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25 Cards in this Set

  • Front
  • Back
A generalized term defining a primary cable or system that connects networks together.
Backbone
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 divice that connects tow 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 ehternet bridge only looks at the ethernet address. I will fileter and forward packets based MAC addresses and operate at Level 2 (data link) of the OSI model
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 tv. 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) packets and waits to receive a clear to send (CTS) packet before sending. Once the CTS is received the sender sends the pakcet of information.
CSMA/CA
The access method ehternet systems use in local area networking technologies enabling packets of data to flow through the network ultimately to reach address locations.
CSMA/CD
Describle any device that 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.
EMI Electromagnetic Interference
A high speed channel for transmiting data, made of high purity glass sealed wihtin an opaques tube. Fasterthan conventional copper wire such as coaxial cable
Fiber optice cable
In a TCP/IP network, the newarest router toa 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 Categaroy 5e or higher.
1000Base-TX
A group of PC's connected together via cabling, radio, or infrared that use this connectivity to share resources such as printers and mass storage.
LAN
Mesh topology is not in common in computer networking. With mesh topology every workstation has
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 information.
Packets
The implementation of gagabit ethernet running over multimode fiber optic cable instead of copper twisted pair used short wavelength laser.
1000BaseSX
A network topology that connects the computers ina circular fashion. If one computer fails, the entire network fails, os 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 adress for the portocol being used. Thses devices operate at layer 3 (network) of the OSI 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 external interference. Older token ring networks are the only common network technology that uses this cabling.
Shielded Twisted Pair (STP)
All compuers 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 traansmit twhen it has the token.
Token Passing
A popular type of cabling for the telepohone 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 less interference. The cable has no metallic shielding to protect the wires from external interference, unlike its cousin, STP.
Unshielded Twisted Pair (UTP) cabling
A geographically dispersed network created by linking various somputers and local area networks over long distances, generally using leased phone lines. There is no firm difiding line between a WAN and a LAN
WAN ( Wide Area Network)