Home Access Networks Overview

Play an AI-generated podcast conversation about this lesson

Which technology is commonly used by residences to access the Internet?

Dial-Up

Satellite

Fiber optics

DSL (correct)

Where is a DSL modem typically located in relation to the telephone line?

At the residence (correct)

On the street

At the ISP's headquarters

At the central office (CO)

What does DSLAM stand for in the context of home Internet access?

Digital Subscriber Line Access Multiplexer (correct)

Digital Subscriber Line Access Modem

Data System Link Analysis Model

Digital Signal Line Adapter Module

Why is DSL often provided by the local telephone company to residences?

Due to the existing telephone line infrastructure Signup and view all the answers

What is the purpose of a splitter in a DSL setup?

To separate the data and telephone signals Signup and view all the answers

In DSL Internet access, why are downstream and upstream transmission rates different?

Due to the distance between the home and the CO Signup and view all the answers

What is a characteristic feature of hybrid fiber coax (HFC) systems for cable Internet access?

They involve fiber optics and coaxial cables Signup and view all the answers

Why must residences located far from the CO consider alternative forms of Internet access instead of DSL?

Because of limitations in DSL's operational distance Signup and view all the answers

What is the purpose of a DSLAM in a DSL network infrastructure?

To separate data and phone signals Signup and view all the answers

How do DSL standards contribute to internet access limitations for residences?

By varying transmission rates based on location Signup and view all the answers

What is the main reason why residences typically obtain DSL Internet access from the same local telephone company?

To have a single point of contact for both phone and internet services Signup and view all the answers

Why does a DSL modem translate digital data into high-frequency tones for transmission over telephone wires to the CO?

To ensure compatibility with existing telephone infrastructure Signup and view all the answers

In the context of broadband residential access, what role does the DSLAM play in the network infrastructure?

It serves as a point of connection between multiple homes and the telco's CO Signup and view all the answers

Why do Korea, Netherlands, Finland, and Sweden lead in Internet access with more than 80% of households having high-speed broadband?

Because they have extensive fiber optic networks in place Signup and view all the answers

What distinguishes DSL from cable Internet access in terms of service provider usually being the ISP?

Cable Internet is typically provided by cable TV companies, not telcos Signup and view all the answers

Why is it common for residences located far from the Central Office (CO) to resort to alternative forms of Internet access instead of DSL?

DSL standards do not support long distances between the home and the CO. Signup and view all the answers

In a DSL setup, what factor significantly influences the maximum transmission rate a residence can achieve?

Distance between the home and the Central Office (CO) Signup and view all the answers

What feature contributes to the term 'asymmetric' when describing DSL Internet access?

Different downstream and upstream transmission rates Signup and view all the answers

Why do hundreds or even thousands of households connect to a single DSLAM in a residential area?

To save costs on infrastructure development Signup and view all the answers

What distinguishes cable Internet access from DSL in terms of infrastructure utilization?

Cable Internet uses existing cable television infrastructure, while DSL utilizes telephone infrastructure. Signup and view all the answers