VPN Protocols and Encryption Methods

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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?

The IP packet data Signup and view all the answers

At which layer of the OSI model does IPSec operate?

Layer 3 (Network) Signup and view all the answers

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

To add a new IP header for transmission Signup and view all the answers

What type of applications can users access in tunnel mode?

Any applications on the network, including offline programs Signup and view all the answers

Which protocol uses SSL encryption and is the most popular?

OpenVPN Signup and view all the answers

What is a security risk in IPSec connections?

Exchange of pre-shared keys Signup and view all the answers

What is a security risk in some SSL VPNs?

Allowing untrusted, self-signed certificates Signup and view all the answers

What is an advantage of SSL VPNs over IPSec connections?

Public key cryptography is used Signup and view all the answers

What is a characteristic of most native OpenVPN clients?

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

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

To save the original protocol value Signup and view all the answers

What is the main advantage of SSL VPN over IPsec?

It gives users more specific access to applications Signup and view all the answers

What is the primary mode of access for SSL VPNs?

Through a page in the web browser Signup and view all the answers

What is the main security benefit of SSL VPNs?

It restricts access to only what's needed Signup and view all the answers

What is the successor technology to the SSL protocol?

Transport Layer Security (TLS) Signup and view all the answers

What is the primary advantage of IPsec over SSL VPN?

It provides full network access to remote users Signup and view all the answers