Answers to the review questions can be found in Appendix A, "Answers to Review Questions."
| 1: | What are the signals on the physical layer provided by DTE? |
| 2: | What are the two available options for 56-kbps configurations for Cisco routers? |
| 3: | In the command service-module 56k network-type dds, what is DDS and what are the data rates provided by DDS? |
| 4: | Serial 1 is configured with the command service-module t1 timeslots 1-2. What is the configured bandwidth on Serial 1? |
| 5: | Name the WIC T1 Pinouts (8 pin RJ48S). |
| 6: | What is the command to loopback your equipment? |
| 7: | Name two checkpoints for a failing CSU. |
| 8: | In the show frame-relay map IOS command, if the DLCI is defined and active, what does this mean? |
| 9: | What happens with the incoming DLCI in the switch? |
| 10: | How do you know if the DLCI is active but not configured in the router? |
| 11: | Under what conditions does the properly configured LMI in a Cisco router not send packets over the DLCI? |
| 12: | Which LMI message reports the PVC status for each PVC configured on the interface? |
| 13: | What is the order of the Cisco LMI autosense full status enquiry message? |
| 14: | How are "Num Status Enq. Sent," "Num Status msgs Rcvd," and "Num Status Timeouts" related in erroneous conditions? |
| 15: | When debugging the serial interface, what does the message "illegal serial line type xxx" mean? |