You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003.
You are directed to back up all files in folder named c:\Data on one of the servers.
You use the Backup utility to perform a normal backup of c:\Data. When the backup is complete, you review the backup log file and discover the following message:
"WARNING: Portions of '\Data\Letter.doc' cannot be read. The backed up data is corrupt or incomplete. This file will not restore correctly"
You need to ensure that all documents in c:\Data can be restored successfully.
What should you do?（）

You are the network administrator for your company. Your network consists of a single Active Directory domain named All network servers run Windows Server 2003.
You successfully install a new server named Server9. Immediately afterward, you perform the first backup of the server. The date is January 25, 2003.
Next, you add a user named Anna to the local Backup Operators group. You direct Anne to perform nightly backups of Server9.
One week later, you try to review the backup logs for Server9. The Backup utility displays the information show in the exhibit
Exhibit:
Backup Reports Report date, time and backup job name:
1/25/2003 4:12 PM - Interactive
You verify that Anne is performing nightly backups.
You need to be able to review the backup logs for the previous week.
What should you do?（）