Lesson Ten Review Questions

Front 1

How are disks, partitions, and volumes different from one
another?

Back 1

Disks are the actual storage hardware; partitions are logical divisions of a disk used to define the storage space; and volumes, contained inside partitions, are used to define how the individual files and folders are saved to the storage.

Front 2

What are the two primary partition schemes for Macformatted
disks? What are their differences?

Back 2

GUID Partition Table is the default partition scheme on Intelbased Mac computers, and Apple Partition Map is the default partition scheme on PowerPC-based Mac computers.

Front 3

What two volume formats are supported for an OS X system
volume?

Back 3

The volume formats supported as system volumes for OS X are Mac OS Extended (Journaled) and Mac OS Extended (Journaled, Encrypted).

Front 4

How does file system journaling work?

Back 4

File system journaling records what file operations are in progress at any given moment. This way, if a power failure or system crash occurs, after the system restarts, it will be able to
quickly verify the integrity of the volume by “replaying” the journal.

Front 5

What are the four erase options available in Disk Utility? How
are they all different?

Back 5

• Fastest, which simply replaces the volume’s directory structure
• A second choice, which provides good security by writing zeros on top of all the previous disk data
• A third choice, which provides even better security by writing three separate passes of information on top of the previous disk data
• Most Secure, which provides the best security by writing seven separate passes of information on top of the previous disk data

Front 6

How does the Secure Empty Trash feature in Finder work?

Back 6

Secure Empty Trash will perform a 7-pass erase on the contents of the Trash folder.

Front 7

How can you ensure that previously deleted items are securely erased?

Back 7

From the Erase tab in Disk Utility, you can choose to securely erase the free space of a disk or volume. This securely erases any previously deleted files on the selected disk or volume.

Front 8

How can you encrypt a disk without losing its contents?

Back 8

From the Finder, you can encrypt a disk without losing its contents by secondary (or Control-) clicking the disk and then choosing Encrypt from the shortcut menu.

Front 9

What four methods can be used to eject a volume or disk from the Finder?

Back 9

• Drag the disk icon to the Trash in the Dock.
• Press and hold the Eject key for a few moments to unmount and eject optical media.
• Select the volume you want to eject and choose Eject from the File menu.
• In the Finder sidebar, click the small Eject button next to the volume you want to unmount and eject.

Front 10

What’s the potential side effect of improperly unmounting or ejecting a disk or volume?

Back 10

Improperly unmounting or ejecting a drive or volume may cause data corruption. The system automatically verifies and repairs an improperly unmounted or ejected volume the next time it becomes available to the Mac.