You have a netbook computer that runs Windows 7. The computer has a single 30 GB partition that has 10 GB of free space.

You need to create a system image of the computer by using Windows Backup.

You must achieve this goal by using the minimum amount of time.

What should you do first?

A.
Attach an external hard disk.

B.
Attach an external DVD burner.

C.
Convert the local hard disk to a GPT disk.

D.
Create and attach a virtual hard drive (VHD).

Explanation:
Scheduling Backups with the Backup And Restore Console
Windows 7 Backup uses shadow copies to take a snapshot of your files, allowing the backup to completely back up files even if they are open. Backups are configured and scheduled by using the Backup And Restore console under System And Security in Control Panel. You can select the following types of backup destination:
An external hard driveExternal hard drives are more expensive to purchase than internal hard drives, although you need to balance this against the cost of fitting the internal drive. They can be removed and stored in a secure location. However, they are typically slower than internal hard drives and tend to be less reliable, mainly because they are by default formatted using FAT rather than NTFS. You cannot use an external hard drive for a System Image backup unless you convert its filing system to NTFS. Because it is easily removable, it is more likely that an external hard drive will be missing when a scheduled backup is required.