CIS-DF Configuration Practice Test 2 — 15 Questions

Question 1

A configuration manager is setting up the CMDB to track relationships between business services and the underlying application services. They need to ensure that when a business service is retired, the associated application services are not automatically retired. Which relationship type should be used between business service and application service?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Uses::Used by. The 'Uses::Used by' relationship is a non-owning relationship that allows a business service to reference an application service without implying ownership or lifecycle dependency. This ensures that retiring the business service does not cascade to the application service. Other relationship types like 'Contains' or 'Depends on' may imply stronger lifecycle ties or are not designed for this mapping.

Answer

Depends on::Used by

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Contains::Contained by

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Runs on::Runs

Question 2

A CMDB administrator is configuring the Identification and Reconciliation Engine (IRE) to handle data from multiple discovery sources. They need to ensure that the IRE correctly identifies and reconciles CIs. Which two actions must be performed to enable IRE to process data from a new discovery source? (Choose two.)

Accepted Answer

Define a Data Source for the new discovery source.. To enable IRE to process data from a new discovery source, you must create an Identification Rule for the CI class and define a Data Source for that discovery source. The identification rule tells IRE how to uniquely identify CIs, and the data source provides context for applying the correct rules. Reconciliation rules are for conflict resolution but are not required for basic processing.

Answer

Enable the CMDB Health Dashboard for the new source.

Answer

Create a Transform Map to convert data to CI format.

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Configure a Reconciliation Rule to specify attribute precedence.

Question 3

You notice that a specific data source (e.g., SCCM) is overwriting critical configuration attributes that are manually maintained by your infrastructure team. How should you prevent this data source from updating those specific attributes?

Accepted Answer

Configure Reconciliation Definitions with attribute-level precedence rules.. Reconciliation Definitions in ServiceNow CMDB allow attribute-level precedence rules that determine which data source 'wins' when multiple sources update the same CI attribute. By configuring a reconciliation rule that assigns higher precedence to manually maintained attributes (or excludes the SCCM source from those specific attributes), the infrastructure team's manual edits are preserved while SCCM continues updating other fields. This is the designed mechanism for resolving multi-source attribute conflicts without disabling the integration.

Answer

Create a Business Rule on the cmdb_ci table to check the updated-by user.

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Modify the Identification Rule to exclude the manual attributes.

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Disable the data source integration entirely.

Question 4

A user wants to view the parent-child relationships and upstream/downstream dependencies of a core router in a graphical map format. Which ServiceNow feature should they open?

Accepted Answer

Dependency Views. Dependency Views in ServiceNow provides a graphical map showing CI relationships, including parent-child hierarchies and upstream/downstream dependencies. It is specifically designed to visualize how CIs connect and impact each other, making it the correct feature for viewing a core router's relationships in map format.

Answer

CI Class Manager

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CMDB Query Builder

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CSDM Dashboard

Question 5

Your enterprise has acquired a company that uses custom naming conventions, causing duplicate CIs to be created during discovery. Which tool should you use to examine and adjust how incoming CIs are matched against existing records in the CMDB?

Accepted Answer

CI Class Manager. The CI Class Manager is the centralized interface for configuring identification and reconciliation rules, including how incoming CIs are matched to existing records. It allows you to define identification rules based on attributes (e.g., serial number, name) and reconciliation rules to handle duplicates. This is the correct tool to examine and adjust matching behavior when acquisitions introduce conflicting naming conventions.

Answer

Data Normalization Engine

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CMDB Health Dashboard

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Dependency View

Question 6

When configuring a new identification rule for a custom CI class using the CI Class Manager, you need to specify criteria that take precedence over other criteria. What element of the identification rule controls this priority?

Accepted Answer

Identification Section Order. In ServiceNow's CI Class Manager, identification rules are composed of multiple identification sections (e.g., based on serial number, MAC address, or name). Each section is evaluated in a specific order, and the first section that matches an existing CI is used to identify the CI. The 'Identification Section Order' field within the rule allows you to define which section takes precedence over others. This ordering is critical because it determines which criteria are applied first, ensuring that the most reliable identifiers are used before falling back to less specific ones.

Answer

Class Hierarchy Level

Answer

Identification Rule Priority Matrix

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Reconciliation Definition Weight

Question 7

Your organization wants to understand the impact of a failing database server on dependent business applications. Which component of the CMDB architecture must be configured to establish this dependency link?

Accepted Answer

Configuration Item Relationship (cmdb_rel_ci). Relationships between configuration items are stored in the Configuration Item Relationship table (cmdb_rel_ci), defining how CIs depend on or connect to one another.

Answer

CI Class Manager

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Identification and Reconciliation Engine (IRE)

Answer

Discovery Schedule

Question 8

An administrator needs to create a new custom Configuration Item class for specialized industrial IoT gateways that inherit base attributes from the Hardware class. Which table should be the parent table for this new class?

Accepted Answer

cmdb_ci_hardware. Custom CI classes representing physical hardware typically inherit from the cmdb_ci_hardware table to leverage existing hardware attributes and identification rules.

Answer

cmdb_rel_ci

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cmdb_ci

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cmdb

Question 9

Where in ServiceNow should an administrator navigate to inspect the current list of CMDB classes, review class attribute counts, and check identification rules?

Accepted Answer

Configuration > CI Class Manager. The CI Class Manager (Configuration > CI Class Manager) is the dedicated ServiceNow interface for inspecting and managing CMDB classes, viewing class attributes and their counts, and configuring identification rules per class. It centralizes class hierarchy, attribute metadata, and identification/reconciliation settings in one place.

Answer

System Definition > Tables

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System UI > Forms

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Configuration > CMDB Health Dashboard

Question 10

An enterprise is planning to deploy a complex multi-tier application architecture. They want to ensure that application services are mapped using the correct relationship types between technical CIs and logical service nodes. Which recommended relationship type represents the connection between a logical application service and its running software instance?

Accepted Answer

Runs on / Runs. The 'Runs on / Runs' relationship type represents the connection between a logical application service (or application) and the running software instance (e.g., a software instance running on a server). This is the standard CSDM relationship for mapping a logical service node to the technical CI that hosts or executes it. It captures the deployment/runtime dependency, which is exactly what the question describes.

Answer

Contains / Contained by

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Used by / Uses

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Connects to / Connected by

Question 11

An administrator needs to create a query that pulls all virtual machines running on ESXi hosts where the host status is 'Maintenance'. Which tool is best suited for building this multi-table query visually without writing SQL or custom scripts?

Accepted Answer

CMDB Query Builder. CMDB Query Builder is the ServiceNow tool specifically designed for visually building multi-table queries across CMDB classes and relationships without writing SQL or scripts. It allows drag-and-drop selection of CI classes, relationship traversal, and filter conditions, making it ideal for queries like 'all VMs running on ESXi hosts with status Maintenance.' It is the recommended tool for ad-hoc CMDB relationship queries.

Answer

Report Designer

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CI Class Manager

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Performance Analytics

Question 12

An integration script is passing a complex payload containing multiple related CIs to the Identification and Reconciliation Engine (IRE) via the script include 'JSONUtils' or 'CmdbUtil'. Which payload structure is required for the IRE to correctly process related CIs in a single transaction?

Accepted Answer

A root object containing an 'items' array for the CIs and a 'relations' array specifying parent, child, and relationship type references.. The IRE payload requires a structured JSON object containing an 'items' array for the CIs and a 'relations' array to define relationships between items in the payload.

Answer

Separate REST API calls for each CI followed by a manual relationship creation call.

Answer

A CSV file attached to a Data Source record processed exclusively by a Transform Map.

Answer

A flat array of CI records with parent and child reference ID fields embedded directly in each CI record.

Question 13

When configuring CMDB health metrics, which of the following represents one of the three core pillars measured by the CMDB Health Dashboard?

Accepted Answer

Completeness. The CMDB Health Dashboard in ServiceNow measures three core pillars: Completeness, Compliance, and Correctness. Completeness specifically evaluates whether required CI attributes and relationships are populated, ensuring the CMDB has the necessary data to support IT processes. This is a fundamental metric because incomplete CIs can lead to inaccurate impact analysis and service mapping. The other options—Security, Performance, and Availability—are not part of the CMDB Health Dashboard's core pillars; they are operational metrics tracked elsewhere.

Answer

Security

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Performance

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Availability

Question 14

Your team is troubleshooting a problem where discovery payloads for network gear are failing identification because multiple network devices share the same MAC address due to virtual routing and switching configurations. How can you resolve this in the CI Class Manager?

Accepted Answer

Modify the identification rule for the network gear class to include secondary unique identifiers like serial number or IP address in combination with MAC address.. When multiple network devices share the same MAC address (common in virtual routing/switching or VRF scenarios), the default identification rule that relies solely on MAC address will fail or create duplicate/incorrect CIs. The correct fix is to modify the identification rule for the network gear class to use a combination of attributes — such as serial number or IP address combined with MAC — so that each device is uniquely identified. This ensures the IRE (Identification and Reconciliation Engine) can distinguish between devices that appear to have the same MAC.

Answer

Create a Business Rule to merge duplicate records after discovery runs.

Answer

Change the discovery schedule interval to prevent overlapping scans.

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Disable the MAC address attribute from the cmdb_ci table entirely.

Question 15

When designing a custom CI class hierarchy, what is the primary benefit of inheriting from an existing parent class rather than creating an entirely independent base table?

Accepted Answer

It automatically inherits parent class attributes, identification rules, and relationship definitions.. Inheriting from an existing parent class in the CI class hierarchy allows the child class to automatically inherit attributes, identification rules, and relationship definitions from the parent. This promotes consistency, reduces configuration effort, and ensures that the child class adheres to the same data model and identification logic as the parent.

Answer

It bypasses the need for IRE processing.

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It prevents the table from ever being deleted.

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It automatically populates data from external discovery sources without mapping.