單項(xiàng)選擇題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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A.SSID
B.RTS/CTS
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4.單項(xiàng)選擇題Which PPP subprotocol negotiates authentication options?()

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5.多項(xiàng)選擇題Which two of these statements are true of IPv6 address representation? ()

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B.A single interface may be assigned multiple IPv6 addresses of any type.
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D.The first 64 bits represent the dynamically created interface ID.
E.Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.

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