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Ch 17 Sec 4

Vocabulary

QuestionAnswer
private IP address proxy server An IP address that is used on a private TCP/IP network that is isolated from the Internet.
shielded twisted-pair cable A cable that is made of one or more twisted pairs of wires and is surrounded by a metal shield.
static IP address An IP address permanently assigned to a workstation.
subnet mask A group of four numbers (dotted decimal numbers) that tell TCP/IP if a remote computer is on the same or a different network.
switch A device used to segment a network. It can decide which network segment is to receive a packet, on the basis of the packet’s destination MAC address.
TCP/IP (Transmission Control Protocol/Internet Protocol The suite of protocols that supports communication on the Internet. TCP is responsible for error checking, and IP is responsible for routing.
ThickNet An outdated Ethernet standard that operates at 10 Mbps and uses thick coaxial cable up to 500 meters long.
ThinNet An outdated Ethernet standard that operates at 10 Mbps and uses small coaxial cable up to 500 meters long.
unshielded twisted pair (UTP) cable A cable that is made of one or more twisted pairs of wires and is not surrounded by shielding.
WAN (wide area network) A network or group of networks that span a large geographical area.
Wi-Fi (Wireless Fidelity) IEEE specifications for wireless communication and data synchronization. Also known as Wi-Fi. IEEE b/g/n standards are current, and IEEE 802.11a is outdated. Apple Computer’s versions of 802.11 standards are called AirPort and AirPort Extreme.
WINS (Windows Internet Naming Service) A Microsoft resolution service with a distributed database that tracks relationships between NetBIOS names and IP addresses. Compare to DNS.
wireless LAN (WLAN) A type of LAN that does not use wires or cables to create connections, but instead transmits data over radio or infrared waves.
WPA (WiFi Protected Access) A data encryption method for wireless networks that use the TKIP (Temporal Key Integrity Protocol) encryption method and the encryption keys are changed at set intervals while the wireless LAN is in use.
WPA2 (WiFi Protected Access 2) A data encryption standard compliant with the IEEE802.11i standard that uses the AES (Advanced Encryption Standard) protocol. WPA2 is currently the strongest wireless encryption standard.
Created by: mattschultice