Networking - Managing a Cisco Internetwork - Discussion

Discussion :: Managing a Cisco Internetwork - Managing a Cisco Internetwork (Q.No.3)


You are unsuccessful in telnetting into a remote device. What could the problem be?

  1. IP addresses are incorrect.
  2. Access control list is filtering Telnet.
  3. There is a defective serial cable.
  4. The VTY password is missing.

[A]. 1 only
[B]. 3 only
[C]. 2 and 4 only
[D]. All of the above

Answer: Option C


The best answers, the ones you need to remember, are that either an access control list is filtering the Telnet session or the VTY password is not set on the remote device.

Yogesh Singh said: (Sep 22, 2017)  
Virtual teletype (VTY) is a command line interface (CLI) created in a router and used to facilitate a connection to the daemon via Telnet, a network protocol used in local area networks. To connect to a VTY, users must present a valid password.

Manas said: (Apr 5, 2019)  
What about the incorrect IP address and defective serial cable sir? please tell me.

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