Which switchport port-security violation mode increments the violation counter and sends an SNMP trap?

The restrict violation mode increments the violation counter, sends an SNMP trap, and generates a syslog message, but it does not disable the port. This allows the port to continue forwarding traffic while alerting administrators to the security breach. protect drops unauthorized frames but does not increment the violation counter, send an SNMP trap, or generate a syslog message, making it less visible. shutdown disables the port immediately upon a violation, increments the counter, sends an SNMP trap, and generates a syslog message, requiring manual intervention to re-enable. access is not a valid port-security violation mode.