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APPENDIX D: Glossary
• 802.11b - The 802.11b standard specifies a wireless networking at 11 Mbps using direct-sequence spread-
spectrum (DSSS) technology and operating in the unlicensed radio spectrum at 2.4GHz, and WEP encryption for
security. 802.11b networks are also referred to as Wi-Fi networks.
• 802.11g - specification for wireless networking at 54 Mbps using direct-sequence spread-spectrum (DSSS)
technology, using OFDM modulation and operating in the unlicensed radio spectrum at 2.4GHz, and backward
compatibility with IEEE 802.11b devices, and WEP encryption for security.
• DDNS (Dynamic Domain Name System) - The capability of assigning a fixed host and domain name to a dynamic
Internet IP Address.
• DHCP (Dynamic Host Configuration Protocol) - A protocol that automatically configure the TCP/IP parameters for
the all the PC(s) that are connected to a DHCP server.
• DMZ (Demilitarized Zone) - A Demilitarized Zone allows one local host to be exposed to the Internet for a special-
purpose service such as Internet gaming or videoconferencing.
• DNS (Domain Name System) – An Internet Service that translates the names of websites into IP addresses.
• Domain Name - A descriptive name for an address or group of addresses on the Internet.
• DSL (Digital Subscriber Line) - A technology that allows data to be sent or received over existing traditional phone
lines.
• ISP (Internet Service Provider) - A company that provides access to the Internet.
• MTU (Maximum Transmission Unit) - The size in bytes of the largest packet that can be transmitted.
• NAT (Network Address Translation) - NAT technology translates IP addresses of a local area network to a different
IP address for the Internet.
• PPPoE (Point to Point Protocol over Ethernet) - PPPoE is a protocol for connecting remote hosts to the Internet
over an always-on connection by simulating a dial-up connection.
• SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric key identifying a wireless
local area network. For the wireless devices in a network to communicate with each other, all devices must be
configured with the same SSID. This is typically the configuration parameter for a wireless PC card. It corresponds
to the ESSID in the wireless Access Point and to the wireless network name.
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