Lesson 7: LAN Technologies Flashcards
A network composed of only independent wireless computers in which each device participates in forwarding packets.
Ad Hoc Wireless Network
Means that a cable can only carry one signal one way at one time.
Baseband
The basic unit of information storage; a single binary digit that is either 0 or 1. The term ___s is also used to describe the encapsulation component when data reaches the Physical layer of the OSI Model.
Bit
A technique used to increase network throughput by using two or more network interface cards (NICs), channels, or connections-instead of just one to push data through.
Bonding
A type of communications technology that can carry multiple signals simultaneously. See baseband.
Broadband
A method of communication in which one computer sends packets to all available computers on the network. See multicast and unicast.
Broadcast
A type of communications network that uses broadcast transmissions to send data across a local network. Ethernet uses this type of networking.
Broadcast Networking
A contention-based access method used by Ethernet to access wireless networks.
Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)
The primary contention-based access method that Ethernet uses to access wired networks.
Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
A specific sub range of radio frequencies that has been set aside within the larger 2.4 GHz range.
Channel
A data transmission technique that uses two or more channels, instead of just one, to push data through a connection at a higher transfer rate.
Channel Bonding
An event in which two different data frames from two different computers interfere with each other because they were released onto the network at the same time.
Collision
The physical section of a network where the various devices connected to it run the risk of having their signals collide with each other because all the devices present use a shared media.
Collision Domain
A method of accessing a network in which the different nodes on the network segment compete to see which node can send out its packet first. (Or, in other words, a contest between nodes to see which one can access the network first. I wonder if there’s a ribbon. I have no clue what the hell this means, so maybe I’ll read this section of the book)
Contention-Based Access Method
How far data has to travel to get from one point on a network to another.
Distance
A process that allows either the header or the entire data packet to be encoded using a predetermined algorithm in such a way that if an eavesdropper on the network can intercept the data as it’s transmitted, he still can’t understand it without knowing how to decode it.
Encryption
One of the oldest and the most widely used LAN technologies in use today that defines numerous wiring and frame header standards.
Ethernet
A revision of Ethernet_802.3 in which an identifier number is included to enable the frame header to work with the Data Link layer of the OSI Model. (WTF)
Ethernet_802.2
A version of Ethernet, developed by Novell, that doesn’t include a Layer 2 Data Link identifier. As a result, it can work only with Novell’s IPX packets. See Novell Ethernet. (WTF)
Ethernet_802 .3
A method of combining the bandwidth from two or more Ethernet links, to push data through a connection at a higher rate.
Ethernet Bonding
The most widely used Ethernet frame type that can be used directly by the Internet Protocol (IP).
Ethernet DIX/Ethernet II
revision of the Ethernet_802.2 Logical Link Control standard that allows a larger number of protocols to run on the network.
Ethernet SNAP (Subnetwork Access Protocol)
A data transmission speed of billions of bits per second.
Gigabits Per Second (gbps)
A type of wireless network that uses a wireless access point (WAP) to control access and is often connected to a larger wired network.
Infrastructure Wireless Network
A data transmission speed of thousands of bits per second.
Kilobits Per Second (kbps)
A bonding method in which multiple network cables and ports are used to increase link speed.
Link Aggregation
A technology in which only a pre-programmed MAC address is allowed access to a specific wireless access point (WAP).
MAC Address Filtering
A data transmission speed of millions of bits per second.
Megabits Per Second (mbps)
A form of bonding which makes it possible to bind two or more ports together on certain switches to allow for fault tolerance or greater throughput between switches or between a switch and a router. Also known as port bonding. (WHAT?!)
Multilink Trunking (MLT)
A bonding technique that provides network redundancy.
Network Fault Tolerance (NFT)
Another name for the Ethernet_802.3 frame type, which can run only with Novell’s IPX packets. (WTF is a Novell Packet)
Novell Ethernet
A form of bonding which makes it possible to bind two or more ports together on certain switches to allow for fault tolerance or greater throughput between switches or between a switch and a router. Also known as Multilink Trunking (MLT). (WTF)
Port Bonding
A bonding technology that protects data stored at the file system level by providing redundancy across network nodes much like RAID does across hard disk.
Redundant Array of Independent Nodes (RAIN)
The network name for a particular wireless access point (WAP).
Service Set Identifier (SSID)
A special category of small LANs used for home offices or small business offices that only contains a small number of networked devices that are well-integrated with the other network devices in the home or office in which it is set up.
Small Office Home Office (SOHO)
The measure of how much data can move through a network in a given amount of rime.
Speed
A standardized multiplexing protocol used to transfer multiple digital bit streams, also called channels, over fiber-optic cables.
Synchronous Optical Network (SONET)
A data transmission speed of trillions of bits per second.
Terabits Per Second (tbps)
