Lesson 23 Flashcards
What’s a network location? Who can access network locations?
A network location is a saved state of Network preferences that contains all network interface settings. Only administrators can define network locations, but if more than one location exists, all users can switch between the various network locations via the Apple menu.
What interfaces and protocols are supported by default in OS X?
OS X supports the following network interfaces and protocols:
• Ethernet IEEE 802.3 family of hardware network interface standards
• Wireless (Wi-Fi) IEEE 802.11 family of hardware network interface standards
• FireWire IEEE 1394 bridged network interface
• Thunderbolt bridged network interface
• Bluetooth wireless hardware network interface
• USB connectivity via cellular network adapters or iOS devices with cellular network service
• Virtual private network (VPN) virtual network interface via the Point-to-Point Tunneling Protocol (PPTP)
• VPN virtual network interface via the Layer 2 Tunneling Protocol (L2TP) over Internet Protocol Security (IPSec)
• VPN virtual network interface via Cisco IPSec
• Point-to-Point Protocol over Ethernet (PPPoE) virtual
network interface
• 6 to 4 virtual network interface
• Virtual local area network (VLAN) virtual network interface via the IEEE 802.1Q standard
• Link Aggregation virtual network interface via the IEEE 802.3ad standard
• Transmission Control Protocol/Internet Protocol (TCP/IP), also known as the Internet protocol suite
• Dynamic Host Configuration Protocol (DHCP)
• Domain Name Service (DNS) protocol
• Network Basic Input/Output System (NetBIOS) and Windows Internet Naming Service (WINS) protocols
• Authenticated Ethernet via the 802.1X protocol
What functionality does OS X support with the AppleTalk protocol?
AppleTalk works only with OS X v10.5 or earlier.
How does network service order affect network connectivity?
The network service order list is used to determine the primary network service interface if there is more than one active service. All network traffic that isn’t better handled via local connection to an active network service interface is sent to the primary network service interface. So in most cases all WAN traffic, Internet traffic, and DNS resolution is sent through the primary network service interface.
In Network preferences, how can you tell which interface is currently being used for network activities?
In Network preferences, all network service interfaces with a green status indicator are being used for network activities. However, again, all network traffic that isn’t better handled via a local connection is sent to the primary network service interface. The primary network service interface is the topmost active interface in the listing.
What’s the easiest method in OS X to configure VPN settings?
The easiest method to configure VPN settings is to use a configuration profile containing all the relevant VPN setup information.
How is 802.1X configured on OS X systems?
In OS X there are two configuration methods for 802.1X. The first method is automatic configuration via the selection of a Wi-Fi network that requires WPA/WPA2 Enterprise authentication. The second method is “semi-automatic” configuration via an 802.1X configuration profile provided by an administrator.
