2.7 Internet Connection Types Flashcards
What type of communication is satellite networking?
non-terrestrial communication (not on Earth)
What are 3 downsides to Satellite networking?
- Higher cost than terrestrial networking
- High latency
- Needs line of sight to satellite
What speeds are common for Satellite networking?
50 Mbit/s down, 3 Mbit/s up
What situations use Satellite networking?
remote sites, difficult-to-network sites
What frequency does satellite networking use?
2 GHz (high frequencies)
What type of frequency does Fiber use?
Frequencies of light
Which Internet connection type is difficult to repair?
fiber
Which Internet connection type allows high speed data communication over long distances?
fiber
WAN largely uses what kind of Internet connection type?
fiber
What type of multiplexing does fiber use?
SONET, wavelength division multiplexing
Cable broadband uses what frequency?
transmits across multiple frequencies and has different traffic types
What does DOCSIS stand for?
Data over Cable Service Interface Specification
Cable broadband offers high-speed networking at what speeds?
50 Mbits/s to 1,000+ Mbit/s is common
Cable broadband offers what 3 services?
data, voice, video
DSL uses what type of line?
telephone
What does ADSL mean?
the download speed is faster than the upload speed (asymmetric)
What speeds are typical for DSL?
200 Mbit/s down
20 Mbit/s up
What is the distance limitation for DSL from the CO?
10,000 feet
(faster speeds = the closer you are to the CO)
Why is it called cellular networks?
the land is separated into “cells”
How do cellular networks work?
an antenna covers a cell with certain frequencies
What is tethering?
Turning your phone into a wireless router
(like tethering a cord from your phone to the Internet)
What is a mobile hotspot?
A standalone device (so you can use your phone for other things)
What does WISP stand for?
Wireless Internet Service Provider
What scenarios is WISP used for?
connecting rural or remote locations
