Remember is can be stuffed under all sorts of topics like admin, reporting, logging, management, troubleshooting, etc
And Version 3 can make it a generic "Security" topic
I just took a peek at the 642-532 blueprint.... and the snmp tasks listed weren't all that complex or complicated.
Then I noticed the size of the task lists in the 532 version vs the updated 533 exam -- someone did get carried away on specifying tasks for the older version of the exam.
If you can spell snmp and configure the sensor to support snmp, you probably know enough