No more snmpget after enabling agentx

Hello For a program that I'm using I had to enabled "master agentx" in my snmpd.conf. But after that I can't do snmpget anymore against this system. Is this normal and is there a way to keep using both?? Version: NET-SNMP version: 5.2.3 ---

SNMP on a multiple cpu system

This is a smp system (debian) with a 2.6 kernel. The machine has 2 cpu and has dual core, so 4 cpu in total. Are the above MIB for the total of cpu's or only for cpu0? And how can I monitor the cpu's individual? tha