Van Zanden: December 2007

1. IEEE- Institute of Electrical and Electronic Engineers; an international non-profit professional organization that works towards the advancement of techonlogy that is related to electricity.

2. IEEE 802.3- It is a group of IEEE standards that define the physical layer, media access control (MAC) sublayer of the data link layer, and Ethernet. There are physical connections made between nodes by different types of copper or fiber cables.

3. Ethernet- defines a group of wiring/signaling standards for the physical layer, through the data link/ media access control layer; and is a common adress format. It is a frame-based computer network technology used in local area networks (LANs).

4. Star Topology- could be known as a star network, the most common network setups; each device on each computer on a network connects to a central hub. A disadvantage is that is the hub fails, all the compuers connected to that hub would become disconnected.

5. Hub- a device that is used for connecting many twisted pair/ fiber optic ethernet devices together, which makes the devices act as one. these hubs work at the physical layer of the operating system; are also responsible for forwarding jam signals to all ports if there is a detected collision.

6. Proxy Server- in computer networks it is a server that services the requests of the "clients"; by forwarding the "client's" requests to other servers. It provides the resource by connecting to the specified server by the request of the clients.

7. Collision- in networks, when two devices from the same network attempt to transmit data at the same time.

8. Firewall- a system that protects networks from unauthorized users and viruses, and can be used in software, hardware, or both of them. Can also control the amount of data that leaves a network.

9. Protocol- controls/enables the connection, data transfer and communication between computers. It is known as a set of rules for communication. Can be used be hardware, software, or both.

10.Broadcast Domain- A logical network segment that any computer/ any other devices can connect to a network and can directly trasmit anything to any other domain without having to pass thorugh a routing device, but they have to be connected to the same subnet address and have the same VLAN installed or defaulted.

11. Intranet- a private computer network that uses internet protocols. It connectivity to securly share a part in an organization's information and/or operations with the companies employees. Sometimes it only refers to an internal website.

12. NIC- Stands for network interface card. It is used to connect a computer to an Ethernet network. Can be used in external or internal transceivers.

13. Router- a device that connects networks together. Extracts the destination of a packet of data that it recieves and then choses the best path for that packet to travel to the desired computer.

14. Terminator- used to absorb signals so that the signals don't reflect back down the line. It is a device that is attached to the end-points of a bes network.

15. Plenum Cable- a cable that is stiffer and stronger than a regualar network cable. It is used to run through a plenum space in a building.

16. Block Coding- a type of channel coding. It adds to a message so, at a reciever, the message can be decoded with the least amount of errors, considering if the information rate does not exceed the channel's capacity.

17. Plenum- it is the space, in a building, that is used for ventallation. air conditioning, or heat equipment. It is also the space where the plenum cables go. The space is to small for a human to fit in.

18. MAC Address- an address that is connected to most network adapters. It's a number that is acting like a name for a network adapter.

19. Bridge- connects multipe network segments at the data link layer of an Operating system model. Similar to repeaters or network hubs, works by bridging where there is traffic in the data flow of a network.

20. Point to point technology- when information is passed from one point in a network to a different point in the same network or to a different network.

21. Late collision- a type of collision that occurs in after the first 512 bit times of data transmitted by a transmitting station. Usually found in CSMA/CD protocol standtards. If a late collision is left for a period of time the data that is being transmitted can be lost.

22. MAU- Stands for multiple access unit. It is an Ethernet transceiver. A device that is physically connected to networks by means of a star topology layout.

23.Full duplex operation- when there is a connection between two devices that are capable of sending data between them in both directions. Can only link two devices together.

24. Half duplex operation- when there is a connection between two network nodes, there is only a transmittion of data in one direction at a time. Refers to any number of connections between devices that are transmitting things back and forth.

25. Baud- a unit for measuring analog signaling. One baud is the same as one bit per second, but at a higher speed more bits can be transfered through a single baud.

26. Bit rate- the amount of bits that are transmitted in a time period.

27.Link integrity test- when the data path is checked by the links between the networks.

28. 10 base (generic)- most common numerical system. Each number has 10 as its base. It is just the numbers that you count by. Also known as the decimal numeral system.

29. 100 base (generic)- when a fast ethernet is going at 100Mbits/s.

30. LLC- Stands for library link code. It is the codes that a library puts onto their homepage for people to use to get to other links that the library offers quickly.

31. AUI- Stands for Attachment Unit Interface. It is a 15 pin connector that would provide a path between an Ethernet's nodes and the MAU.

32. Packet- a unit of binary data that is capable of being routed throughout a computer's network.

33. Bandwidth- the data rate that is supported by a network's connection or interface. The total distand that is between the hightest and lowest signals of a communication channel.

34. Repeater- regenerates any incoming signals from a network.

35. Octet- represents an eight bit quantity of signals or data in a network.

36.Port- an endport/channel of network communication.

37. TCP- Stands for transmittion control protocol. Helps with the delivery of bytes to a network by making it easier for the information to go where it is suppost to go.

38. IP- Stands for internet protocol. A protocol that is responsible for communtication across a packet-switched internetwork.

39. FTP- Stands for file transfer protocol. Used to transfer data from one computer network to another by means of the internet.

40. Logical address- refers to a network layer address. ex. and IP address.

41. DNS- Stands for domain name service. Serves as a phone book in the internet. Also stores informaton. It is an important component for unsing the internet.

Bibliography:

http://en.wikipedia.org/wiki/IEEE

http://en.wikipedia.org/wiki/IEEE_802.3

http://en.wikipedia.org/wiki/Ethernet

http://www.computerhope.com/jargon/s/startopo.htm

http://en.wikipedia.org/wiki/Ethernet_hub

http://en.wikipedia.org/wiki/Proxy_server

http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci211814,00.html

http://www.intel.com/products/glossary/body.htm

http://en.wikipedia.org/wiki/Protocol_(computing)

http://en.wikiepdia.org/wiki/Broadcast_domain

http://en.wikiepdia.org/wiki/Intranet

http://www.erg.abdn.ac.uk/users/gorry/course/lan-pages/nic.html

http://en.wikipedia.org/wiki/Router

http://www.webopedia.com/TERM/T/terminator.html

http://www.tech-faq.com/plenum-cable.shtml

http://en.wikipedia.org/wiki/Block_code

http://en.wikipedia.org/wiki/Plenum