CIS-ITSM CMDB — Timed 15 Questions

Question 1

An administrator creates a custom identification rule for a new class. The rule has two entries: Entry 1 uses 'serial_number' (weight 100), and Entry 2 uses 'mac_address' (weight 50). When a payload arrives containing both attributes, how does the IRE evaluate the rule entries?

15 minute time limit — choose an answer to begin.

Accepted Answer

The IRE evaluates Entry 1 first. If a match is found, it uses that CI; if no match is found, it proceeds to evaluate Entry 2.. IRE evaluates identification rule entries in order of their priority or weight, or matches using the first matching entry based on configuration criteria.

Answer

The IRE averages the weights and creates a new CI if the combined score is below 75.

Answer

The IRE rejects the payload because conflicting matching criteria are defined within the same rule.

Question 2

A business service map displays a critical application server as disconnected from its underlying database. Upon investigation, the database CI was updated with a new IP address, breaking the relationship. Which ServiceNow feature helps automatically maintain relationships when attributes change?

Accepted Answer

Identification and Reconciliation Engine relationship processing via Discovery patterns. Service Mapping and Discovery rely on IRE and pattern synchronization, but relationship maintenance is often preserved through automated discovery or reference qualifier linkage. When considering CMDB core mechanisms, IRE handles updates, and relationship rules or dynamic CI groups maintain groupings.

Answer

Dependency View Auto-Heal Business Rule

Answer

Dynamic CI Group query rules

Answer

CMDB Data Manager relationship synchronizer

Question 3

Which TWO of the following are core components evaluated by the CMDB Health Dashboard? (Choose two.)

Accepted Answer

Completeness. CMDB Health consists of three pillars: Completeness, Correctness, and Compliance.

Answer

Security

Answer

Availability

Answer

Performance

Question 4

Which TWO of the following tables are standard base or parent tables in the CMDB hierarchy? (Choose two.)

Accepted Answer

cmdb_rel_ci. cmdb and cmdb_ci are foundational parent tables for all configuration items and related metadata in ServiceNow.

Answer

sys_user

Answer

incident

Answer

ast_contract

Question 5

An administrator needs to evaluate the overall health of the CMDB, specifically measuring the percentage of CIs that have not been updated or verified within the last 90 days. Which CMDB Health metric addresses this?

Accepted Answer

Staleness (Compliance metric). CMDB Health consists of Completeness, Correctness, and Compliance. Compliance measures metrics such as audits and freshness/staleness based on last update times.

Answer

Orphans (Correctness metric)

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Audit (Completeness metric)

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Duplicate CIs (Correctness metric)

Question 6

A technician wants to view the graphical relationship hierarchy of a Business Service and its underlying servers. Which feature should they open from a CI record?

Accepted Answer

Dependency View. Dependency Views provide a graphical map of CIs and their relationships, allowing technicians to inspect upstream and downstream impacts.

Answer

Relationship Builder

Answer

CMDB Dashboard

Answer

CI Class Manager

Question 7

An organization requires that network gear attributes can only be updated by the Network Discovery data source, while server attributes can be updated by both Discovery and a manual import set. Where must this restriction be configured?

Accepted Answer

Reconciliation Definitions. Reconciliation definitions in the IRE determine which data sources are authorized to write to specific CI attributes, preventing lower-priority sources from overwriting authoritative data.

Answer

Access Control Lists (ACLs)

Answer

CI Class Manager Identification Rules

Answer

Data Source Precedence Rules

Question 8

A custom integration script is inserting records directly into the cmdb_ci_server table without invoking the Identification and Reconciliation Engine (IRE). What is the primary risk of this approach?

Accepted Answer

It bypasses identification rules and reconciliation rules, risking data duplication and unauthorized overwrites.. Bypassing the IRE means duplicate CIs can be created, and reconciliation rules governing attribute updates will not be enforced, compromising data integrity.

Answer

It causes ServiceNow to automatically reject all incoming records due to missing UI policies.

Answer

It prevents the CIs from ever being viewed in the Dependency View.

Answer

It triggers an infinite loop in the Discovery pattern engine.

Question 9

A team wants to create a new relationship type to define a custom dependency between hardware and business applications. Which module should be used to define this new relationship type?

Accepted Answer

Relationship Types. Relationship Types (cmdb_rel_type) define the directional relationship labels between CIs and can be created or modified via the Relationship Types module.

Answer

Dependency View Configurator

Answer

CI Relationship Rules

Answer

CMDB Groups

Question 10

An administrator needs to ensure that network gear discovered by Discovery is classified under a specific custom child table of cmdb_ci_netgear. Where should the administrator define the classification criteria to map network devices to this custom table?

Accepted Answer

CI Class Manager. CI Class Manager is the centralized location used to manage CI classes, including setting up identification rules, reconciliation rules, and classification criteria for discovered items.

Answer

Discovery Definition > Network Classifications

Answer

CMDB Properties

Answer

CI Identifier Rules module

Question 11

During an import of server CIs, duplicate records are being created because different data sources send serial numbers in different cases (uppercase vs lowercase). Which configuration in Identification and Reconciliation Engine (IRE) will prevent this issue?

Accepted Answer

Enable case-insensitive matching on the identifier entry for the Serial Number attribute.. IRE identification rules can utilize preprocessing scripts or transform rules, but more commonly, identifier entries are configured with normalization or matching criteria, or payload transformers to normalize case sensitivity before matching.

Answer

Create a custom CMDB Data Manager policy to merge duplicates automatically.

Answer

Set the Reconciliation Rule to discard updates from the secondary data source.

Answer

Modify the Identification Rule weight to a higher number.

Question 12

An organization defines a multi-attribute identification rule for the Linux Server class using 'serial_number' and 'ip_address'. During a payload execution, the IRE finds an existing CI matching the serial number, but the IP address has changed. How does the IRE process this payload?

Accepted Answer

It updates the existing CI's IP address and any other payload attributes, treating it as the same physical asset based on the matching rule entry.. Multi-attribute identification rules evaluate criteria as an ordered set or rule criteria group. If the primary attributes match or if the rule specifies matching behavior, the existing CI is updated rather than creating a duplicate.

Answer

It flags the payload in the IRE Error Dashboard as an identification conflict requiring manual resolution.

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It creates a new CI record because the IP address attribute does not match the historical value.

Answer

It deletes the existing CI and inserts a new one with the updated attributes.

Question 13

An administrator needs to review the overall CMDB health scores for Completeness, Correctness, and Compliance across all classes. Which application and module should they navigate to?

Accepted Answer

Configuration > CMDB Dashboard. The CMDB Health Dashboard provides centralized visibility into the completeness, correctness, and compliance KPIs of the CMDB.

Answer

CI Class Manager > Overview

Answer

System Definition > Health Log

Answer

Discovery > Health Metrics

Question 14

While reviewing the CMDB Correctness score, an administrator notices a high count of orphan CIs. What is the definition of an orphan CI in the context of CMDB Health Correctness?

Accepted Answer

A CI that has no relationships defined where relationships are expected according to class configuration rules.. An orphan CI is a Configuration Item that belongs to a class that is expected to have relationships (such as containing or running on), but currently has no relationships defined.

Answer

A CI that has not been updated by any discovery source or manual import in over 90 days.

Answer

A CI record that shares the exact same serial number and name as another active CI record.

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A CI whose assigned support group or managed-by user no longer exists in the sys_user table.

Question 15

A company wants to automatically retire hardware CIs that have been in an 'In Maintenance' state for more than 180 days without an active update. Which CMDB feature is designed to automate this lifecycle management workflow?

Accepted Answer

CMDB Data Manager. CMDB Data Manager allows organizations to create automated policies for managing CI lifecycles, including attestation, archiving, and retirement.

Answer

Data Certification schedules

Answer

Lifecycle Management Business Rules

Answer

Scheduled Jobs with baseline scripts