Key chains are used to store secrets such as resource passwords, digital certificates, and encryption keys. The keychain system can also securely store Safari AutoFill information, Internet Account settings, and secure text notes.
A. What type of items can be found in a keychain?
B. How does file system journaling work?
C. What are the advantages of code signing?
D. What does OS X use bundles or packages for?
In Network preferences, all network service interfaces with a green status indicator are being used for network activities. However, again, all network traffic that isn't better handled via a local connection is sent to the primary network service interface. The primary network service interface is the top most active interface in the listing.
A. How can an OS X system automatically connect to a Wi-Fi network?
B. Which five network file services can you connect to from the Finder's Connect to Server dialog?
C. In Network preferences, how can you tell which interface is currently being used for network activities?
D. How can you verify basic connectivity to another network host?
You can choose to ignore ownership on any non system volume. This will ignore any ownership rules and grant any logged-on user unlimited access to the contents of the volume. It's a potential security risk because it will allow any local user account to have full access to the volume, even if that user didn't originally mount the volume.
A. How does Time Machine maintain a backup history of the file system?
B. What two methods are used to hide items from the Finder?
C. What interface is the default location for managing documents in iCloud?
D. What does it mean when you choose the option to "ignore volume ownership" in the Finder? What are the security ramifications of ignoring volume ownership?
How can you identify the MAC addresses for all the Mac computer's network interfaces?
A. You can identify all the MAC addresses for the Mac computer's network interfaces from the Info pane of Network Utility.
B. The firmware initializes the Mac computer's hardware and locates the booter file on a system volume. The Power-On Self-Test (POST) checks for basic hardware functionality when the Mac powers on.
C. The network service order list is used to determine the primary network service interface if there is more than one active service. All network traffic that isn't better handled via local connection to an active network service interface is sent to the primary network service interface. So in most cases all WAN traffic, Internet traffic, and DNS resolution is sent through the primary network service interface.
D. Time Machine can back up to any Mac OS Extended volume or network shares hosted from Time Capsule or OS X Server.
The Archive option in the Finder creates compressed zip archive files.
A. What type of items can be found in a keychain?
B. What types of files are omitted from Time Machine backups?
C. What type of file is created by the Finder when you select the Archive option?
D. What four methods can be used to restore from a Time Machine backup?
OS X software updates can be downloaded from the Apple Support website using any modern web browser. Updates take the form of installation packages that are installed via the Installer application.
A. How can you prevent a user from installing software updates?
B. What four methods can be used to eject a volume or disk from the Finder?
C. Which applications are used to manually acquire and install OS X software updates?
D. Which items aren't loaded when OS X Safe Boots?
What's target disk mode and how is it engaged?
A. Documents saved to iCloud can be managed from the application that was used to create and save the document. iCloud documents don't appear anywhere in the Finder that a user would normally look.
B. The Disk Utility Verify and Repair feature is used to verify or repair the partition scheme and directory structure of a volume. These elements contain the information used to locate files and folders on the volume.
C. A network location is a saved state of Network preferences that contains all network interface settings. Only administrators can define network locations, but if more than one location exists, all users can switch between the various network locations via the Apple menu.
D. Target disk mode is a Mac-specific hardware feature that, when engaged, will share the Mac computer's internal disks through the FireWire ports. Target disk mode can be engaged from Startup Disk preferences or by holding down the T key as you turn on the Mac.
Disk Utility and System Information can both be used to gather information about storage devices.
A. What OS X application is set as the default for opening archive files?
B. Which keyboard shortcut can be used to temporarily choose another startup disk?
C. Which two built-in OS X applications can be used to gather information about storage devices?
D. Which application is used to examine open applications on OS X?
The master password is used to reset local account passwords.
A. How can you identify duplicate fonts?
B. Where are application preferences stored?
C. What are the advantages of code signing?
D. What does the master password do?
What does CUPS do?
A. PostScript Printer Description (PPD) files are printer driver files that instruct the CUPS system on how to communicate with specific printer models.
B. Standard UNIX file system permissions allow only for permissions to be set for one owner, one group, and all others. ACLs, on the other hand, allow for an essentially unlimited list of permissions entries.
C. Any application that supports Auto Save and the Finder can manage document locking.
D. Common UNIX Printing System (CUPS) manages all printing for OS X, including both local and shared printing.
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