Flashcards in Support Essentials 10.9 Deck (192)
What’s the relationship between a network service and a network port?
Network services are established using a common network protocol. The protocol specifies which TCP or UDP port number is used for communications.
What’s the primary interface for configuring network service applications?
Internet Accounts preference is the primary interface in OS X for configuring built-in network applications.
Which five network file services can you connect to from the Finder’s Connect to Server dialog?
From the “Connect to Server” dialog in the Finder, you can connect to:
• Apple File Protocol (AFP)
• Server Message Blocks/Common Internet File System (SMB/ CIFS)
• Network File System (NFS)
• Web-based Distributed Authoring and Versioning (WebDAV)
• File Transfer Protocol (FTP) network file services
How are items inside the Finder’s Network folder populated?
The Finder populates the Network folder using information provided by the dynamic network services discovery protocols. Computers providing services appear as resources inside the Network folder, and service discovery zones or workgroups appear as folders. Any currently connected servers also appear in the Network folder.
Which two methods can be used to automatically connect a network share?
To automatically connect a file share when the user logs in to the system, drag the share from the Finder to the user’s login items in Users & Groups preferences. Or you can drag the share to the right side of the user’s Dock, and it will automatically connect when the user clicks the share’s icon in the Dock.
What are three common troubleshooting techniques for issues involving failure to connect to network services?
Review Network preferences, review the Network Utility statistics, and attempt to connect to different network services.
How can you verify that a specific network service is available from a service provider?
To verify a specific service is available from a service provider, first use the Network Utility Ping tab to verify basic connectivity. Then use the Network Utility Port Scan tab to verify the specific service port(s) are open. You should always limit the port scan to the specific ports required for the network service you’re testing.
What are some known issues that arise when connecting to network file services?
Files with metadata may cause problems for NFS or WebDAV network file systems. Also, avoid AFP 2 services provided by Windows file servers.
How does OS X use dynamic network service discovery protocols to access network services?
Devices providing a network service advertise their availability via a dynamic network service discovery protocol. Clients looking for services request and receive this information to provide the user with a list of available network service choices.
Which two dynamic network service discovery protocols are supported by OS X?
OS X supports Bonjour and Server Message Block (SMB), including support for legacy Network Basic Input/Output and Windows Internet Naming Service (NetBIOS and WINS) dynamic network service discovery protocols.
Which sharing services can OS X provide?
The OS X sharing services include DVD or CD sharing, Screen Sharing, File Sharing, Printer Sharing, Scanner Sharing, Remote Login, Remote Management (ARD), Apple Events, Internet Sharing, and Bluetooth Sharing.
What’s 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?
The Messages application allows for on-demand screen sharing that can be used even when the system screen sharing service isn’t enabled.
What’s AirDrop, and how do you know if a specific Mac supports it?
AirDrop provides a quick and easy method to share files locally via Wi-Fi. AirDrop creates a secure peer-to-peer network between local devices. You can verify that a Mac supports AirDrop from the Finder Go menu.
How does the OS X built-in firewall work?
The OS X built-in firewall inspects each incoming network connection to determine if it’s allowed. Connections are allowed or denied on a per-application basis.
Which optional firewall settings are available?
The optional firewall settings let you control whether signed applications are automatically allowed through the firewall, control the list of allowed (or denied) applications, and enable stealth mode (which means your Mac won’t respond to any unsolicited connections).
What are the four primary peripheral bus technologies supported by Mac computers running OS X?
The four primary peripheral bus technologies supported by OS X are:
• Universal Serial Bus (USB) • FireWire
• Bluetooth wireless
Which action must take place in order for a Mac to communicate with a Bluetooth peripheral? Where can this be configured?
Bluetooth devices must be paired to each other for communication to occur. Bluetooth preferences in the System Preference application is responsible for pairing your Mac with Bluetooth peripherals. You can quickly open Bluetooth preferences from the Bluetooth status menu.
What’s a device driver? Which three primary types of device drivers are there?
A device driver is software specially designed to facilitate the communication between OS X and a peripheral. Device drivers can be kernel extensions, framework plug-ins, or standalone applications.
How does OS X support third-party devices without needing third-party device drivers?
OS X uses built-in generic drivers based on each device class. For example, there are generic drivers for scanners and printers that can be used instead of official third-party drivers.
What can you infer about a connected peripheral if it doesn’t appear in the System Information application?
If a connected peripheral doesn’t appear in System Information, the issue is likely to be hardware related. Troubleshoot accordingly.
What does CUPS do?
Common UNIX Printing System (CUPS) manages all printing for OS X, including both local and shared printing.
What are PPD files responsible for?
PostScript Printer Description (PPD) files are printer driver files that instruct the CUPS system on how to communicate with specific printer models.
What’s the best source for acquiring printer drivers for OS X?
The Apple print drivers are the best source for configuring OS X printers. One method is to let the software update system automatically download and install the appropriate printer drivers. Or you can manually download and install printer drivers from the Apple support website.
Under what circumstances can a standard (nonadministrative) user configure a printer?
Assuming the default settings for OS X, a standard user can only configure directly attached or local network printers from the Print dialog. Also, the appropriate drivers must be installed before the standard user configuring the printer.
How do you share printers with other users?
You can enable printer sharing from Print & Scan or Sharing preferences. Note that Windows clients may need additional drivers to access the Mac computer’s shared printers via the IPP protocol.
How can you select a new printer driver for a configured printer?
It depends on the printer. From Printing & Scanning preferences, sometimes you can simply select a new printer driver from the Options & Supplies dialog. In many cases though, to select a new printer driver for a configured printer you must delete and then re-add the printer.
If it appears that all configured printers are having problems, what’s a potential quick fix?
If all printers appear to be having problems, a quick fix is to reset the entire printing system by using secondary (or Control-) click in the printer list and then choosing “Reset printing system.”
What are the primary system initialization stages in OS X? What are the visual and audible cues of these items?
Each primary stage of system initialization can be indicated by the following: firmware, startup chime or bright flash of the power-on light, followed by a light gray screen on the primary display; booter, a dark gray Apple logo on the primary display; kernel, a small dark gray spinning gear or spinning earth icon below the Apple logo; and system launchd, a white screen on all displays followed by the login screen.