AlphaShield 8800 user manual Carrier Sense Multiple Access/Collision Detect CSMA/CD

AlphaGIGABIT Secure Wireless Router 8800

Broadcast – Transmitting data in all directions at once

Browser – A program that allows you to access resources on the web and provides them to you graphically

Cable modem – A device that allows you to connect a computer up to a coaxial cable and receive Internet access from your Cable provider Card Bus – A newer version of the PC Card or PCMCIA interface. It supports a 32-bit data path, DMA, and consumes less voltage Carrier Sense Multiple Access/Collision Avoidance – CSMA/CA

Carrier Sense Multiple Access/Collision Detect – CSMA/CD

CAT 5 – Category 5. Used for 10/100 Mbps or 1Gbps Ethernet connections

Client – A program or user that requests data from a server

Collision – When do two devices on the same Ethernet network try and transmit data at the exact same time.

Cookie – Information that is stored on the hard drive of your computer that holds your preferences to the site that gave your computer the cookie CSMA/CA – Carrier Sense Multiple Access/Collision Avoidance

CSMA/CD – Carrier Sense Multiple Access/Collision Detection

Data – Information that has been translated into binary do that it can be processed or moved to another device

Data Encryption Standard – Uses a randomly selected 56-bit key that must be known by both the sender and the receiver when information is exchanged Data-Link layer – The second layer of the OSI model. Controls the movement of data on the physical link of a network

Database – Organizes information so that it can be managed and updated, as well as easily accessed by users or applications. DB-25 – A 25 ping male connector for attaching External modems or RS-232 serial devices

DB-9 – A 9 pin connector for RS-232 connections dBd - decibels related to dipole antenna

dBi - decibels relative to isotropic radiator dBm - decibels relative to one milliwatt Decrypt – To unscramble an encrypted message back into plain text

Default – A predetermined value or setting that is used by a program when no user input has been entered for this value or setting

Demilitarized zone – DMZ. A single computer or group of computers that can be accessed by both users on the Internet as well as users on the Local Network, but that is not protected by the same security as the Local Network.

DHCP – Dynamic Host Configuration Protocol. Used to automatically assign IP addresses from a predetermined pool of addresses to computers or devices that requests them

Digital certificate – An electronic method of providing credentials to a server in order to have access to it or a network Direct Sequence Spread Spectrum – DSSS. Modulation technique used by 802.11b wireless devices

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