Mod 140 Network
Terms
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- A generalized term defining a primary cable or system that connects networks together.
- Bacokbone
- Digital signaling that has only one signal on the cable at a time. The signals are in one of three states: one, zero, or idle.
- Baseband Signaling
- A device that connects two networks and passes traffic between them based only on the node address, so that traffic between nodes on one network does not appear on the other network. For example, an Ethernet bridge only looks at the Ethernet address. It
- Bridge
- A type of signaling that sends multiple signals (channels) over the cable at the same time. The best example of broadband signaling is cable television. The zero, one, and idle states exist on multiple channels on the same cable.
- Broadband Signaling
- A configuration wherein all computers connect to the network via a central bus cable called a backbone.
- Bus Topology
- A media access method that sends a request to send (RTS) packet and waits to receive a clear to send (CTS) packet before sending. Once the CTS is received, the sender sends the packet of information
- Carrier Sense/Multiple Access with Collision Avoidance (CSMA/CA)
- The access method Ethernet systems use in local area networking technologies enabling packets of data to flow through the network ultimately to reach address locations.
- Carrier Sense/Multiple Access with Collision Detection (CSMA/CD)
- Describes any device that can send and receive data simultaneously.
- Full-Duplex
- Electrical interference from one device to another, resulting in poor performance of the device being interfered with.
- Electromagnetic Interference (EMI)
- A high-speed channel for transmitting data, made of high-purity glass sealed within an opaque tube. faster than conventional copper wire such as coaxial cable
- Fiber-Optic Cable
- In a TCP/IP network, the nearest router to a particular host. This router’s IP address is part of the necessary TCP/IP configuration for communicating with multiple networks using IP.
- Gateway
- Most commonly known as Gigabit Ethernet, allows 1000Mbps throughput on standard twisted-pair copper cabling rated at Category 5e or higher.
- 1000Base-TX
- A group of PCs connected together via cabling, radio, or infrared that use this connectivity to share resources such as printers and mass storage.
- LAN(Local Area Network)
- Mesh topology is not in common in computer networking. With Mesh topology, every workstation has a connection to every other component of the network.
- Mesh Topology
- Basic component of communication over a network. A group of bits of fixed maximum size and well-defined format that is switched and transmitted as a complete whole through a network. It contains source and destination address, data, and control informatio
- Packets
- The implementation of Gigabit Ethernet running over multimode fiber-optic cable (instead of copper twisted pair). Uses short wavelength laser.
- 1000BaseSX
- A network topology that connects the computers in a circular fashion. If one computer fails, the entire network fails, so this topology is rarely used
- Ring Topology
- A device connecting separate networks that forwards a packet from one network to another based on the network address for the protocol being used. These devices operate at Layer 3 (Network) of the OSI seven-layer model.
- Router
- The bus cable to which the computers on an Ethernet network connect
- Segment
- A popular cabling for networks composed of pairs of wires twisted around each other at specific intervals. The twists serve to reduce interference. The more twists, the less interference. The cable has metallic shielding to protect the wires from external
- Shielded Twisted Pair (STP)
- All computers are directly cabled to a hub
- Star Topology
- A device that filters and forwards traffic based on some criteria. A bridge and a router are both examples of switches.
- Switch
- A media access method in which a token is passed around a ring in an orderly fashion from one device to the next. A station can only transmit when it has the token.
- Token Passing
- Unshielded Twisted Pair (UTP) cabling: A popular type of cabling for telephone and networks, composed of pairs of wires twisted around each other at specific intervals. The twists serve to reduce interference (also called crosstalk). The more twists, the
- Unshielded Twisted Pair (UTP)
- A geographically dispersed network created by linking various computers and local-area networks over long distances, generally using leased phone lines. There is no firm dividing line between a WAN and a LAN.
- WAN (Wide Area Network)