Understanding Wired & Wireless Networks
Terms in this set (35)
Straight through cables
A type of twisted pair copper wire cable for local area network (LAN) use.
An 802.11 networking framework in which devices or stations communicate directly with each other, without the use of an access point (AP).
Advanced Encryption Standard
A symmetric block cipher used by the U.S. government to protect classified information and is implemented in software and hardware throughout the world to encrypt sensitive data.
The reduction of the amplitude of a signal, electric current, or other oscillation
Connect two routers with the capability of sharing the network resources.
Cat-5e network cabling is used as a cabling infrastructure for 10BASE-T (Ethernet), full duplex 100BASE-TX (Fast Ethernet) and 1000BASE-T (Gigabit Ethernet, or GbE) networks.
A standardized twisted pair cable for Ethernet and other network physical layers that is backward compatible.
A practice commonly used in IEEE 802.11 implementations in which two adjacent channels within a given frequency band are combined to increase throughput between two or more wireless devices.
An electrical test equipment used to determine if an electrical path can be established between two points.
A type of twisted pair copper wire cable for LANs (local area network) in which the wires on the cable are crossed over.
Unwanted transfer of signals between communication channels.
The electromagnetic field generated by a network cable or network device, which can be manipulated to eavesdrop on conversations or to steal data.
Electromagnetic Interference in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.
Fiber optic cable
A high-speed data transmission medium. It contains tiny glass or plastic filaments that carry light beams.
An 802.11 networking framework in which devices communicate with each other by first going through an Access Point (AP)
The combination of two or more electromagnetic waveforms to form a resultant wave in which the displacement is either reinforced or canceled.
Optical fiber that is designed to carry multiple light rays or modes concurrently, each at a slightly different reflection angle within the optical fiber core.
Multiple-Input Multiple-Output - An antenna technology for wireless communications in which multiple antennas are used at both the source (transmitter) and the destination (receiver).
Near end crosstalk - An error condition that can occur when connectors are attached to twisted pair cabling. NEXT is usually caused by crossed or crushed wire pairs.
Physical Data Rate - The datarate measured at a reference point in the interface between the datalink layer and physical layer, and may consequently include data link and higher layer overhead.
A special insulation that has low smoke and low flame characteristics.
Port-based network access control
It is part of the IEEE 802.1 group of networking protocols. It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN.
Punch down tool
It is used for inserting wire into insulation-displacement connectors on punch down blocks, patch panels, keystone modules, and surface mount boxes.
Radio frequency interference
A disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.
Service set identifier
A sequence of characters that uniquely names a wireless local area network (WLAN).
Shielded twisted pair (STP) cables
A shield that protects the transmission line from electromagnetic interference leaking into or out of the cable.
Straight through cables
Most commonly used to connect a host to client
A type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources.
A technology for wireless local area networking with devices based on the IEEE 802.11 standards.
WiFi Protected access
Two security protocols. and security certification programs developed by the WiFi Alliance to secure wireless computer networks.
Wired Equivalent Privacy
A security algorithm for IEEE 802.11 wireless networks.
Wireless access point
A networking hardware device that allows a Wi-Fi compliant device to connect to a wired network.
Wireless LAN - A term to refer to a Local Area Network that does not need cables to connect the different devices. Instead, radio waves and IEEE 802.11 are used to communicate.
Wireless network adapter
A device that adds wireless connectivity to a laptop or desktop computer.
Takes an existing signal from a wireless router or wireless access point and rebroadcasts it to create a second network.
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