200-301 · Question #153
Which command can you enter to allow Telnet to be supported in addition to SSH?
The correct answer is A. transport input telnet ssh. To enable both Telnet and SSH for inbound connections on a VTY line, the transport input telnet ssh command is used in line configuration mode.
Question
Options
- Atransport input telnet ssh
- Btransport input telnet
- Cno transport input telnet
- Dprivilege level 15
How the community answered
(18 responses)- A89% (16)
- C6% (1)
- D6% (1)
Why each option
To enable both Telnet and SSH for inbound connections on a VTY line, the `transport input telnet ssh` command is used in line configuration mode.
The `transport input telnet ssh` command, when configured on VTY lines, allows both Telnet and SSH protocols to be used for remote access, overriding the default behavior which typically only accepts SSH if specifically configured.
The `transport input telnet` command would enable Telnet but disable SSH, as it explicitly specifies Telnet as the *only* allowed input transport.
The `no transport input telnet` command would explicitly disable Telnet as an allowed transport protocol for VTY lines.
The `privilege level 15` command sets the user's privilege level but does not control the transport protocols allowed for remote access.
Concept tested: Configuring VTY line access protocols (Telnet/SSH)
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_usr_aaa/configuration/xe-3s/sec-usr-aaa-xe-3s-book/sec-config-user-auth.html#GUID-E5351FC1-E08F-44F4-98F6-3CF718B63283
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