  • 2. Social Engineering
  • 3. Malware
  • 4. Phishing
Introduction to Network Defense and Security- Network Security Fundamentals
  • 1. CIA Triad
  • 2. Security Principles
  • 3. Threat Landscape

The ECCouncil Network Defense Essentials (NDE) Exam: Questions Candidates Ask

No prerequisites or prior cybersecurity experience required.

The 112-51 exam contains 75 questions with 120 minutes minutes on the clock. That combination rewards candidates who have rehearsed under realistic conditions — which is exactly what the software simulation version of the Exam4Docs materials is for.

The official outline divides the 112-51 exam into weighted domains, including:

  • Network Monitoring and Defense ()
  • Introduction to Network Defense and Security ()
  • Network Threats and Attacks ()

The ECCouncil Network Defense Essentials (NDE) question bank at Exam4Docs is organized around these same objectives, and its clear layout makes the heavily weighted points easy to spot and revisit.

The passing score is 70% and the exam fee is $299 USD. A practical approach: keep running timed practice sets until your results sit comfortably above the passing line, then book your seat.

Because knowing the content and knowing the exam are different skills. The software version of the ECCouncil Network Defense Essentials (NDE) materials simulates the real 112-51 exam environment, so the interface, timing, and question flow are familiar before you sit the real thing. It is a small rehearsal with an outsized effect — candidates who have experienced the simulation handle exam-day details calmly instead of burning time on surprises.

The 112-51 exam is the official test for the ECCouncil Network Defense Essentials (NDE) certification from ECCouncil, measuring how well you can apply the published exam objectives in realistic scenarios. The credential validates your skills against an industry-recognized standard — and because the exam has its own format and rhythm, materials that combine organized content with realistic simulation prepare you more completely than reading alone.

Three things. First, it starts with a free demo containing plenty of sample questions, so you can taste the 112-51 exam content before deciding. Second, the PDF prints cleanly, turning your screen materials into paper you can annotate — notes in the margins keep your memory of key points fresh every time you pick the pages back up. Third, it travels anywhere: no account login, no compatibility worries, just 77 practice questions for the ECCouncil Network Defense Essentials (NDE) exam ready whenever you are.

ECCouncil Network Defense Essentials (NDE) Sample Questions:

Question #1

Which of the following IDS components analyzes the traffic and reports if any suspicious activity is detected?

  • A. Network sensor
  • B. Database of attack signatures
  • C. Command console
  • D. Response system
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #2

Below are various authentication techniques.
1.Retina scanner
2.One-time password
3.DNA
4.Voice recognition
Identify the techniques that fall under biometric authentication.

  • A. 2, 3, and 4
  • B. 1, 2, and 3
  • C. 1, 3, and 4
  • D. 1, 2, and 4
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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Question #3

Which of the following protocols uses TLS/SSL to ensure secure transmission of data over the Internet?

  • A. HTTPS
  • B. FTP
  • C. SCTP
  • D. HTTP
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #4

Daniel, a networking specialist, identifies a glitch in a networking tool and fixes it on a priority using a system.
Daniel was authorized to make a copy of computers programs while maintaining or repairing the system.
Which of the following acts was demonstrated in the above scenario?

  • A. The Digital Millennium Copyright Act (DMCA)
  • B. Gramm-Leach-Bliley Act (GLBA)
  • C. Data Protection Act 2018 (DPA)
  • D. Sarbanes-Oxley Act (SOX)
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #5

Which of the following techniques is referred to as a messaging feature that originates from a server and enables the delivery of data or a message from an application to a mobile device without any explicit request from the user?

  • A. PIN feature
  • B. Push notification
  • C. Geofencing
  • D. Containerization
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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