curriculum/challenges/english/blocks/lecture-understanding-computer-internet-and-tooling-basics/672ab83c4297910eade53c2e.md
First, what is an internet service provider, or ISP? It’s a company that sells access to the global internet network, essentially. And they come in three different tiers.
The first tier are the giant conglomerate companies, which have the infrastructure to handle most (if not all) of their network traffic independently.
The second tier are the country-wide providers, which sometimes rent access to tier 1 networks but can stand fairly well on their own.
The third tier are the small companies that primarily focus on providing internet to local markets, and rely on larger ISPs to provide their infrastructure.
These providers will offer different types of connections as well.
Fibre optic connections rely on glass or plastic fibres to transmit data via light, resulting in very high connection speeds and data exchange.
Cable connections use the same infrastructure as a cable television provider, which often makes them readily available in many regions.
DSL connections use the infrastructure that landline phone services use. Because of the prevalence of this infrastructure, DSL is available in areas where cable might not be. But it is also frequently a slower option.
Dial-up also uses the phone lines, but requires exclusive connection (disabling the use of the line for phone purposes when connected to the internet). This is a much older technology that has fallen into disuse.
Satellite connections use an array of satellites orbiting the earth to connect various devices across the world. And finally, similar to that, a 5G home internet provider uses the cell tower infrastructure to keep you online.
And that should give you a basic rundown of what types of internet service providers and internet connections are out there!
Which of the following is NOT a tier of Internet Service Provider (ISP)?
Giant conglomerate companies with independent infrastructure.
Oversight organizations may regulate ISPs, but are rarely ISPs themselves.
Country-wide providers that may rent access to larger networks.
Oversight organizations may regulate ISPs, but are rarely ISPs themselves.
Small companies focusing on local markets.
Oversight organizations may regulate ISPs, but are rarely ISPs themselves.
International organizations overseeing global internet access.
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Which type of internet connection uses glass or plastic fibres to transmit data via light?
Cable connection.
This connection type is known for its very high speeds due to its unique transmission method.
DSL connection.
This connection type is known for its very high speeds due to its unique transmission method.
Fibre optic connection.
Satellite connection.
This connection type is known for its very high speeds due to its unique transmission method.
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What is a characteristic of dial-up internet connections?
They use the same infrastructure as cable television.
The last part of the lesson mentions that this older technology disables the use of the phone line for other purposes when connected to the internet.
They require exclusive use of the phone line when connected.
They use an array of satellites orbiting the earth.
The last part of the lesson mentions that this older technology disables the use of the phone line for other purposes when connected to the internet.
They are the fastest type of internet connection available.
The last part of the lesson mentions that this older technology disables the use of the phone line for other purposes when connected to the internet.
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