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Computer Concepts

CH 3 Networking: Connecting Computing Devices

backward compatibility The accommodation of current devices being able to use previously issued software standards in addition to the current standards.
bandwidth The maximum speed at which data can be transmitted between two nodes on a network. Usually measured in Mbps.
broadband A high-speed Internet connection such as cable, satellite, or digital subscriber line (DSL)
cable Internet A broadband service that transmits data over the coaxial cables.
Cat 6 cable A UTP cable that provides more than 1 Gb/s throughout.
client/server network A type of network that uses servers to deliver services to computers that are requesting them (clients).
coaxial cable A single copper wire surrounded by layers of plastic jacket; used mainly in cable Internet service.
data transfer rate The maximum speed at which data can be transmitted between two nodes on a network; measured in megabits per second (Mbps) or gigabits per second (Gbps).
digital subscriber line (DSL) A type of connection that uses telephone lines to connect to the Internet and that allows both phone and data transmissions to share at the same line.
Ethernet network A network that uses the Ethernet protocol as the means (or standard) by which the nodes on the network communicate.
fiber-optic cable A cable that transmits data at close to the speed of light along glass or plastic fibers.
fiber-optic service Internet access that is enabled by transmitting data at the speed of light through glass or plastic fibers.
firmware System software that controls hardware devices.
gigabit Ethernet The most commonly used wired Ethernet standard deployed in devices designed for home networks; provides bandwidth of up to 1 Gbps.
hacker Anyone who unlawfully breaks into a computer system (whether an individual computer or a network).
home area network (HAN) A network located in a home that's used to connect all of its digital devices.
home network server A device designed to store media, share media across the network, and back up files on computers connected to a home network.
Internet service provider (ISP) A company that specializes in providing Internet access. ISPs may be specialized providers, like Juno, or companies that provide other services in addition to Internet access (such as phone and cable television)
local area network (LAN) A network in which the nodes are located within a small geographic area.
metropolitan area network (MAN) A wide area network (WAN) that links users in a specific geographic area (such as within a city or country).
mobile broadboard Connection to the Internet through the same cellular network that cell phones use to get 3G or 4G Internet access.
network A group of two or more computers (or nodes) that are configured to share information and resources such as printers, files, and databases.
network adapter A device that enables the computer (or peripheral) to communicate with the network using a common data communication language, or protocol.
network administration Involves tasks such as (1) installing new computers and devices, (2) monitoring the network to ensure it's performing efficiently, (3) updating and installing new software on the network, and (4) configuring, or setting up, proper security for a network.
network architecture The design of a computer network; includes both physical and logical design.
network-attached storage (NAS) device A specialized computing device designed to store and manage network data.
network interface card (NIC) An expansion card that enables a computer to connect other computers or to a cable modem to facilitate a high-speed Internet connection.
network navigation device A device on a network such as a router or switch that moves data signals around the network.
network operating system (NOS) Software that handles requests for information, Internet access, and the use of peripherals for the rest of the network node, providing the service necessary for the computers on the network to communicate.
network-ready device A device (such as a printer or an external hard drive) that can be attached directly to a network instead of needing to attach to a computer on the network.
node A device connected to a network such a s a computer, a peripheral (such as a printer), or a communications device (such as a modem).
packet Data that is send through a network in bundles. In order for computers to communicate, it must be able to flow between network nodes.
peer-to-peer (P2P) network A network in which each node connected to the network can communicate directly with every other node on the network.
personal area network (PAN) A network used for communication among devices close to one person, such as smartphones, laptops, and tablets using wireless technologies such as Bluetooth and WiFi.
piggybacking The process of connecting to a wireless network without the permission of the owner of the network.
router A device that routes packets of data between two or more networks.
satellite Internet A way to connect to the Internet using a small satellite dish, placed outside the home and connected to a computer with coaxial cable. The company sends data to a satellite orbiting the Earth. The satellite sends data back to the dish and to the computer.
service set identifier (SSID) A network name that wireless routers use to identify themselves.
switch A device for transmitting data on a network. A switch makes decisions, based on the media access control address of the data, as to where the data is to be sent.
throughput The actual speed of data transfer that's achieved. It's usually less than the data transfer rate and is measured in megabits per second (Mbps).
transmission media The radio waves or the physical system (cable) that transports data on a network.
twisted-pair cable Cables made of copper wires that are twisted around each other and are surrounded by a plastic jacket (such as traditional home phone wire).
unshielded twisted-pair (UTP) cable The most popular transmission media option for Ethernet networks. UTP cable is composed of four pairs of wires that are twisted around each other to reduce electrical interference.
wide area network (WAN) A network made up of local area networks (LANs) connected over long distances.
wireless fidelity (wiFi) The 802.11 standard for wireless data transmissions established by the institute of Electrical and Electronics Engineers (EEE).
wireless range extender A device that amplifies wireless signal to get it out to parts of your home that are experiencing poor connectivity.
Each device connected to a network is known as a node.
A small network used for communication between personal computing devices is a PAN.
The fastest broadband Internet service is usually Fiber-optic.
The part of the network that establishes a communications channel between the nodes of the network is known as transmission media.
The device used to move data between two networks is called a router.
When setting up a home network, the router is attached directly to the broadband modem.
All of the following are methods to secure your wireless network except disabling WEP.
Which network-ready device facilitates file sharing and data backup? All of the above
To share files between computers on a Windows home network, you must create a homegroup.
Which of the following is not recommended to do when securing a home wireless network? Enable SSID broadcast.
Created by: TroyIS2241