Chapter 10 Quiz

true
all types of computers and mobile devices serve as sending and receiving device in a communications system
false
files on an intranet are also accessible from the internet
true
disadvantages of BANs include data validity and security
false
a client computer is sometimes called a host computer
true
voice and video calling require large amounts of bandwidth
false
UWB requires line-of-sight transmission, so its technology is not as widespread as IrDA
true
for successful communications with NFC devices, the devices or objects must touch or be placed within an inch or two of each other
true
DSL transmits on existing standard copper phone wiring
false
large corporations, phone networks, the internet and other networks with large amounts of traffic use DSL
false
a broadband modem is a communications device that converts digital signals to analog signals and analog signals to digital signals, so that data can travel along an analog phone line
true
although some routers may be able to connect more than 200 wired and/or wireless computer and mobile devices, the performance of the router may define as you add connections
false
with satellite internet connections, uplink transmissions usually are slower than downlink transmissions
transponder
isn’t necessary for successful communications
intranet
is an internal network that uses internet technologies
PAN
is a network that connects computers and devices in an individuals workspace using wired and wireless technology
peer to peer (P2P)
network is a simple, inexpensive network architecture that typically connects fewer than 10 computers
token
a special series of bits that functions like a ticket
bluebugging
occurs when cyberthieves exploit bluetooth devices that have been paired
NFC
is not a digital dedicated line
capping
the practice used by some ISPs that provides a certain amount of data usage at the optimal speed
value-added network
third-party business that provides networking services, such as EDI services, secure data and information transfer, storage or email
client
computers or mobile devices on the network that rely on the server for its resources
network standard
guidelines that specify the way computers access the medium to which they are connected, the type(s) of medium used, the speeds used on different types of networks, and the type(s) of physical cable and/or the wireless technology used
ethernet
network standard that specifies no computer or device on the network that rely on the server for its resources
protocol
standard that outlines characteristics of how two devices communicate on a network
TCP/IP
network protocol that defines how messages are routed from one end of a network to the other, ensuring the data arrives correctly
packet sniffer software
program that monitors and logs packet traffic for later analysis
LTE
network standard that defines how high speed cellular transmissions use broadcast radio to transmit data for mobile communications
bandwidth
the amount of data, instructions, an information that can travel over transmission media
latency
the time it takes a single to travel form one location to another on a network