Comptuter Networking Chapter 17, 67-89 D.
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23 terms
Terms | Definitions |
|---|---|
 patch cable | A network cable that is used to connect a PC to a hub, switch, or router. |
| (Packet Internet Groper:) Ping | A Windows and Unix command used to troubleshoot network connections. It verifies that the host can communicate with another host on the network. |
| (Post Office Protocol, version 3:) POP3 | Used by a client to receive e-mail. |
| port | (1) As applied to services running on a computer, a number assigned to a process on a computer so that the process can be found by TCP/IP. Also called a port address or port number. (2) Another name for an I/O address. (3) A physical connector, usually at the back of a computer, that allows a cable from a peripheral device, such as a printer, mouse, or modem, to be attached. |
| (Point-to-Point Protocol:) PPP | A protocol that governs the methods for communicating via modems and dial-up telephone lines. The Windows Dial-up Networking utility uses PPP. |
| RJ-11 | A phone jack on a modem card. |
| RJ-45 | A connector used with twisted-pair cable that connects the cable to the NIC. |
| router | A device that connects one network to another. |
| (Service Set Identifier:) SSID | The name of the wireless access point. |
| (Simple Mail Transfer Protocol:) SMTP | The protocol used by e-mail clients and servers to send e-mail messages over the Internet. See POP and IMAP. |
| status light indicators | Most network cards also provide status light indicators near the RJ-45 port. Depending on the card, the lights might indicate the speed of transmission being used among those the card supports, connectivity, and activity. |
| 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. |
| (Transmission Control Protocol/Internet Protocol:) TCP/IP | The suite of protocols that supports communication on the Internet. TCP is responsible for error checking, and IP is responsible for routing. |
| (Time Division Multiple Access:) TDMA | A protocol standard used by cellular WANs and cell phones. |
| Telnet | The protocol is used by client/server applications to allow an administrator or other user to control a computer remotely. |
| (User Datagram Protocol:) UDP | A connectionless protocol that does not require a connection to send a packet and does not guarantee that the packet arrives at its destination. UDP is faster than TCP because TCP takes the time to make a connection and guarantee delivery |
| (Virtual Private Network:) VPN | works by using encrypted data packets between a private network and a computer somewhere on the Internet. |
| (Wide Area Network:) WAN | A network or group of networks that span a large geographical area. |
| (Wired Equivalent Privacy:) WEP | A data encryption method used on wireless networks that uses either 64-bit or 128-bit encryption keys that are static keys, meaning the key does not change while the wireless network is in use. |
| (Wireless Fidelity:) Wi-Fi | Another term for the IEEE 802.11b standard. |
| (WiFi Protected Access:) WPA | 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. |
| (WiFi Protected Access 2:) WPA2 | 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. |
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