Lesson 21 Flashcards
What’s protected memory? What’s 64-bit memory addressing?
The system keeps applications from interfering with one another by segregating their memory usage using protected memory. Mac computers with 64-bit-capable processors allow processes to run in 64-bit mode, which allows them to individually access more than 4 GB of memory.
Why would you want to open an application in 32-bit mode?
Using the Finder Info window you can force an application to open in 32-bit mode. This step is necessary for a 64-bit application to support older 32-bit plug-ins or application resources.
How can you identify which applications are installed on your Mac?
You can use the System Information application to easily scan all the appropriate application locations and return a list of installed applications.
Which application is used to examine open applications on OS X?
The Activity Monitor application is used to monitor open processes and applications.
What steps should you use when troubleshooting application issues?
General application troubleshooting steps include restarting the application, trying another known working document, trying another user account, checking log files, deleting cache files, replacing preference files, and replacing application resources.
What three ways can you forcibly quit an application from the graphical interface?
The three ways to forcibly quit an application from the graphical interface are from the Force Quit Application dialog accessed from the Apple menu; from the Dock application shortcut menu accessed by Control-clicking or right-clicking the application’s icon; or from the /Applications/Utilities/ Activity Monitor application.
What does the diagnostic reporting feature do?
The diagnostic reporting feature automatically creates a diagnostic report log any time an application crashes or hangs. The diagnostic report log can be viewed immediately, reported to Apple via the Internet, or viewed later in the / Applications/Utilities/Console application.
Where are application preferences stored?
Application preferences are almost always stored in the user’s Library folder in the ~/Library/Preferences folder. Newer sandboxed applications must always store their preferences in a ~/Library/Containers//Data/Library/ Preferences folder, where “” is the unique bundle identifier for the application.
What file format is often used for preference files? How can you view the content of this type of file?
Most application preferences are property lists, which are XML-formatted files that use the “.plist” filename extension. The content of these files can be viewed using Quick Look, and edited using the Xcode development application found on the Mac App Store.
What assistive technology features are available in OS X? What system preference enables these features?
The OS X assistive technology features include options to assist users who have difficulty seeing, hearing, using the keyboard, or interacting via keyboard, mouse, or trackpad. These features are available from Accessibility preferences.
Where are Dashboard widgets installed when you double- click them? What process or processes are responsible for Dashboard widgets?
When a user double-clicks a Dashboard widget, the system installs the widget to ~/Library/Widgets. The launch process starts the Dashboard process on behalf of the currently logged-in user. All open widgets run inside the Dashboard process.
