Refer to the exhibit. A network administrator is validating client connectivity and executes the show command shown in the exhibit. Which authentication method was used by the wireless station?

Question

Exhibit

Options

• AMAC authentication
• B802.1X user authentication
• CWEBauth authentication
• D802.1X machine authentication

• A
  8% (4)
• B
  87% (46)
• C
  4% (2)
• D
  2% (1)

Explanation

802.1X user authentication is correct because the show command output (typically from a Cisco WLC) displays a user identity - a plain username credential supplied by the end user via an EAP method like PEAP or EAP-TLS with a user certificate. This identity format is the telltale sign that the supplicant authenticated as a person, not as a device.

Why the distractors are wrong:

• A (MAC authentication): MAC auth uses the client's hardware address as both username and password; the output would reference a MAC-formatted identity, not a user credential.
• C (WEBauth): Web authentication redirects unauthenticated clients to a captive portal page; the policy type would appear as webauth, not 802.1X.
• D (802.1X machine authentication): Machine auth authenticates the computer using its machine certificate before a user logs in; the identity in the output would appear in the format host/computername.domain.com, distinguishing it from a user identity.

Memory tip: Think of the identity string as your clue - host/ prefix means machine (both start with something non-human), while a bare username means user. Machine = before login, User = after login.

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