Q3. Ram is an administrator of a Corporate network. He is configuring Corporate Access Servers for dial-in users. He wants to allow the dial-in users to choose PPP or SLIP interactively. Which command needs to be given first to allow this functionality?
A. Router(config-if)# async mode dedicated
B. Router(config)# async mode interactive
C. Router(config)#autoselect ppp
D. Router(config)# async dynamic address
Correct Answer: B
Explanation:
Async interfaces on Access Servers can be configured in one of two modes:
1. Dedicated - In this mode, an interface is automatically configured for SLIP or PPP. The end user cannot change the encapsulation method, address, etc. basically there will be no user prompt or EXEC level.
The command used for this is:
Router(config-if)# async mode dedicated
2. Interactive - In this mode, the user prompt or EXEC level are available to the dial-in user. Therefore, the dial-in user can select whether to run SLIP, PPP, or Telnet etc. interactively.
The command 'autoselect' is used to autosense between arap, ppp, or slip. This command needs to be given only after the command async mode interactive is given. If you try to give 'autoselect' command without first issuing 'async mode interactive', you will get an error message.
Finally, the command
Router(config-if)# async dynamic address - is used to allow the remote dial-in client to enter its own IP address.
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