A discovery runs against a Windows Server returning the following attribute values for the first time: name = WindowsSN1 serial_number = 12321 A subsequent discovery is ran against a different Windows Server returning the following attribute values: name = WindowsSN2 serial_number = 12321 With only base system CI Identifiers configured, which of the following is true?

The ServiceNow Identification and Reconciliation Engine (IRE) utilizes baseline CI Identifier rules to govern how Configuration Items are uniquely identified and updated. For the Hardware rule (which encompasses the Windows Server class), the system prioritizes hardware identifiers like Serial Number and MAC Address in its identification sequence over the hostname. When the first execution occurs, a new CI is successfully created with the name "WindowsSN1" and serial number "12321". During the subsequent discovery run on the second server, the IRE detects the exact same serial number ("12321"). Following the baseline priority rules, it correctly identifies this as a match to the preexisting CI. Consequently, the IRE updates the original Configuration Item, overwriting the old name with the newly discovered name, "WindowsSN2".

B: Baseline identifier rules match on the duplicate serial number, safely preventing the creation of a duplicate, distinct Windows Server CI. C: The serial number is successfully evaluated and stored during discovery. A duplicate record is prevented by the matching rules of the IRE. D: The CI's name is dynamically updated to the most recently discovered matching name (WindowsSN2); it is not preserved as WindowsSN1.

ServiceNow Product Documentation, Configuration Management Database (CMDB), Identification and Reconciliation: "CI Identification rules" and "Hardware Identification Rule" tables.

ServiceNow Product Documentation, IT Operations Management, Discovery: "Identifiers for Discovery."