InServiceNow,Eventsplay a crucial role in theevent-driven architecture, allowing the system to respond dynamically to actions such as record updates, system notifications, and integrations.

There aretwo key componentsinvolved in event handling:

Event Registry

A table thatstores event definitions(i.e., predefined event names).

Defines which events can be triggered in the system.

Events in the registry arenot actual occurrences, but ratherpossible eventsthat can be triggered.

Located in thesys_event_registrytable.

Event Log

A log ofactual generated eventsthat have occurred in the system.

Whenever an event is triggered (e.g., record update, scheduled job, or integration), it gets recorded in theEvent Log.

Helps administrators track and troubleshoot event execution.

Stored in thesys_eventtable.

Why is Option A Correct?"Event Log contains generated Events, the Event Registry is a table of Event definitions."

Event Registry = Defines possible events that can be triggered.

Event Log = Records actual events that have been triggered.

Why Are the Other Options Incorrect?B. "Event Log is formatted in the Log style, the Event Registry displays different fields."

Misleading: While the log and registry have different layouts, the key difference isevent occurrences vs. event definitions, not just formatting.

C. "Event Log lists Events that were triggered by integrations, the Event Registry lists the Events that were triggered during the day (24-hour period)."

Incorrect:The Event Log tracks all triggered events, not just integrations.

TheEvent Registry does not track daily events, it just defines them.

D. "Event Log is the same as the Event Registry."

Completely incorrect:The Event Logrecords actual event occurrences, while the Event Registrydefines possible eventsin the system.

Reference from Certified System Administrator (CSA) Documentation:????ServiceNow Docs – Events and Event Processing

????ServiceNow Event Management Documentation

"TheEvent Registry (sys_event_registry)contains event definitions that specify when an event can be generated. TheEvent Log (sys_event)records events that have actually occurred."

Conclusion:The correct answer isA. Event Log contains generated Events, the Event Registry is a table of Event definitions.

????Understanding the difference between the Event Log and Event Registry is crucial for troubleshooting, automation, and event-driven processing in ServiceNow.