Internet Connections Flashcards
What is the maximum speed for Dial-Up connections?
53.3 Kbps, limited by bandwidth on T1 channels.
What is ISDN used for and what speeds does it offer?
ISDN provides digital voice, data, and video over phone lines, offering speeds up to 1.544 Mbps.
What is ADSL, and how does it prioritize speed?
ADSL (Asymmetric DSL) prioritizes download speed (up to 8 Mbps) over upload speed (up to 1.5 Mbps).
How does distance from the DSLAM affect DSL speeds?
Speed decreases as the distance from the DSLAM increases; ADSL supports up to 18,000 feet, while VDSL is limited to about 4,000 feet.
What is HFC in relation to cable modems?
Hybrid Fiber-Coaxial (HFC) is the network that cable modems use, combining fiber and coaxial cables for fast internet.
What does DOCSIS stand for, and why is it important for cable modems?
DOCSIS (Data-Over-Cable Service Interface Specification) governs the standards and frequency usage for cable modems.
What is FTTP, and what equipment does it require?
FTTP delivers fiber directly to the building and uses an Optical Network Terminal (ONT) to convert signals to electrical ones for the router.
How does FTTP differ from FTTC in terms of speed and infrastructure?
FTTP offers higher speeds by using fiber directly to the building, while FTTC uses fiber to the curb and copper for the last connection.
What equipment is required for FTTC and FTTP?
FTTC requires a modem for signal conversion, while FTTP uses an ONT to convert optical signals.
What is the key difference between FTTC and FTTP in terms of fiber delivery?
FTTC delivers fiber to a neighborhood pedestal, while FTTP delivers fiber directly to the premises for better speeds.
How do cable modems compare to DSL in terms of speed and availability?
Cable modems offer faster speeds and are more widely available than DSL, especially in urban areas.
What is the role of the ONT in fiber optic connections?
The ONT converts fiber optic signals into electrical signals that connect to the router for internet use.
