Cisco Octal-Port DMT ATU-C Line Card Manual do Utilizador descarregar pdf (Página 49)

224 Chapter 8: Using DSL to Access a Central Site

Review Questions

1 Which of the following modulation methods is not used for ADSL technology?

A. CAP

B. 2B1Q

C. DMT-2

D. G.lite

2 RFC 1483 when implemented is __________.

A. Bridged

B. Routed

C. Decrypted

D. Encrypted

3 PPPoA when implemented is __________.

A. Bridged

B. Routed

C. Decrypted

D. Encrypted

4 Which of the following interferences degrades DSL services?

A. Impedance changes

B. Bridged taps

C. Crosstalk

D. Impulse hits

E. All of the above

show dsl status Displays the status of the DSL subscriber ports

on a chassis.

show dsl interface atm slot/port Shows the status of a DSL port.

show spanning-tree bridge-group Displays information on which Spanning Tree

Protocol is running.

show arp Displays the entries in the ARP table.

show bridge group [verbose] Displays the status of each bridge group in detail.

Table 8-3 Summary of Commands Used in This Chapter (Continued)

Command Description

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Cisco Octal-Port DMT ATU-C Line Card Manual do Utilizador Página 49