VPN Protocols and Encryption Methods
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Questions and Answers

What is the primary function of the Authentication Header (AH) in IPSec?

  • Encryption of transmitted data
  • Authentication, integrity, and nonrepudiation (correct)
  • Encryption of IP packet headers
  • Protection of IP packet headers

    • In IPSec tunnel mode, what is encrypted?

  • The entire original IP packet (correct)
  • The IP packet header only
  • The upper layer protocol only
  • Only the IP packet data

    • What is the most commonly used protocol in IPSec VPN tunnel configuration?

  • AH
  • IPSec
  • TCP/UDP
  • ESP (correct)

    • In IPSec transport mode, what is protected?

    <p>The IP packet data</p> Signup and view all the answers

    At which layer of the OSI model does IPSec operate?

    <p>Layer 3 (Network)</p> Signup and view all the answers

    What is the purpose of the IPSec header in tunnel mode?

    <p>To add a new IP header for transmission</p> Signup and view all the answers

    What type of applications can users access in tunnel mode?

    <p>Any applications on the network, including offline programs</p> Signup and view all the answers

    Which protocol uses SSL encryption and is the most popular?

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

    What is a security risk in IPSec connections?

    <p>Exchange of pre-shared keys</p> Signup and view all the answers

    What is a security risk in some SSL VPNs?

    <p>Allowing untrusted, self-signed certificates</p> Signup and view all the answers

    What is an advantage of SSL VPNs over IPSec connections?

    <p>Public key cryptography is used</p> Signup and view all the answers

    What is a characteristic of most native OpenVPN clients?

    <p>They verify clients and don’t allow self-signed certificates</p> Signup and view all the answers

    What is the purpose of the IPsec trailer in the IP headers?

    <p>To save the original protocol value</p> Signup and view all the answers

    What is the main advantage of SSL VPN over IPsec?

    <p>It gives users more specific access to applications</p> Signup and view all the answers

    What is the primary mode of access for SSL VPNs?

    <p>Through a page in the web browser</p> Signup and view all the answers

    What is the main security benefit of SSL VPNs?

    <p>It restricts access to only what's needed</p> Signup and view all the answers

    What is the successor technology to the SSL protocol?

    <p>Transport Layer Security (TLS)</p> Signup and view all the answers

    What is the primary advantage of IPsec over SSL VPN?

    <p>It provides full network access to remote users</p> Signup and view all the answers

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