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Eccouncil 112-51 Exam Questions
- Topic 1: Network Security Fundamentals: This component assesses an IT professional's knowledge of the principles behind network security, as well as the dangers and weaknesses connected to networks. This section aims to provide network engineers and security experts with an understanding of the various network security protocols, their purposes, and the ways in which they contribute to the overall security of the network.
- Topic 2: Identification, Authentication, and Authorization: This part addresses the basic concepts, jargon, and models associated with identifying, authenticating, and authorizing users and systems in a network environment. It is intended for security administrators and access control managers.
- Topic 3: Identity and Access Management (IAM) Concepts: An overview of IAM concepts, components, and their function in network resource security is given in this section for security architects and IAM administrators.
- Topic 4: Administrative Controls for Network Security: This section gives an overview of IAM ideas, components, and its function in network resource security for security architects and IAM administrators.
- Topic 5: Administrative Controls for Network Security: This section addresses the creation and application of security policies, standards, processes, and recommendations for compliance officers and security policy makers to safeguard network assets. It also entails being aware of the legal and regulatory frameworks around network security.
- Topic 6: Physical Controls for Network Security: This section highlights the significance of physical security measures for safeguarding network infrastructure and data, especially for physical security workers and building managers. It addresses several physical security measures and how to apply them.
- Topic 7: Technical Controls for Network Security: This section is intended for network engineers and security architects and focuses on technical safeguards for network systems and data.
Free Eccouncil 112-51 Exam Actual Questions
Note: Premium Questions for 112-51 were last updated On Apr. 07, 2026 (see below)
Below is the list of encryption modes used in a wireless network.
1.WPA2 Enterprise with RADIUS
2.WPA3
3.WPA2 PSK
4.WPA2 Enterprise
Identify the correct order of wireless encryption modes in terms of security from high to low.
Explore
The correct order of wireless encryption modes in terms of security from high to low is 2 -> 1 -> 4 -> 3. This is based on the following comparison of the wireless encryption modes:
WPA2 Enterprise with RADIUS: WPA2 Enterprise with RADIUS is a wireless encryption mode that combines the security features of WPA2 Enterprise and the authentication features of RADIUS. WPA2 Enterprise is a mode of WPA2 that uses the AES encryption protocol and provides stronger security than WPA2 Personal, which uses the PSK method. WPA2 Enterprise uses the 802.1X standard to implement Extensible Authentication Protocol (EAP) methods, such as EAP-TLS, EAP-TTLS, or PEAP, to authenticate users and devices before granting access to the network. RADIUS is a protocol that allows a central server to manage authentication, authorization, and accounting for network access. RADIUS can integrate with WPA2 Enterprise to provide centralized and scalable authentication for large and complex networks, such as corporate or campus networks .
WPA2 Enterprise: WPA2 Enterprise is a wireless encryption mode that uses the AES encryption protocol and provides stronger security than WPA2 Personal, which uses the PSK method. WPA2 Enterprise uses the 802.1X standard to implement Extensible Authentication Protocol (EAP) methods, such as EAP-TLS, EAP-TTLS, or PEAP, to authenticate users and devices before granting access to the network. WPA2 Enterprise is suitable for business or public networks that require individual and secure authentication for each user or device .
WPA2 PSK: WPA2 PSK is a wireless encryption mode that uses the AES encryption protocol and provides better security than WEP or WPA, which use the TKIP encryption protocol. WPA2 PSK uses the Pre-Shared Key (PSK) method, which means that all users and devices share the same password or passphrase to join the network. WPA2 PSK is easy to set up and use, but it has some security drawbacks, such as being vulnerable to brute-force and dictionary attacks, or having the password compromised by a rogue user or device. WPA2 PSK is suitable for home or small networks that do not require individual authentication or advanced security features .
WiFi Security: WEP, WPA, WPA2, WPA3 And Their Differences - NetSpot, NetSpot, February 8, 2024
[Types of Wireless Security Encryption - GeeksforGeeks], GeeksforGeeks, 2020
[Wireless Security Protocols: WEP, WPA, and WPA2 - Lifewire], Lifewire, February 17, 2021
[WPA vs. WPA2 vs. WPA3: Wi-Fi Security Explained - MakeUseOf], MakeUseOf, January 13, 2021
Steve was sharing his confidential file with John via an email that was digitally signed and encrypted. The digital signature was made using the "Diffie-Hellman (X9.42) with DSS" algorithm, and the email was encrypted using triple DES.
Which of the following protocols employs the above features to encrypt an email message?
S/MIME (Secure/Multipurpose Internet Mail Extensions) is a protocol that provides security services for email messages, such as encryption, digital signature, authentication, and integrity. S/MIME is based on the MIME standard, which defines the format and structure of email messages. S/MIME uses public-key cryptography to encrypt and decrypt the message content and to sign and verify the message sender. S/MIME supports various algorithms for encryption and digital signature, such as Diffie-Hellman, DSS, RSA, and triple DES. S/MIME is widely used for secure email communication in various applications and platforms, such as Outlook, Gmail, and Thunderbird. S/MIME is the protocol that employs the features mentioned in the question, namely Diffie-Hellman (X9.42) with DSS for digital signature and triple DES for encryption. Reference:
S/MIME - Week 7: Email Security
S/MIME Version 3.2 Message Specification
Below is the list of encryption modes used in a wireless network.
1.WPA2 Enterprise with RADIUS
2.WPA3
3.WPA2 PSK
4.WPA2 Enterprise
Identify the correct order of wireless encryption modes in terms of security from high to low.
Explore
The correct order of wireless encryption modes in terms of security from high to low is 2 -> 1 -> 4 -> 3. This is based on the following comparison of the wireless encryption modes:
WPA2 Enterprise with RADIUS: WPA2 Enterprise with RADIUS is a wireless encryption mode that combines the security features of WPA2 Enterprise and the authentication features of RADIUS. WPA2 Enterprise is a mode of WPA2 that uses the AES encryption protocol and provides stronger security than WPA2 Personal, which uses the PSK method. WPA2 Enterprise uses the 802.1X standard to implement Extensible Authentication Protocol (EAP) methods, such as EAP-TLS, EAP-TTLS, or PEAP, to authenticate users and devices before granting access to the network. RADIUS is a protocol that allows a central server to manage authentication, authorization, and accounting for network access. RADIUS can integrate with WPA2 Enterprise to provide centralized and scalable authentication for large and complex networks, such as corporate or campus networks .
WPA2 Enterprise: WPA2 Enterprise is a wireless encryption mode that uses the AES encryption protocol and provides stronger security than WPA2 Personal, which uses the PSK method. WPA2 Enterprise uses the 802.1X standard to implement Extensible Authentication Protocol (EAP) methods, such as EAP-TLS, EAP-TTLS, or PEAP, to authenticate users and devices before granting access to the network. WPA2 Enterprise is suitable for business or public networks that require individual and secure authentication for each user or device .
WPA2 PSK: WPA2 PSK is a wireless encryption mode that uses the AES encryption protocol and provides better security than WEP or WPA, which use the TKIP encryption protocol. WPA2 PSK uses the Pre-Shared Key (PSK) method, which means that all users and devices share the same password or passphrase to join the network. WPA2 PSK is easy to set up and use, but it has some security drawbacks, such as being vulnerable to brute-force and dictionary attacks, or having the password compromised by a rogue user or device. WPA2 PSK is suitable for home or small networks that do not require individual authentication or advanced security features .
WiFi Security: WEP, WPA, WPA2, WPA3 And Their Differences - NetSpot, NetSpot, February 8, 2024
[Types of Wireless Security Encryption - GeeksforGeeks], GeeksforGeeks, 2020
[Wireless Security Protocols: WEP, WPA, and WPA2 - Lifewire], Lifewire, February 17, 2021
[WPA vs. WPA2 vs. WPA3: Wi-Fi Security Explained - MakeUseOf], MakeUseOf, January 13, 2021
Kelly, a cloud administrator at TechSol Inc., was instructed to select a cloud deployment model to secure the corporate data and retain full control over the data.
Which of the following cloud deployment models helps Kelly in the above scenario?
A private cloud is a cloud deployment model that is exclusively used by a single organization and is hosted either on-premises or off-premises by a third-party provider. A private cloud offers the highest level of security and control over the data and resources, as the organization can customize the cloud infrastructure and services according to its needs and policies. A private cloud also ensures better performance and availability, as the organization does not share the cloud resources with other users. A private cloud is suitable for organizations that have sensitive or confidential data, strict compliance requirements, or high demand for scalability and flexibility. A private cloud can help Kelly secure the corporate data and retain full control over the data in the above scenario. Reference:
Private Cloud - Week 6: Virtualization and Cloud Computing
Private Cloud vs Public Cloud vs Hybrid Cloud
Private Cloud Security: Challenges and Best Practices
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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