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19 Cards in this Set

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  • Back
What are the four default top-level folders visible in the Finder?
The four default top-level folders visible in the Finder are: Applications, containing applications all local users have access to
What are six common system resources? What purpose does each resource serve? Where are they located in the file hierarchy?
Six common system resources are: extensions, which attach themselves to the system kernel to provide hardware and peripheral driver support
What are the four system resource domains? What purpose does each domain serve?
The four system resource domains are: User, containing applications and system resources specific to each user account
Why does the Finder hide certain folders at the root of the system volume?
The Finder hides traditional UNIX resources from average users because they don’t need to have access to those items. If users do need access to these UNIX items, they can access them from the Terminal.
What two methods can be used to hide items from the Finder?
The Finder will not show items with periods at the beginning of their filename, or items with the hidden file flag enabled.
What are resource forks and why have they fallen out of favor?
Resource forks are used to make the file system appear less complex. Data forks and resource forks are combined to appear as one single item in the file system. They have fallen out of favor because they are not directly compatible with non-Mac OS volumes, nor are they extensible.
What are some of the common file flags and extended attributes used by Mac OS X?
Common file flags include the locked flag, which locks files from changes, and the hidden flag, which hides the item in the Finder. Common extended attributes used in the Finder are setting an item’s color label, stationary pad option, hide extension option, and Spotlight comments.
What does Mac OS X use bundles or packages for?
Bundles and packages are used to combine complex items into individual folders. Packages have the additional advantage of appearing as a single item in the Finder. This allows software developers to combine resources into a single item and prevents users from messing with those resources.
How does the system identify which application to open when a user double-clicks on a file?
Files are identified either by their file type attributes or their filename extension. Launch Services maintains a database of known applications and which file types they can open. When you double-click on a file in the Finder, Launch Services tries to find an appropriate match. You can override the default application selection in the Finder.
What three common UNIX commands support Mac file system metadata?
Three common UNIX commands that have been updated to support Mac file system metadata are cp, mv, and rm.
What are the differences between zip archives and disk images?
Zip archives are created with the Finder from a specific selection of items. Zip archives are compatible with many operating systems. On the other hand, disk images are created using Disk Utility and allow you to create highly flexible archive volumes that can contain nearly anything.
How does the Spotlight search service use metadata?
The Spotlight search service creates index databases of file system metadata so that it can perform normally time-intensive searches nearly instantly.
Where does Spotlight store its metadata index databases? How about the Spotlight plug-ins?
Spotlight metadata index databases are stored at the root of every volume in a /.Spotlight-V100 folder. However, a FileVault user’s database is stored in his encrypted home folder. Also, the Mail application maintains its own database in each user’s home folder at ~/Library/Mail/Envelope Index. Spotlight plug-ins can be located in any Library in a folder named Spotlight.
What backup destinations does Time Machine support?
Time Machine can back up to any Mac OS X Extended volume, including volumes from disk images stored on an AFP share from a Mac OS X or Mac OS X Server.
How does Time Machine maintain a backup history of the file system?
Time Machine starts with a full copy of the file system
What are some privacy and security concerns with the Spotlight service?
Though Spotlight indexes file and folder permissions, it will allow other users to search the contents of locally attached nonsystem volumes when ownership is ignored on those volumes.
What types of files are omitted from Time Machine backups?
Time Machine always ignores temporary files, Spotlight indexes, items in the Trash, and anything else that can be considered a cache. Time Machine will also ignore any files an application has defined as exempt, or any files you have defined as exempt in the Time Machine preferences.
Why is Time Machine inefficient at backing up large databases?
Time Machine is inefficient at backing up large databases because it must back up the entire database file every time any change, no matter how small, is made to the database.
Why might a previously backed-up item be no longer available in Time Machine?
A previously backed-up item will not be available if your backup volume has become full and Time Machine has had to start deleting older items to make room for newer items.