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CCNASecurity & access control

Quick CCNA Quiz: Do you know your 802.1X roles?

Test your Cisco CCNA network access security knowledge with this daily drill. Drop your answer in the comments below!

The question

In an 802.1X network architecture, which device acts as the Authenticator?
  • AThe end-user client device
  • BThe access layer switch or WLCcorrect
  • CThe central RADIUS server

The answer

B The access layer switch or WLC

The switch or WLC acts as the authenticator, relaying EAP messages between the supplicant and the RADIUS server. Don't confuse the authenticator with the authentication server. Follow for tomorrow's rep.

Exam tip

Read what the question is actually asking before looking at the options. The wrong answers here are ones candidates genuinely pick — each is true of something adjacent, just not of what was asked.