单项选择题 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：   èUsers who are not connected to the corporate network must be able to access the files and the folders in the corporate network.    èUnauthorized users must not have access to the cached files and folders. What should you do？（）

单项选择题 Your network consists of a single Active Directory domain. All servers run Windows Server 2008 R2.   All client computers run Windows 7. Users store all of their files in their Documents folder. Many users store large files.   You plan to implement roaming user profiles for all users by using Group Policy.You need to recommend a solution that minimizes the amount of time it takes users to log on and log off of the computers that use the roaming user profiles. What should you recommend？（）

单项选择题 Your company has two branch offices that connect by using a WAN link. Each office contains a server that runs Windows Server 2008 R2 and that functions as a file server.   Users in each office store data on the local file server. Users have access to data from the other office.   You need to plan a data access solution that meets the following requirements： èFolders that are stored on the file servers must be available to users in both offices. èNetwork bandwidth usage between offices must be minimized.   èUsers must be able to access all files in the event that a WAN link fails. What should you include in your  plan？（）