1: | List three ways for using dial as a backup solution. |
A1: | Using a backup interface, using a floating static route, and using a dialer watch. |
2: | What is the main advantage of the dialer watch solution? |
A2: | The router dials immediately when the primary route is lost. It does not depend on line protocol, encapsulation, or interesting traffic. |
3: | What is the line configuration command to configure a modem to use the modemcap usr_sportster? |
A3: | Router(config-line)# modem autoconfigure type usr_sportster |
4: | What is the global configuration command to define a group named dial as a TACACS+ group ? |
A4: | Router(config)# aaa group server tacacs+ dial |
5: | What is the default protocol and port number of RADIUS authentication and accounting? |
A5: | UDP 1645 and UDP 1646. |
6: | What is the line configuration command to automatically select the PPP protocol during text authentication? |
A6: | Router(config-line)# autoselect ppp |
7: | What is NFAS and what is its function? |
A7: | Non-Facility Associated Signaling (NFAS) allows a single D channel to control multiple PRI circuits. |
8: | What is the interface configuration command to ensure that voice calls are sent to a modem? |
A8: | Router(config-if)# isdn incoming-voice modem |
9: | What is the purpose of the command no exec ? |
A9: | It prevents a person from obtaining a login prompt when they connect to a line on which it is configured. |
10: | What is the best way to test a backup solution? |
A10: | Physically unplug the cable from the main interface. |
11: | How would you connect to a network access server to connect as a text dial-out device? |
A11: | Telnet or Secure Shell (if enabled). |
12: | True or False: PC software is required to use a router to perform PPP dial-out. |
A12: | False. PC software is only required to attach a network modem to a virtual communications port for dial-out. |
13: | What is the most scaleable way to use large-scale dial-out? |
A13: | Store the client information and phone numbers on an AAA server. |
14: | What is the main purpose of a group-async interface? |
A14: | It allows you to consolidate many async interfaces into a group for ease of configuration. |
15: | What does the interface command group-range do? |
A15: | It specifies which lines are part of the group-async interface. |