$1)$ The central network connectivity device within a LAN that transmits data sent to it directly $($and only$)$ to the computer to which the message was addressed is called a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}2)$ A wired media that uses glass or plastic strands to send light signals at very high speeds is called $\_\_\_\_\_\_\_\_\_\_$ cable$\mathrm{.}3)$ The physical arrangement $($or layout$)$ of computers on a network is called the network $\_\_\_\_\_\_\_\_\_\_\mathrm{.}4)$ An internal computer component containing a port that allows the computer to connect directly to a LAN via a network cable is a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}5)$ A common wireless protocol designed for devices that are normally within about $30$ feet of each other is $\_\_\_\_\_\_\_\_\_\mathrm{.}6)$ A collection of computers, printers, and other devices connected together in order to share hardware, software, and communication is called a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}7)$ A private web site that can only be viewed by certain people outside of the organization is called a $\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}8)$ A network connectivity device used to transmit data between LANs and across WANs using the fastest and most efficient path is called a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}9)$ A network of computers located over a very large geographic area, such as between states or countries is called a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}10)$ Networks transmit data using either analog signals or $\_\_\_\_\_\_\_\_\_$ signals$11)$ A set of rules or standards that determine how computers communicate with each other is called a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}12)$ A network connectivity device that enables wireless devices to communicate with each other in a wireless network is called a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}13)$ A computer component that is either used to perform analog to digital signal conversion or to provide high$-$speed access to the Internet is called a $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\mathrm{.}14)\_\_\_\_\_\_\_$ is a protocol that uses packet switching to divide messages into smaller units called packetswhich are then sent separately across a network media$\mathrm{.}15)$ The speed at which data is transmitted across a network is measured in $\_\_\_\_\_\_$ per second.