You are preparing for a Zero Touch Installation (ZTI) of Windows 7 using Windows Deployment Services (WDS) and System Center Configuration Manager 2007 R2. Your network includes branch offices that are separated by firewalls.

You need to ensure that the necessary protocol is allowed through the firewalls to support the deployment.

Which protocol should you allow?

A.
FTP

B.
SFTP

C.
SSH

D.
TFTP