Internet Access Technologies Flashcards
(DSL) DSL stands for a ______ _________ ____.
Digital, Subscriber, Line
(DSL) DSL is a popular technology that is used by homes and businesses to access _________ ____ over the internet.
broadband, data
(DSL) The advantage of DSL is that it can carry both voice and data at the ____ ____.
same, time
(DSL) It has a DSL modem that uses common telephone lines to carry its ____.
data
(DSL) It’s a high-speed connection that is much faster than your regular ____-__ ______.
dial, up, modems
(ADSL) There are a few different forms of DSL, and one is called ADSL, which stands for ___________ ______ __________ ____.
Asymmetric, Digital, Subscriber, Line
(ADSL) This is called asymmetric because the download speed is considerably ______ than the upload speed.
faster
(ADSL) This type of DSL is typically used in _____ and is the ________ form of DSL.
homes, cheapest
SDSL stands for _________ _______ _________ ____, and as the name implies, the download and upload speeds are the ____.
Symmetric, Digital, Subscriber, Line, same
(SDSL) This type is typically used in __________.
businesses
(SDSL) This type is typically used in businesses.
(VDSL) VDSL stands for Very High Bit DSL, and this is a very fast form of DSL.
It has download speeds of over 50 megabits per second over copper wire, but because it uses copper wire, it’s only made for short distances.
For long distances, it can also use fiber optic cable.
(VDSL) It has download speeds of over 50 megabits per second over copper wire, but because it uses copper wire, it’s only made for short distances.
(VDSL) For long distances, it can also use fiber optic cable.
(Cable Broadband) It uses a cable modem with an attached _______ cable, which provides a link to the _______ _______ ________.
coaxial, internet, service, provider
(Cable Broadband) Like DSL, cable is very ____ with speeds of __ megabytes or more.
fast, 50
(Cable Broadband) Cable is typically provided by the ____ ________ that provides cable television to their customers.
same, provider
POTS/PSTN stands for _____ ___ _________ _______ and ______ ________ _________ _______, and these are just your plain old telephone lines.
Plain, Old, Telephone, Service, Public, Switched, Telephone, Network
(POTS/PSTN) These are slowly becoming obsolete by people who use the internet because of their ____ ______.
slow, speeds
(POTS/PSTN) telephone lines do have an advantage, and that is that they are basically __________ and they are fairly _____ to use.
everywhere, cheap
(Satellite) Satellite communication is pretty _________ and it’s mainly used where no other services are ________ like phones, cable, or DSL.
expensive, provided
(Satellite) because of the increasing availability of these other options (phones, cable, or DSL), satellite is ______ ____.
rarely, used