Lesson 23: Manage Host Sharing and Personal Firewall Flashcards
Which sharing services can macOS provide?
The macOS sharing services include: • DVD or CD sharing • Screen Sharing • File Sharing • Printer Sharing • Scanner Sharing • Remote Login • Remote Management (ARD) • Apple Events • Internet Sharing • Bluetooth Sharing
What is the security risk of enabling client sharing services?
If a client sharing service is compromised, an unauthorized user can control your Mac and execute unwanted applications or processes.
Which application can provide on-demand screen sharing even when the Screen Sharing service isn’t enabled?
In macOS Sierra, what network service(s) does this application-based screen sharing capability rely on?
The Messages application allows for on-demand screen sharing that can be used even when the system screen sharing service isn’t enabled.
In macOS Sierra, Messages screen sharing leverages the iMessage service and requires that users on both Mac computers are signed in to iCloud.
What is AirDrop, and how do you know if a specific Mac supports it?
AirDrop provides a quick and easy method for sharing files locally with other wireless devices. AirDrop creates a secure peer-to-peer network between local devices.
You can verify that a Mac supports AirDrop from the Finder Go menu.
Assuming you have a brand-new Mac with macOS Sierra, what other devices will appear in the AirDrop browser with the default settings?
When you open the AirDrop browser on a late-model Mac computer with macOS Sierra, it will show only other late-model Mac computers with OS X Yosemite 10.10 or later and late-model iOS devices with iOS 7 or later.
If other devices with AirDrop enabled are not appearing in the AirDrop browser, what two settings on a Mac can you change to potentially make more devices appear?
On a late model-Mac computer with macOS Sierra, you’ll find two settings at the bottom of the AirDrop browser that control AirDrop discovery.
The first setting expands AirDrop discovery from only users in your Contacts to everyone within AirDrop range.
The second setting makes AirDrop revert to the previous discovery method, which allows your Mac to discover older Mac computers and Mac computers running previous versions of macOS.
In what primary way does the macOS built-in firewall differ from a traditional network firewall?
With the firewall built into macOS, connections are allowed or denied on a per-application basis.
This is unlike traditional network firewalls, where access rules are based on network service port numbers.
Which optional firewall settings are available?
The optional firewall settings enable you to:
- Control whether built-in software is automatically allowed to receive incoming connections
- Signed software is automatically allowed to receive incoming connections
- Control the list of allowed (or denied) applications; and
- Enable stealth mode (which means your Mac will not respond to any unsolicited connections)
