Your network contains a Windows Server 2008 R2 server that functions as a file server. All users have laptop
computers that run Windows 7.
The network is not connected to the Internet.
Users save files to a shared folder on the server.
You need to design a data provisioning solution that meets the following requirements:
Users who are not connected to the corporate network must be able to access the files and the folders in
the corporate network.
Unauthorized users must not have access to the cached files and folders.
What should you do?

A.
Implement a certification authority (CA). ConfigureIPsec domain isolation.

B.
Implement a certification authority (CA). Configure Encrypting File System (EFS) for the drive that hosts the
files.

C.
Implement Microsoft SharePoint Foundation 2010. Enable Secure Socket Layer (SSL) encryption.

D.
Configure caching on the shared folder. Configureoffline files to use encryption.

Explanation:
OFFILE AVAILABILITY OF FOLDERS/FILES
The caching feature (Offline Files) of shared folders ensures that users have access to shared files even when
they are working offline without access to the network, and is enabled by
1. Advanced in Sharing tab of the properties of shared folder assessed through Share and Storage
Management snap-in or Windows Explorer
2. Group Policy
3. net share /cache command
To enhance the security of those Offline Files, Encrypting File System (EFS) (and even BitLocker Drive) may be
applied.
http://technet.microsoft.com/en-us/library/cc755136.aspx