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 (C)</p> Signup and view all the answers

At which layer of the OSI model does IPSec operate?

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

Which protocol uses SSL encryption and is the most popular?

<p>OpenVPN (A)</p> Signup and view all the answers

What is a security risk in IPSec connections?

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

What is a security risk in some SSL VPNs?

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

What is an advantage of SSL VPNs over IPSec connections?

<p>Public key cryptography is used (B)</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 (B)</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 (D)</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 (D)</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 (B)</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 (D)</p> Signup and view all the answers

What is the successor technology to the SSL protocol?

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

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