# 300-320 — Question 425

**Type:** multiple_response
**Topics:** topic_1

## Question

Which three authentication services are supported by Cisco NAC Appliance? (Choose three.)

## Correct Answer

_See scenario._

## Explanation

Q. What forms of authentication are supported by the Cisco NAC Appliance?
A. All major forms of authentication are supported, including RADIUS, Lightweight Directory Access Protocol (LDAP), Kerberos, and Windows NT. Since the Cisco NAC Appliance works as an authentication proxy, there is no need to synchronize or replicate an authentication database.

https://www.cisco.com/c/en/us/products/collateral/security/nac-appliance-clean-access/prod_qas0900aecd802da200.html

**Reference:** examtopics_top_comment

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Source: https://hiexam.net/q/cisco/300-320/425  
Practice (tracked): https://hiexam.net/study/300-320/practice