unregister scalar?

[Skiba, B. <ws...@ha...>]

Is netsnmp_unregister_handler() the correct API to un-do the effect of a previous call to netsnmp_register_scalar() ?
That is, if I used netsnmp_create_handler_registration() followed by netsnmp_register_scalar() to register a single OID, will netsnmp_unregister_handler() remove the registration for only that OID, and no other, as well as deallocate all other resources that Net-SNMP may have internally allocated?

If so, then after unregistering it, can my code subsequently re-register it by simply repeating the original registration sequence (netsnmp_create_handler_registration(), followed by netsnmp_register_scalar() )?