ServiceNow CIS-DF Exam Questions
Certified Implementation Specialist - Data Foundations (CMDB and CSDM) (Page 5 )

Updated On: 2-May-2026

A CMDB Administrator needs to set a CI Class as a Principal Class.

Which CI Class Manager tab would need to be accessed?

  1. Health > Attributes
  2. Class Info > Attributes
  3. Class Info > Basic Info

Answer(s): C

Explanation:

The Principal Class setting is configured in the CI Class Manager under the Basic Info section of the Class Info tab. This setting designates the class as a principal class so that configuration items from that class appear in CI reference fields used in operational records such as incidents, problems, and changes.



A ServiceNow Administrator needs to create multiple new classes in the CMDB but wants to follow ServiceNow's best practices for naming CMDB tables to prevent technical debt.

Which is the starting prefix for all custom CMDB tables?

  1. ci_cmdb
  2. cmdb_ci
  3. u_cmdb_ci
  4. u_ci_cmdb

Answer(s): C

Explanation:

ServiceNow best practice requires custom CMDB classes to use the prefix u_cmdb_ci so that they clearly follow the CMDB table naming convention while also identifying the table as a customer-created extension.
This ensures the class fits properly within the CMDB hierarchy and avoids conflicts with out-of-box tables during upgrades.



A Configuration Management team needs to prevent duplicate server records to avoid confusion among users. Server records are identified when they are processed via the Identification and Reconciliation Engine (IRE) using the configured identification rules.

Where would these rules be configured?

  1. CMDB Workspace
  2. CMDB CI Class Manager
  3. CMDB Health Dashboard
  4. CMDB Data Manager

Answer(s): B

Explanation:

Identification rules used by the Identification and Reconciliation Engine are configured in the CI Class Manager for each CI class. This interface allows administrators to define the identifiers that uniquely distinguish configuration items, ensuring that incoming data is matched correctly and preventing the creation of duplicate records in the CMDB.



A CMDB Administrator notices that CIs do not have a support group.

How can the support group be automatically populated and maintained on the CI record?

  1. Technology Management Service Offering (Technical Service Offering)
  2. Technology Management Service (Technical Service)
  3. CI Class Manager
  4. Dynamic CI group

Answer(s): A

Explanation:

Technology Management Service Offerings automatically synchronize operational ownership fields such as Support Group to the configuration items associated with the offering. When a CI is linked to a Technical Service Offering, the Support Group defined on that offering is automatically populated and maintained on the CI record.



Using CI Class Manager, the Tomcat identification rule has the following criterion attributes configured:

Class
Install Directory

Which identifier entry configuration option must be checked to attempt a match using the Application identification rule if no match is found using the Tomcat identification rule?

  1. Allow fallback to parent's rules
  2. Independent
  3. Applies to
  4. Criterion attributes

Answer(s): A

Explanation:

The Allow fallback to parent's rules option enables the Identification and Reconciliation Engine to attempt identification using the parent class identification rules when a match cannot be found using the child class rule. In this case, if the Tomcat identification rule does not find a match using its criteria, the system will fall back to the Application class identification rule to attempt identification.



A CMDB CI Class Owner has been asked to change the icon for the UNIX Server class.

Which CI Class Manager tab can the owner use to change the icon for the class?

  1. CI List
  2. Basic Info
  3. Attributes
  4. Suggested Relationships

Answer(s): B

Explanation:

The icon for a CI class is configured in the Basic Info tab within CI Class Manager. This tab contains the core configuration settings for the class, including display properties such as the icon that represents the CI class in the platform.



A Configuration Manager is reviewing the life cycle of CIs to ensure data accuracy, consistency, and relevance. The manager reviews the legacy status values and their equivalent CSDM life cycle stage and life cycle stage status values.

Where are these reviewed?

  1. Life cycle choice list
  2. Life cycle mappings
  3. Life cycle properties

Answer(s): B

Explanation:

Life cycle mappings display the relationship between legacy status values and the corresponding CSDM life cycle stage and life cycle stage status values. This mapping allows administrators to review and align existing status fields with the standardized CSDM lifecycle model to ensure consistent lifecycle management across configuration items.



An organization is updating the CMDB to include new asset types like IoT devices. Relevant CI classes need to be added and outdated ones need to be removed from the Principal Class filter to ensure accurate display in ITSM processes.

Which roles are needed to add or remove classes? (Choose two.)

  1. personalize_dictionary
  2. sn_csdm_admin
  3. sn_cmdb_admin
  4. cmdb_query_builder

Answer(s): B,C

Explanation:

The sn_cmdb_admin role provides administrative permissions to manage CMDB structure, including creating, modifying, and managing CI classes within CI Class Manager. The sn_csdm_admin role allows administrators to manage CSDM-related configurations, including adjustments to principal classes and other CMDB structure elements aligned with the CSDM model.



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