Which command is used to successfully SSH into a Cisco ARC or switch CLI using a remote authentication server?

Question

Options

• Aapic#rad_check//[email protected]
• Bssh apic#rad_check\[email protected]
• Cssh apic#rad_check//[email protected]
• Dssh apic@rad_check\[email protected]

• A
  3% (1)
• B
  6% (2)
• C
  88% (29)
• D
  3% (1)

Explanation

Option C uses the correct syntax for SSH authentication through a remote RADIUS server on Cisco APIC: the ssh command is required, the # separates the device from the authentication realm (rad_check), and the double forward slash // is the proper Cisco ACI delimiter between the realm and the username before the @IP address.

Option A is wrong because it omits the ssh command entirely - without it, the shell has no instruction to initiate a connection.

Option B uses double backslashes \\ instead of double forward slashes //; Cisco ACI requires forward slashes as the realm/username delimiter, so this will fail to authenticate correctly.

Option D misplaces the @ symbol (putting it between apic and rad_check instead of before the IP) and also uses backslashes \\, breaking both the realm specification and the delimiter syntax.

Memory tip: Think of // like a URL path - web addresses use forward slashes (http://), and Cisco ACI borrows the same convention to "point to" the remote auth realm. If you remember "SSH uses URL-style slashes," you'll always pick forward over back.

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