Lesson 13 - Manage System Resources

Question 1

What are the four default top-level folders visible in the Finder?

Answer 1

These are the four default top-level folders visible in the Finder:
• The Applications folder—Apps that local users have access to
• The Library folder—System resources that local users have access to
• The System folder—System resources
• The Users folder—Local user home folders

Question 2

What are six common system resources? What purpose does each resource serve?

Answer 2

These are the six common system resources and the purposes they serve:
• Extensions—Attach themselves to the system kernel to provide hardware and peripheral driver support
• Frameworks—Shared code libraries that provide additional software resources for apps and system processes
• Fonts
• Preference files—App and system configuration information
• LaunchAgents and LaunchDaemons—Used by launchd to provide services that automatically start when needed at system startup or at user login
• Logs—Text files that contain error and progress entries from nearly any app or system service

Question 3

What are the four system resource domains? What purpose does each domain serve?

Answer 3

These are the four system resource domains and the purpose they serve:
• User, which contains apps and system resources specific to each user account
• Local, which contains apps and system resources available to users on a local Mac
• Network, which is optional and contains apps and system resources available to any Mac that has an automated network share
• System, which contains apps and system resources that provide basic system functionality

Question 4

What purpose does the ~/Library/Containers folder serve? What items are in this folder?

Answer 4

The ~/Library/Containers folder contains resources for sandboxed apps. macOS Sierra creates and maintains a separate container folder for each sandboxed app that a user can open. A sandboxed app is more secure because it can access only items inside its container. Only items intended for sharing are in a group containers folder.

Question 5

What happens when a user double-clicks a font file?

Answer 5

When a user double-clicks a font file the font file automatically opens a preview of the font in the Font Book app. From here, the user can click the Install Font button to copy the font into ~/Library/Fonts.

Question 6

How can you identify duplicate fonts?

Answer 6

The Font Book app shows a small dot next to the name of any font that has duplicate resources.

Question 7

How does System Integrity Protection (SIP) help ensure that macOS Sierra system resources remain secure?

Answer 7

SIP prevents users and processes with administrator or root access from modifying core macOS Sierra items. Protected items include the /System, /bin, /sbin, and /usr folders along with core macOS Sierra apps.