Event Management Overview
About 13% of the CIS-EM exam — see all 5 domains.
This domain sets positioning and vocabulary.
What Event Management is and where it fits
Event Management is part of ITOM (IT Operations Management), ServiceNow's suite for managing infrastructure and services. ITOM's pillars include Discovery and Service Mapping (populate and relate the CMDB), Event Management (turn monitoring noise into actionable alerts), Operational Intelligence / Metric Intelligence (anomaly detection on metrics), Health Log Analytics (anomaly detection on logs), and Cloud/Service operations. Together with machine learning these form ServiceNow's AIOps story.
The customer problem Event Management solves: enterprises run many monitoring tools (SCOM, SolarWinds, Nagios, Zabbix, cloud-native monitors), each generating its own alerts in its own silo. There is no single, prioritized, service-aware view. Event Management consolidates events from all of these into one place, deduplicates and correlates them, binds them to the CMDB, and computes business impact, so operators act on what matters.
Core value concepts
- Noise reduction: many events to few alerts, via message keys, thresholds, correlation, and aggregation.
- Service awareness: alerts bound to CIs and rolled up to the services they support, so impact is visible.
- Proactivity: Operational Intelligence and Health Log Analytics surface anomalies before a hard threshold breach or outage.
- Closed-loop remediation: from alert to automated fix via Flow Designer subflows.
- CSDM alignment: Event Management relies on a CMDB structured per the Common Service Data Model so that service impact and reporting are meaningful.
Dashboards and visibility
Operators and managers consume Event Management through Service Operations Workspace, alert consoles, application service maps (showing active alerts on CIs and their relationships), and dashboards/Performance Analytics for trends. The dashboards answer "what is broken, what does it affect, and is it getting better."
Sample questions from this domain
Three of the 39 in this domain, with the reasoning. The full set is in the question bank.
Which ServiceNow capability is primarily responsible for ingesting raw monitoring events, de-duplicating and correlating them, and generating actionable alerts?
- A. Service Mapping
- B. Orchestration
- C. Event Management ✓
- D. Horizontal Discovery
Why: Event Management is purpose-built to ingest raw events (em_event), de-duplicate them, correlate related events, and create alerts (em_alert). Service Mapping builds service topologies but does not process events. Horizontal Discovery probes devices to populate the CMDB with CIs. Orchestration supplies automated workflows (for example, remediation actions that Event Management can launch) rather than receiving and correlating events.
In Event Management, what is the primary purpose of CI binding, which links the alert that results from an event to a configuration item (CI)?
- A. To generate the alert's message key from the CI name rather than from the event's source fields
- B. To create a new CI in the CMDB whenever the event's node does not match an existing CI
- C. To set the alert's severity from the CI's business criticality instead of from the event
- D. To associate the resulting alert with a CI so impact and service health can be calculated ✓
Why: Event rules are defined on events, but the CI is bound to the alert that results from those events, not to the event itself. Binding ties the alert to a CMDB CI so impact on the services that CI supports, and service health, can be calculated. Binding does not create CIs (when no CI matches, the alert stays unbound and integrations tell you to create the CI manually), it does not produce the message key (the default key comes from source, node, type, resource, and metric name), and alert severity is copied from the latest event rather than from CI criticality.
Which table stores raw monitoring events that have been received by ServiceNow Event Management before they are processed into alerts?
- A. em_alert
- B. sysevent
- C. em_event ✓
- D. cmdb_ci
Why: Raw events from monitoring sources are stored in the Event [em_event] table, which uses table rotation by default. em_alert holds the alerts generated from those events. sysevent is the platform's general event queue (for example, login and notification events), not the Event Management event table. cmdb_ci is the base CMDB configuration item table that alerts are bound to.