300-410 ENARSI: Implementing Cisco Enterprise Advanced Routing and ServicesDemo

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QuestionQ204

Infrastructure Security

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Refer to the exhibit. An administrator can log in to the device through Telnet, but attempts to access that same device through SSH using the same credentials fail. Which action resolves this problem?

  • A Configure the VTY lines with login local.
  • B Configure transport input all on the VTY lines to allow SSH.
  • C Configure SSH service on the router.
  • D Configure to use the Telnet user database for SSH as well.
Explanation

SSH is already reachable and running because the connection reaches port 22 and receives password prompts. The failure is authentication-related: Telnet can use a VTY line password, while SSH should authenticate a named local user. Configuring the VTY lines with login local makes them use the local username database (which must contain the applicable user credentials).

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