1 High-speed Internet Access
1.1 High-speed Internet Access
1. What transmission medium is typical for core part of telecommunication network?
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2. What is theconventional topology of backbone telecommunication networks?
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3. What transmission medium is typical for access part of telecommunication network?
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4. What is theconventional topology of access telecommunication networks?
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5. What technology is basis for a hybrid concept of access networks?
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6. Which xDSL technologies are used in hybrid access networks?
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7. Is it possible to change the transfer rate at VDSL2 connections during their operation?
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8. What is the maximum usable bandwidth of VDSL2 connections?
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9. Explain the term "interleaving".
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10. What is the disadvantage of the interleaving process?
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11. Which type of component is used for implementing scrambling and descrambling operations?
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12. What type of modulation is used by VDSL2 connections?
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13. Which method can be only used at VDSL2 to create bidirectional communication?
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14. Rotation method of upstreams and downstrems and width of each frequency subbands is determined by:
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15. Standard G.fast is denoted as:
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16. Which concept of hybrid access network is typical for standard G.fast?
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17. How are cancelled the FEXT crosstalks at G.fast connections?
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18. Which access method is used at G.fast connections?
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19. What is the theoretical maximum transfer rate of G.fast connections?
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20. What is the disadvantage of DMT modulation?
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