[单选] A system administrator installed a new switch using a script to configure it. IP connectivity was tested using pings to SwitchB.Later attempts to access NewSwitch using Telnet from SwitchA faileD.Which statement is true?（）

A . Executing password recovery is required.
B . The virtual terminal lines are misconfigured.
C . Use Telnet to connect to RouterA and then to NewSwitch to correct the error.
D . Power cycle of NewSwitch will return it to a default configuration.

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[单选] A system administrator installed a new switch using a script to configure it. IP connectivity was tested using pings to SwitchB.Later attempts to access NewSwitch using Telnet from SwitchA faileD.Which statement is true?（）

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