the movement of computer information from one point to another by means of electrical or optical transmission systems.
|data communications networks||
the systems that move computer info from one point to another.
also moves computer information. Add voice and video.
|Why are data communications systems important?||
1. They provide faster information flow to businesses.
2. Businessess depend on a reliable data flow.
3. Enables the Internet services businesses depend on.
|What are 2 parts of an Internet address?||
1. Computer name
2. Domain name
|What's a domain name?||
The thing that follows the last period. ie: .edu or .com
|What's the computer name?||
The text name for an IP address.
|What are the 3 basci hardware components for a data communications network?||
1. Server 2. client 3. circuit
|3 business and personal data comunications applications?||
1. Video conferencing 2. email 3. Internet
|What is a group of microcomputers or terminals located in the same general area called?||
|What is a large central network that connects most everything on a single company site called?||
|What type of network encompasses a city or county area?||
|Which type of network spans cities, states, or national boundaries?||
|What type of facilities do MANs and WANs use?||
|Where are LANs and BNs located?||
while LANs and BNs are often located internally in an organization.
|Do LANs and BNs lease their facilities too?||
use owned facilities.
|What are a few examples of a client?||
desktops, laptops, tablets, cell phones.
|What is a pathway or connection between client and server called?||
|3 examples of a circuit are____________||
copper wire, fiber optic cable, wireless
|When WLANs use wireless circuits, they are called ____________||
|What do we call the pathway through which a message travels?||
|What do network models do?||
Divide communications networks into layers.