5. Applications and Processes: Lesson Nineteen Flashcards
What’s protected memory?
What’s 64-bit memory addressing?
The system keeps apps 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 4GB of memory.
Why would you want to open an app in 32-bit mode?
Using the Finder Info window, you can force an app to open in 32-bit mode. This step is necessary for a 64-bit app to support older 32-bit plug-ins or app resources.
App extensions in OS X El Capitan can add which four capability types?
In OS X, app extensions allow features from an app to extend into the Finder, the Sharing menu, the Action menu, and the Today view in Notification Center.
How do you install new app extensions? After they’re installed, how do you manage app extension visibility?
App extensions are installed automatically because they’re bundled in the app that’s providing the extension.
You can enable or disable installed app extensions from the Extensions preferences.
How can you identify which apps are installed on your Mac?
You can use the System Information app to scan the appropriate app locations and return a list of installed apps.
In OS X, what app do you use to examine open apps?
Use the Activity Monitor app to monitor open processes and apps.
Which steps should you take when you troubleshoot app issues?
General app troubleshooting steps include: • Restarting the app • Trying another known working document • Trying another user account • Checking log files • Deleting cache files • Replacing preference files • Replacing app resources
Which three ways can you forcibly quit an app from the graphical interface?
The three ways to forcibly quit an app from the graphical interface are:
- From the Force Quit Application dialog accessed from the Apple menu
- From the Dock app shortcut menu accessed by Control-clicking or right-clicking the app icon
- From the /Applications/Utilities/Activity Monitor app
What does the diagnostic reporting feature do?
The diagnostic reporting feature automatically creates a diagnostic report log any time an app crashes or hangs.
You can view the diagnostic report immediately. It’s reported to Apple via the Internet.
You can also view it later in the /Applications/Utilities/Console app.
Where are app preferences stored?
Application preferences are almost always stored in a user’s Library folder in the ~/Library/Preferences folder.
Newer sandboxed apps must always store their preferences in a ~/Library/Containers/{Bundle ID}/Data/Library/Preferences folder, where “{Bundle ID}” is the unique bundle identifier for the app.
Which file format is often used for preference files? How can you view the content of this file type?
Most app preferences are property lists, which are XML files that have the “.plist” filename extension.
You can view the content of these files using Quick Look, and edit them using the Xcode development app which you can get from the App Store.
