This question tests understanding of reconciliation source priority in the Identification and Reconciliation Engine (IRE) in ServiceNow.
In reconciliation rules, lower numeric values represent higher priority. Therefore, the priority order is:
ServiceNow (100) – highest authority
Altiris (200)
SCCM (300) – lowest authority
Why A is correct
Because Altiris (200) has higher priority than SCCM (300), data from Altiris can update records originally inserted by SCCM. This is exactly how reconciliation precedence works—higher-priority sources can overwrite lower-priority ones.
Why C is correct
SCCM, even though it has the lowest priority, is still an authorized discovery source. It can insert new records into the Windows Server table when no existing CI is identified. Priority only affects updates, not the ability to create records.
Why B is incorrect
ServiceNow (priority 100) can update records from Altiris and SCCM because it has the highest priority. The statement incorrectly claims it cannot.
Why D is incorrect
SCCM does not have the highest authority. A higher numeric value means lower priority, so SCCM cannot update records created by higher-priority sources.
