Chapter 8 Flashcards
Internet connections can be broadly broken into two categories:
dial-up
broadband
Dial-up:
uses modems that operate over regular phone lines
What is the biggest advantage to dial-up?
Its cheap and relatively easy to configure
Remote Access Service (RAS):
Microsoft’s server-side product that grants user’s dial-up access to their network
Reasons why dial-up might be the right solution?
the only hardware it requires is a modem and a phone card
you can use it wherever there is phone service, which is almost everywhere
Digital Subscriber Line (DSL):
utilizes existing phone lines and provides fairly reliable high-speed access
What do you need for DSL to work?
A DSL modem
a network card in the computer
a network cable to plug into the modem
a phone cord to plug the DSL modem into the phone outlet
Different Forms of DSL:
HDSL
High bit-rate DSL
Different Forms of DSL:
VDSL
Very High bit-rate DSL
Different Forms of DSL:
RADSL
Rate-Adaptive DSL
Different Forms of DSL:
SDSL
Symmetric DSL
Different Forms of DSL:
ADSL
Asymmetric DSL
Cable Modem:
Provides high-speed Internet access through your cable service
Fiber-to-the-Home (FTTH):
means that the cables are 100 percent fiber from their data centers to the home
Satellite Internet:
uses a satellite dish to receive data from an orbiting satellite and relay station that is connected to the Internet.
Delay/Latency:
occurs because of the length of time required to transmit the data and receive a response via the satellite
The two major cellular standards used around the world:
The Global System for Mobile Communications (GSM)
Code Division Multiple Access (CDMA)
Mobile Hotspot:
Many cellular providers offer network cards that allow your laptop computer or other noncellular device to connect to the cellular network from anywhere you can get a cellular signal
Radio Frequency RF broadband Internet:
is the least popular broadband connection in use today
Internet Maximum Download Speed; Description:
Dial-up
Up to 56 Kbps; A regular analog phone line
Internet Maximum Download Speed; Description:
DSL
Up to 30 Mbps; Shares existing phone wires with voice service
Internet Maximum Download Speed; Description:
Cable
Up to 50 Mbps; Inexpensive broadband Internet access method with wide availability
Internet Maximum Download Speed; Description:
Fiber-optic
Up to 1 Gbps; Incredibly fast and just as expensive
Internet Maximum Download Speed; Description:
Cellular
Up to 20 Mbps; supported by cellular providers
