another tough one

[CISSP_Candidate]

Because Secure Shell (SSH-2) supports authentication, compression, confidentiality, and integrity, SSH is used frequently for which of the following?
X Session Forwarding
VPN Tunnels
Encrypted File Transfer
Trusted Symmetric Key Distribution

Why not VPN-Tunnel, correct answer i Encrypted File Trasnfer@@

[Jescoi]

SSH and VPN are 2 different things,

VPN serves as a wrapper, a layer 2 or layer 3 service to wrap around your packet so while you are connected via VPN, you are virtually part of the remote network. Hence you have a virtual presence on the network you connect to. (your host is even assigned an IP address! Isn't that just cool?)

SSH, by name it is Secure Shell, it is only a shell service from the host machine, or in other words, a terminal access to the host machine you are connected to. It is an application layer service. While using SSH, your host machine has no presence on the remote network, you are still within your host network, you are only operating the remote host through a command prompt, that's all.

so this rules the VPN tunnel out, SSH is not a VPN tunnel, it is only a secure way of connecting to the remote host while VPN is a secure way to connect to the remote network.

The other 2 answers are just distractors.

Hope this clarifies the difference between SSH and VPN