CCNA CMDB Questions

MCQmedium

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?

A.Data Certification schedules

B.Lifecycle Management Business Rules

C.CMDB Data Manager

D.Scheduled Jobs with baseline scripts

AnswerC

CMDB Data Manager policies automate lifecycle operations such as retirement and deletion based on defined criteria.

Why this answer

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

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MCQeasy

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?

A.Relationship Builder

B.CMDB Dashboard

C.CI Class Manager

D.Dependency View

AnswerD

The Dependency View renders an interactive map of related CIs and service dependencies.

Why this answer

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

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MCQmedium

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?

A.Access Control Lists (ACLs)

B.CI Class Manager Identification Rules

C.Data Source Precedence Rules

D.Reconciliation Definitions

AnswerD

Reconciliation definitions allow administrators to specify authoritative data sources at the class and attribute levels.

Why this answer

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.

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MCQmedium

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?

A.Discovery Definition > Network Classifications

B.CI Class Manager

C.CMDB Properties

D.CI Identifier Rules module

AnswerB

CI Class Manager provides a unified interface to view and configure CI classes and their associated classification criteria.

Why this answer

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.

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Multi-Selecthard

Which THREE of the following actions can be performed using CMDB Data Manager? (Choose three.)

Select 3 answers

A.Generate real-time network topology maps for IT service mapping.

B.Archive old and unused CI records based on age and lifecycle state criteria.

C.Automatically discover cloud infrastructure using AWS CloudFormation templates.

D.Delete archived CIs after a specified retention period.

E.Retire CIs that have reached the end of their operational lifecycle.

AnswersB, D, E

Archiving is a supported lifecycle policy action in CMDB Data Manager.

Why this answer

CMDB Data Manager policies handle lifecycle operations including Attestation, Archive, Retire, and Delete.

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Multi-Selectmedium

Which TWO factors should be considered when defining relationship rules between CI classes? (Choose two.)

Select 2 answers

A.The IP subnet mask of the connected network gear.

B.The financial depreciation schedule of the connected assets.

C.Whether the relationship is mandatory or optional for compliance checking.

D.Allowed parent classes and child classes for the relationship type.

E.The operating system version of the parent server.

AnswersC, D

Relationship rules can specify cardinality and whether relationships are required.

Why this answer

CI relationship rules restrict which classes can have specific relationships with each other to maintain data quality.

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MCQhard

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?

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

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

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

D.A CI that has no relationships defined where relationships are expected according to class configuration rules.

AnswerD

Orphans are CIs missing mandatory or expected parent/child relationships.

Why this answer

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.

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MCQmedium

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?

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

B.It bypasses identification rules and reconciliation rules, risking data duplication and unauthorized overwrites.

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

D.It triggers an infinite loop in the Discovery pattern engine.

AnswerB

Direct table insertion circumvents the IRE engine, invalidating deduplication and data source precedence logic.

Why this answer

Bypassing the IRE means duplicate CIs can be created, and reconciliation rules governing attribute updates will not be enforced, compromising data integrity.

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MCQeasy

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?

A.Dependency View Configurator

B.CI Relationship Rules

C.CMDB Groups

D.Relationship Types

AnswerD

The Relationship Types module allows administrators to create and manage custom relationship labels and directions.

Why this answer

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

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MCQeasy

An auditor wants to verify the physical existence and accuracy of datacenter hardware CIs by having owners attest to their records. Which application provides this attestation capability?

A.Asset Management Audit module

B.CI Class Manager attestation wizard

C.Data Certification

D.CMDB Health Dashboard compliance tab

AnswerC

Data Certification provides the attestation framework for CMDB owners to verify CI accuracy.

Why this answer

Data Certification enables organizations to create attestation schedules where CI owners review and verify record accuracy.

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Multi-Selecthard

Which THREE of the following metrics are tracked under the Correctness pillar of the CMDB Health Dashboard? (Choose three.)

Select 3 answers

A.Staleness

B.Relationships (Invalid relationships)

C.Duplicate CIs

D.Required fields populated

E.Orphan CIs

AnswersB, C, E

Invalid or broken relationships are tracked under the Correctness pillar.

Why this answer

Correctness tracks data integrity problems, specifically Duplicates, Orphans, and Invalid Relationships or Stale references (depending on configuration, primarily Duplicates and Orphans). Let's list the valid correctness metrics.

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MCQhard

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?

A.Orphans (Correctness metric)

B.Audit (Completeness metric)

C.Staleness (Compliance metric)

D.Duplicate CIs (Correctness metric)

AnswerC

Staleness is a compliance KPI that tracks whether CIs have been updated or verified within a specified threshold.

Why this answer

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

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MCQeasy

An engineer needs to add a custom attribute called 'Rack Number' to all Linux Server CIs. Where should this modification be performed to ensure it applies correctly to the table hierarchy?

A.CI Class Manager

B.Table Builder on cmdb_ci_linux_server

C.System Definition > Custom Fields

D.Dictionary Editor on cmdb_ci

AnswerA

CI Class Manager provides a dedicated interface to add attributes to classes and manages the table inheritance properly.

Why this answer

CI Class Manager allows administrators to add attributes to a specific class and ensures the underlying dictionary entry is created on the correct table.

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MCQmedium

An organization notices that manual updates made by technicians to the 'Assigned to' field on server CIs are frequently being overwritten by automated nightly imports. What is the best way to prevent this without disabling the import entirely?

A.Modify the transform map to ignore the 'Assigned to' field during every import.

B.Configure a Reconciliation Rule giving priority to the 'UI / Manual' data source over the import data source for the 'Assigned to' attribute.

C.Write a Business Rule on the cmdb_ci table to abort updates to 'Assigned to'.

D.Lock the 'Assigned to' field dictionary attribute.

AnswerB

Reconciliation definitions can prioritize manual updates over automated data sources for specific attributes.

Why this answer

Reconciliation rules allow configuring data source precedence so manual updates or specific data sources retain control over specific attributes.

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Multi-Selectmedium

Which TWO of the following are recommended best practices when configuring identification rules in the CMDB? (Choose two.)

Select 2 answers

A.Create identification rules directly on the global cmdb table for all custom classes.

B.Use attributes that uniquely and reliably identify the CI, such as serial numbers or MAC addresses.

C.Disable all out-of-the-box identification rules to improve payload processing speed.

D.Include volatile attributes like IP addresses as the sole criteria in identification rules.

E.Test identification rules thoroughly in a sub-production instance before deploying payloads in production.

AnswersB, E

Reliable, unique attributes prevent false duplicates and ensure accurate matching.

Why this answer

Best practices for identification rules include using unique hardware attributes like serial numbers and avoiding overly broad attributes that cause false duplicates.

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MCQhard

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?

A.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.

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

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

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

AnswerA

The IRE identifies the CI using the matching criteria and performs an update payload operation, updating differing attributes while preserving sys_id.

Why this answer

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.

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MCQmedium

A team is importing asset and CI data from an external asset management tool. They want to ensure that when a CI is deleted in the external tool, it is also deleted in the ServiceNow CMDB. Which IRE payload setting accomplishes this?

A.Setting the Reconciliation Rule action to 'Cascade Delete'.

B.Including 'operation': 'delete' in the IRE payload structure for the target CI.

C.Enabling 'Auto-Delete' on the Data Source transform map properties.

D.Configuring the CI Class Manager to purge orphans automatically.

AnswerB

The IRE supports explicit delete operations passed within payload structures to remove CIs safely.

Why this answer

Payload processing in the IRE supports delete operations when configured via appropriate payload flags or integration mechanisms like IRE API delete requests.

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Multi-Selecthard

Which THREE of the following are benefits of using CI Class Manager? (Choose three.)

Select 3 answers

A.Automatic execution of incident management triage workflows for failed discoveries.

B.Direct editing of system-level Java source code for Discovery patterns.

C.Centralized viewing and editing of class-specific identification rules.

D.Ability to add, modify, and delete attributes for specific CI classes within the hierarchy.

E.Centralized management of reconciliation rules for classes and attributes.

AnswersC, D, E

CI Class Manager allows management of identification rules per class.

Why this answer

CI Class Manager provides a centralized console to manage classes, view class hierarchies, and configure identification/reconciliation rules.

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MCQhard

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?

A.Enable case-insensitive matching on the identifier entry for the Serial Number attribute.

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

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

D.Modify the Identification Rule weight to a higher number.

AnswerA

Configuring the identifier entry to ignore case ensures that 'SN12345' and 'sn12345' are treated as the same hardware instance.

Why this answer

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.

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MCQeasy

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?

A.CI Class Manager > Overview

B.System Definition > Health Log

C.Configuration > CMDB Dashboard

D.Discovery > Health Metrics

AnswerC

The CMDB Dashboard module opens the comprehensive health dashboard tracking core CMDB health metrics.

Why this answer

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

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Multi-Selecthard

Which THREE of the following statements are true regarding Identification and Reconciliation Engine (IRE) processing? (Choose three.)

Select 3 answers

A.IRE relies solely on the sys_id attribute to match and update existing Configuration Items.

B.IRE automatically deletes any CI that has not been updated within 30 days.

C.IRE processing can be invoked via script using the CMDBEngine API or JSON payloads.

D.IRE ensures that duplicate CIs are not created when multiple data sources report the same physical item.

E.Reconciliation rules determine which data sources are authorized to update specific CI attributes.

AnswersC, D, E

Administrators and developers can invoke the IRE programmatically using script includes and payload APIs.

Why this answer

IRE uses identification rules to find CIs, applies reconciliation rules to govern attribute updates, and processes payloads through APIs or Discovery.

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