2.7 - Internet Connection Types Flashcards
What is satellite networking?
Satellite networking is a form of internet connectivity that uses a satellite dish to communicate with a satellite in low Earth orbit.
What is the primary challenge of satellite internet?
The primary challenge of satellite internet is latency, with delays of around 250 milliseconds each way due to the distance between the Earth and the satellite.
What is Starlink?
Starlink is a newer satellite technology that offers reduced latency, with advertised times as low as 40 milliseconds, and aims to reach 20 milliseconds.
What is rain fade in satellite communications?
Rain fade occurs when rain clouds interfere with the line-of-sight communication between the satellite dish and the satellite, leading to a loss of connection.
What is fiber optic internet?
Fiber optic internet uses fiber optic cables to transmit large amounts of data over long distances at high speeds.
What are the benefits of fiber optics?
Fiber optics allow for high-speed data transmission, long-distance communication, and improved bandwidth, making it ideal for both enterprise networks and home connections.
What is cable broadband?
Cable broadband is an internet connection that uses the same coaxial cable as cable television, allowing for video, voice, and data to be transmitted over the same medium.
What is DOCSIS?
DOCSIS (Data Over Cable Service Interface Specification) is the standard for transmitting data over cable networks, supporting speeds of 1 gigabit or higher.
What is DSL?
DSL (Digital Subscriber Line) is a high-speed internet connection that uses existing telephone lines, with ADSL being the most common form where download speeds are faster than upload speeds.
What limits DSL speeds?
DSL speeds are limited by the distance from the Central Office (CO), with a maximum effective range of about 10,000 feet.
What is cellular internet connectivity?
Cellular internet connectivity uses mobile networks for data communication, often through tethering or by using a phone as a hotspot.
What is tethering?
Tethering is the process of connecting a device to a phone via USB or Bluetooth to use the phone’s internet connection.
What is a WISP?
A WISP (Wireless Internet Service Provider) provides internet connectivity through wireless connections to local ground stations, often in rural areas.
What is required for a WISP connection?
A WISP connection typically requires an external or outdoor antenna to send and receive data from the wireless network.
What speeds can WISP networks offer?
WISP networks can offer performance of up to 1,000 megabits per second in some areas.
