With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDnsQueryAuthAnswers
Cisco Dns Query Authentication Answers
1.3.6.1.4.1.9.9.405.1.2.1
Number of queries which were authoritatively answered.
Back to CISCO-DNS-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor cDnsQueryAuthAnswers on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.