Internet Connection Types

Why is satellite networking often used for remote or difficult-to-reach locations despite its disadvantages?

Because it can provide Internet connectivity where terrestrial networks (such as cable or fiber) are unavailable or difficult to deploy.

What are two common drawbacks of satellite networking compared to terrestrial networking?

Satellite networking is typically more expensive and has higher latency than terrestrial networking.

What factors can negatively affect a satellite network connection?

Satellite connections can be affected by line-of-sight obstructions and weather conditions, such as rain fade.

What type of signals does fiber-optic communication use to transmit data?

Fiber uses frequencies of light to transmit data at high speeds.

What are some advantages and disadvantages of fiber compared to copper cabling?

Fiber supports higher speeds and can communicate over longer distances, but it has higher installation costs, more expensive equipment, and is more difficult to repair.

Why is fiber commonly used in WAN cores and increasingly at homes and businesses?

Fiber supports very high data rates and long-distance communication, making it ideal for WAN backbones as well as business and residential Internet connections.

What does broadband mean in a cable network?

Broadband allows data to be transmitted over multiple frequencies at the same time, supporting different types of traffic.

What standard is used to carry data over a cable TV network?

DOCSIS (Data Over Cable Service Interface Specification)

What does ADSL stand for, and what type of existing infrastructure does it use?

Asymmetric Digital Subscriber Line and uses existing telephone lines to provide Internet access.

Why is ADSL called "asymmetric"?

download speed is faster than the upload speed. For example, speeds of 200 Mbit/s downstream and 20 Mbit/s upstream are common.

How does distance from the central office (CO) affect ADSL performance?

ADSL performance decreases as distance from the central office (CO) increases. The typical limit is about 10,000 feet, and users closer to the CO may achieve faster speeds.

What does WISP stand for?

Wireless Internet Service Provider

What is WISP useful for?

connecting rural or remote locations

What type of deployment technologies does WISP use?

• Meshed 802.11

• 5G home network

• Proprietary wireless

What do you need for a WISP network?

An outdoor antenna

Which technology typically has the lowest latency?

fiber

Which technology is most likely to be used in a remote rural area?

Satellite

Which technology uses telephone lines?

DSL

Which technology uses light signals?

fiber

Which technology uses DOCSIS?

cable

Which technology's performance degrades as distance from the provider increases?

DSL