Installation and Configuration
Update, Upgrade, and Reinstall macOS Mojave, Set Up and Configure macOS, Use the Command-Line Interface, Use macOS Recovery.
Manage User Accounts, Manage User Home Folders, Manage macOS Security, Manage Password Changes with Keychain Access.
File Systems and Storage
Manage File Systems and Storage, Manage Encryption with FileVault, Manage Permissions and Sharing.
Use Hidden Items, Shortcuts, and File Archives, Manage System Resources, Use Metadata and Spotlight, Manage Time Machine.
Apps and Processes
Install Apps, Manage Documents, Manage and Troubleshoot Apps.
Manage Basic Network Settings, Manage Advanced Network Settings, Troubleshoot Network Issues.
Manage Network Services, Manage Host Sharing and the Personal Firewall.
Troubleshoot Peripherals, Manage Printers and Scanners, Troubleshoot Startup and System Issues.