EC-Council CEH 312-50v12 Exam Preparation
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EC-Council CEH 312-50v12 Exam Preparation

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Questions and Answers

At what layer of the OSI model does the encryption and decryption of the message take place?

  • Session
  • Transport
  • Application
  • Presentation (correct)
  • What is a possible source of the problem if a wireless client can see the network but cannot connect?

  • The client cannot see the SSID of the wireless network
  • The wireless client is not configured to use DHCP
  • Client is configured for the wrong channel
  • The WAP does not recognize the client’s MAC address (correct)
  • What testing method was used when an attacker sends a malicious email disguised as coming from the boss?

  • Piggybacking
  • Social engineering (correct)
  • Phishing
  • Malware distribution
  • At what layer of the OSI model does the encryption and decryption of the message take place?

    <p>Presentation</p> Signup and view all the answers

    What is a possible source of the problem if a new wireless client cannot connect to an 802.11 network despite being able to see it?

    <p>The WAP does not recognize the client’s MAC address</p> Signup and view all the answers

    What testing method did you use if you sent a deceptive email to a receptionist posing as her boss?

    <p>Social engineering</p> Signup and view all the answers

    What is the primary purpose of ethical hacking?

    <p>To improve security by identifying vulnerabilities</p> Signup and view all the answers

    Study Notes

    OSI Model and Encryption

    • Encryption and decryption of messages occur primarily at the Presentation Layer of the OSI model, which is Layer 6.
    • This layer functions as a data translator between the network and the application layer, handling formatting and delivery of information.
    • Alternatives for encryption occur at the application, session, transport, or network layers, each with unique benefits and drawbacks.

    Wireless Network Problems

    • A wireless client can detect a network but fail to connect if the Wireless Access Point (WAP) does not recognize its MAC address due to MAC filtering.
    • MAC filtering is a security measure that restricts access based on predefined 48-bit MAC addresses, enhancing network security by allowing only approved devices.
    • Failure to connect could also result from incorrect configuration options like channel mismatches or walled-off DHCP settings but recognizing the MAC address is a critical factor.

    Penetration Testing and Social Engineering

    • Information gathering during a penetration test can lead to exploiting employees through social engineering, a tactic that manipulates individuals into revealing information or performing actions.
    • Example scenario involved impersonating a boss via email to trick a receptionist into sharing sensitive PDFs, which were then modified to include malware links.
    • Successful execution of such tactics can compromise network security, allowing unauthorized access to sensitive areas of the company network.

    OSI Model and Encryption

    • Encryption and decryption of messages occur primarily at the Presentation Layer of the OSI model, which is Layer 6.
    • This layer functions as a data translator between the network and the application layer, handling formatting and delivery of information.
    • Alternatives for encryption occur at the application, session, transport, or network layers, each with unique benefits and drawbacks.

    Wireless Network Problems

    • A wireless client can detect a network but fail to connect if the Wireless Access Point (WAP) does not recognize its MAC address due to MAC filtering.
    • MAC filtering is a security measure that restricts access based on predefined 48-bit MAC addresses, enhancing network security by allowing only approved devices.
    • Failure to connect could also result from incorrect configuration options like channel mismatches or walled-off DHCP settings but recognizing the MAC address is a critical factor.

    Penetration Testing and Social Engineering

    • Information gathering during a penetration test can lead to exploiting employees through social engineering, a tactic that manipulates individuals into revealing information or performing actions.
    • Example scenario involved impersonating a boss via email to trick a receptionist into sharing sensitive PDFs, which were then modified to include malware links.
    • Successful execution of such tactics can compromise network security, allowing unauthorized access to sensitive areas of the company network.

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    Description

    Prepare for the EC-Council Certified Ethical Hacker (CEH) 312-50v12 exam with this comprehensive set of questions and answers. This quiz covers essential concepts related to email security and Public Key Infrastructure (PKI), ensuring you are well-equipped for the exam. Test your knowledge and understanding of ethical hacking principles.

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