What are likely causes?

An SNMP probe is sent from ClearPass to a network access device, but ClearPass is unable to obtain profiling information.

What are likely causes? (Select three.)
A . Only SNMP read has been configured but SNMP write is needed for profiling information.
B . An external firewall is blocking SNMP traffic.
C . SNMP is not enabled on the NA
E . SNMP community string in the ClearPass and NAD configuration is mismatched.
F . SNMP probing is not supported between ClearPass and NADs.

Answer: BCD

Explanation:

Verify firewall port 162 (default) is open between AMP and the controller.

SNMP must be enabled on the NAD.

The community string that ClearPass is using to access the NAD might be wrong.

References: https://community.arubanetworks.com/t5/Monitoring-Management-Location/SNMP-GetFailed-quot-error-message/ta-p/169774