Comp Ch 8

Tree
A network topology in which the central node is connected to two or more subordinate nodes that, in turn, are connected to other sub-ordinate nodes.
DSL
A service that uses existing phone lines to provide high-speed connections is called _______.
Hotspot
A wireless access point that provides Internet access in a public place such as a coffee shop, library, bookstore, or university.
Proxy
All communications between a company’s internal networks and the outside world pass through this server.
3G and 4G cellular networks
Cellular services use _______ to provide wireless connectivity to the Internet.
IP Address
Every computer on the Internet has a unique numeric address called a(n) _______.
Connection devices
In a communication system, which among the following convert messages into packets that can travel across the communication channel?
Sending and receiving devices
In a communication system, which among the following originate and accept messages in the form of data, information, and/or instructions?
Client
In a computer network, this node that requests and uses resources available from other nodes.
Long Term Evolution
LET stands for ________.
Radio Waves
Microwave communication uses high-frequency _______.
Widespread use of mobile devices with wireless internet connectivity
One of the most dramatic changes in connectivity and communications in the past few years has been _______.
Extranets
Organizations use the following to allow suppliers and others limited access to their networks.
VPN
Remote users can connect to an organization’s network through this type of secure private connection.
Satellite
The GPS device in an automobile uses which communication channel?
Switch
The _______ is the central node that coordinates the flow of data by sending messages directly between the sender and receiver nodes.
Bandwidth
The capacity of a communication channel is measured in _______.
TCP/IP
The essential features of this include identifying, sending, and receiving devices and breaking information into small parts for transmission across the Internet.
Network gateway
This device enables connectivity between two LANS or a LAN and a larger network.
Client/server
This type of network strategy uses central servers to coordinate and supply services to other nodes on the network.
Mesh
This type of network topology does not use a specific physical layout.
Broadband
Using this type of communications channel, several users can simultaneously use a single connection for high-speed data transfer.
Microwave
Which among the following is considered a line-of-sight communication medium?
Fiber-optic cable
Which physical connection is the fastest?
Worldwide Interoperability for Microwave Access
WiMax stands fore ________.
Packetization
_______ is the process of breaking down information sent or transmitted across the Internet into small parts.