Ch.8 Communications and Networks
Terms in this set (25)
One of the most dramatic changes in connectivity and communications in the past few years has been.
Widespread use of mobile devices with wireless internet connectivity.
In a communication system, which among the following originate and accept messages in the form of data, information, and/or instructions?
Sending and receiving devices.
In a communication system, which among the following convert messages into packets that can travel across the communication channel?
Which physical connection is the fastest?
Which among the following is considered a line-of-sight communication medium?
WiMax stands for ________.
Worldwide Interoperability for Microwave Access
Microwave communication uses high-frequency ________.
________ is a term relating to sending data to a satellite.
The GPS device in an automobile uses which communication channel?
A service that uses existing phone lines to provide high-speed connections is called ________.
Cellular services use ________ to provide wireless connectivity to the Internet.
3G and 4G
The capacity of a communication channel is measured in ________.
Using this type of communications channel, several users can simultaneously use a single connection for high-speed data transfer.
Every computer on the Internet has a unique numeric address called a(n) ________.
________ is the process of breaking down information sent or transmitted across the Internet into small parts.
The ________ is the central node that coordinates the flow of data by sending messages directly between the sender and receiver nodes.
In a computer network, this node that requests and uses resources available from other nodes.
This device enables connectivity between two LANS or a LAN and a larger network.
A wireless access point that provides Internet access in a public place such as a coffee shop, library, bookstore, or university.
A network topology in which the central node is connected to two or more subordinate nodes that, in turn, are connected to other subordinate nodes.
This type of network strategy uses central servers to coordinate and supply services to other nodes on the network.
Organizations use the following to allow suppliers and others limited access to their networks.
All communications between a company's internal networks and the outside world pass through this server.
Remote users can connect to an organization's network through this type of secure private connection.
This type of network topology does not use a specific physical layout.
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