CIS Ch. 6

A network is a network of high-capacity routers and fiber-optic communications links that provides the main routes for data traffic across the Internet

Maintain backbone links and routers Examples: AT&T, Cogent Communications, Hurricane Electric, Sprint, and Verizon

Ties together NSP equipment and links

A company that offers Internet access to individuals, businesses, and smaller ISPs

Contains circuity that converts the data-carrying signals from your computer to signals that can travel over various communications channels

A combination of protocols that work together

Breaks a message or file into packets

Responsible for addressing packets so that they can be routed to their destination

A permanently assigned address

Temporarily assigned address

Linked on your ISP and is online whenever your computer and model are on, even if you are not actively accessing the Internet

Every domain name corresponds to a unique IP address that has been entered into this huge database

Domain Name Server

Been used by governments to keep citizens away from Web sites that supply politically or culturally inflammatory information

Recognized by the United States and other governments as the global organization that coordinates technical management of the Internet's Domain Name System

The elapsed time for data to make a round trip from point A to point B and back to point A

Records a packet's path in addition to its round-trip speed

The rate of data that is uploaded from your computer to the Internet

The rate of data downloaded to your computer

When upstream speeds differ from downstream speeds

When upstream and downstream speeds are the same

Links your computer to an ISP from a stationary point, such as a wall socket or roof-mounted antenna

Allows you to easily move your access device, as in the case of vehicle-mounted satellite dishes that can be deployed when the vehicle is parked

Allows you to use the Internet as you are on the go, such as using a cell phone to collect your e-mail while you are traveling by train

A fixed Internet connection that uses a voiceband modem and telephone lines to transport data between your computer and your ISP

Converts the signals from your computer into audible analog signals that can travel over telephone lines

A high-speed, digital, always-on, Internet access technology that runs over standard phone lines

A device that connects a computer to a telephone line and converts computer data signals into signals compatible with DSL

Prevents voiceband signals from interfering with DSL signals

A means of distributing always-on broadband Internet access over the same infrastructure that offers cable television service Examples: Comcast, Cox, and Charter

To handle Ethernet protocols and a cable modem, which converts your computer's signal into one that can travel over the CATV network

A data transport technology that includes security filters

A means of distributing always-on, high-speed, asymmetric Internet access by broadcasting signals to and from a personal satellite dish

A device that modulates the data signals from a computer into a frequency band that can be carried to the satellite dish, where it is converted to another frequency, amplified, and transmitted

Designed to offer Internet access to homes and businesses by broadcasting data signals over areas large enough to cover most cities and lying areas

An area in which the public can access a Wi-Fi Network that offers Internet service Examples: Coffee shops, RV parks, hotels, community centers, college campuses, and airports

A communications protocol that provides Internet access from handheld devices, such as cell phones

Mobile Broadband

A brand name for a compact, mobile, wireless router offered by Novatel Wireless

The ability to serve as a Wi-Fi hotspot