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Very-High-Data-Rate Digital Subscriber Line (VDSL)

Table of Contents:
Definition and Overview
1. Introduction
2. Full-Service Broadband Network
3. FSAN
4. Technology Standards
5. VDSL Access Technology
6. VDSL–Based Service Sets
7. Deployment Scenarios
8. Summary and Conclusion
Self-Test
Glossary
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Self-Test
1. ADSL is able to deliver full Internet access service, including video.
a. true
b. false
2. The most promising technology capable of delivering full service is __________.
a. HDSL
b. ADSL
c. VDSL
d. DSL
3. At present, service providers are able to deliver all three basic service types or communications classifications (voice, data, and video).
a. true
b. false
4. FSAN membership is open to all telco operators.
a. true
b. false
5. Which of the following statements about VDSL is not true?
a. VDSL is both symmetric and asymmetric
b. VDSL has a longer range in the loop
c. VDSL is nearly ten times faster than ADSL
d. VDSL is over thirty times faster than HDSL
6. Delivery of asymmetric broadband services requires the bandwidth of the downstream channel to be __________ the bandwidth of the upstream channel.
a. higher than
b. lower than
c. equal to
7. ADSL is an Internet-only technology.
a. true
b. false
8. The combination of VDSL and ___________ delivers the Internet services of today in an architecturethat is capable of supporting tomorrow's applications.
a. X.25 packet switching
b. frame relay
c. Internet protocol
d. ATM
9. VDSL is only appropriate for ___________.
a. FTTEx
b. FTTN
c. FTTB
d. FTTCab
10. VDSL provides 52 Mbps of bandwidth over a single twisted-pair copper loop.
a. true
b. false
Glossary >>

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