Eccouncil 112-51 Exam Dumps

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112-51 Pack
Vendor: Eccouncil
Exam Code: 112-51
Exam Name: Network Defense Essentials Exam
Exam Questions: 75
Last Updated: September 10, 2025
Related Certifications: Network Defense Essentials
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Free Eccouncil 112-51 Exam Actual Questions

Question No. 1

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?

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Correct Answer: B

The DMCA is a US law that aims to protect the rights of digital content creators and owners. It prohibits the unauthorized copying, distribution, modification, or circumvention of digital content, such as software, music, movies, etc. The DMCA also provides exceptions for certain purposes, such as fair use, research, education, or maintenance and repair of systems. In the scenario, Daniel was authorized to make a copy of computer programs while maintaining or repairing the system, which falls under the DMCA exception for system maintenance and repair12. Reference: Network Defense Essentials - EC-Council Learning, Network Defense Essentials (NDE) | Coursera


Question No. 2

Identify the UBA tool that collects user activity details from multiple sources and uses artificial intelligence and machine learning algorithms to perform user behavior analysis to prevent and detect various threats before the fraud is perpetrated.

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Correct Answer: C

Dtex Systems is the UBA tool that collects user activity details from multiple sources and uses artificial intelligence and machine learning algorithms to perform user behavior analysis to prevent and detect various threats before the fraud is perpetrated. Dtex Systems is a user and entity behavior analytics (UEBA) platform that provides visibility, detection, and response capabilities for insider threats, compromised accounts, data loss, and fraud. Dtex Systems collects user activity data from endpoints, servers, cloud applications, and network traffic, and applies advanced analytics and machine learning to establish baselines of normal user behavior, identify anomalies, and assign risk scores. Dtex Systems also provides contextual information, such as user intent, motivation, and sentiment, to help security teams understand and respond to the threats. Dtex Systems can integrate with other security tools, such as SIEM, DLP, or IAM, to enhance the security posture of the organization123. Reference:

Network Defense Essentials Courseware, EC-Council, 2020, pp. 3-35 to 3-36

Dtex Systems - Wikipedia, Wikipedia, March 16, 2021

Dtex Systems - User and Entity Behavior Analytics (UEBA), Dtex Systems, 2020


Question No. 3

Clark, a security professional, was instructed to monitor and continue the backup functions without

interrupting the system or application services. In this process, Clark implemented a backup mechanism that dynamically backups the data even if the system or application resources are being used.

Which of the following types of backup mechanisms has Clark implemented in the above scenario?

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Correct Answer: D

A hot backup is a type of backup mechanism that dynamically backs up the data even if the system or application resources are being used. A hot backup does not require the system or application to be shut down or paused during the backup process, and it allows the users to access the data while the backup is in progress. A hot backup ensures that the backup is always up to date and consistent with the current state of the data, and it minimizes the downtime and disruption of the system or application services. A hot backup is suitable for systems or applications that have high availability and performance requirements, such as databases, web servers, or email servers. A hot backup is the type of backup mechanism that Clark implemented in the above scenario, as he performed a backup that dynamically backs up the data even if the system or application resources are being used. Reference:

Hot Backup - Week 5: Data Security

Hot Backup vs. Cold Backup: What's the Difference?

Network Defense Essentials (NDE) | Coursera - Module 5: Data Security


Question No. 4

Which of the following objects of the container network model (CNM) contains the configuration files of a container's network stack, such as routing table, container's interfaces, and DNS settings?

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Correct Answer: B

The object of the container network model (CNM) that contains the configuration files of a container's network stack, such as routing table, container's interfaces, and DNS settings, is the Sandbox. A Sandbox is a logical entity that encapsulates the network configuration and state of a container. A Sandbox can contain one or more endpoints from different networks, and provides isolation and security for the container's network stack. A Sandbox can be implemented using various technologies, such as Linux network namespaces, FreeBSD jails, or Windows compartments. A Sandbox allows the container to have its own view and control of the network resources, such as interfaces, addresses, routes, and DNS settings123. Reference:

The Container Networking Model | Training, Training, 2020

A Comprehensive Guide To Docker Networking - KnowledgeHut, KnowledgeHut, September 27, 2023

Design - GitHub: Let's build from here, GitHub, 2020


Question No. 5

Peter, a security professional, was hired by an organization and was instructed to secure the application and its content from unauthorized access. In this process, Peter implemented a public-key cryptosystem that uses modular arithmetic and elementary number theory for Internet encryption and user authentication.

Which of the following algorithms was employed by Peter in the above scenario?

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Correct Answer: A

RSA is a public-key cryptosystem that uses modular arithmetic and elementary number theory for Internet encryption and user authentication. RSA stands for Rivest-Shamir-Adleman, the names of the inventors of the algorithm. RSA allows users to generate a pair of keys, one public and one private, that are mathematically related. The public key can be used to encrypt messages or verify digital signatures, while the private key can be used to decrypt messages or create digital signatures. RSA is based on the difficulty of factoring large numbers, which makes it secure and widely used12. Reference: What is Public-Key Cryptosystem in Information Security?, Network Defense Essentials (NDE) | Coursera


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