18 Questions
What is one increasingly common form of internet connectivity mentioned in the text?
Satellite networking
Why is satellite connectivity described as relatively expensive?
Because it requires a rocket to take the satellite connection into space
What is a challenge when communicating with satellites in space, as mentioned in the text?
High latency due to the distance to space and back
What are the typical speeds for satellite internet connections mentioned in the text?
50 megabits down and 3 megabits up
Why might someone use a satellite connection for internet connectivity, as mentioned in the text?
When no other type of internet connectivity is available
What is the specific device used to communicate with a satellite for internet connectivity?
Satellite dish
What is the primary drawback of satellite internet connections?
High latency
What technology allows fiber optic internet connections to offer high-speed communication over long distances?
Fiber optics
What is the standard for sending data over cable networks, supporting very high speeds and enabling multiple streams of data?
DOCSIS
What technology uses existing telephone lines for high-speed internet connections, with asymmetric download and upload speeds?
DSL
What can disrupt satellite internet connections due to rain fade?
Higher frequencies
Which type of network can provide internet connectivity using tethering or hotspots, with speeds limited by distance to the Central Office and network type?
Cellular networks
What type of internet connection often uses local ground stations and may require external antennas for optimal performance?
Wireless Internet Service Providers (WISPs)
What type of internet connection allows for video, voice, and data communication using the same cable used for cable television?
Cable broadband
What type of internet connection operates in higher frequencies and requires line of sight?
Satellite connections
What is the primary advantage of fiber optic internet connections?
High bandwidth extension to homes and businesses
What type of network offers internet connections using local ground stations and is often used in rural areas or areas with limited infrastructure?
Wireless Internet Service Providers (WISPs)
What is the primary limitation of cellular networks for providing internet connectivity using tethering or hotspots?
Speeds limited by distance to the Central Office and network type
Study Notes
- Satellite internet connections can have latency from 250ms up to 40ms with Starlink, aiming for 20ms.
- Satellite connections operate in higher frequencies, like two gigahertz, and require line of sight. Rain can disrupt the connection due to rain fade.
- Fiber optic internet connections allow for high-speed communication over long distances but are expensive and require costly repairs.
- Fiber optics can now be extended to homes and businesses for improved bandwidth.
- Cable broadband uses the same cable for cable television to offer video, voice, and data communication.
- DOCSIS is the standard for sending data over cable networks, supporting very high speeds and enabling multiple streams of data.
- DSL uses existing telephone lines for high-speed internet connections, with asymmetric download and upload speeds.
- Cellular networks can provide internet connectivity using tethering or hotspots, with speeds limited by distance to the Central Office and network type.
- Wireless Internet Service Providers (WISPs) offer internet connections using local ground stations, often in rural areas or with limited infrastructure.
- WISPs can offer high-speed connections up to 1,000 megabits per second and may require external antennas for optimal performance.
Explore the various types of internet connections, including the increasingly common satellite networking, which involves using a satellite dish to communicate with a satellite in low Earth orbit. Learn about the non-terrestrial communication method and its implications.
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