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CIS-DF · domain

Ingest

The Ingest domain covers how configuration item data enters the CMDB: Discovery, Service Graph Connectors, Import Sets, and the Identification and Reconciliation Engine (IRE). Questions present integration failure scenarios and ask you to diagnose payload, attribute mapping, relationship, and data quality issues using real ServiceNow features.

58 questions10 easy26 medium22 hard

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What this domain covers

What to know about Ingest

Be able to trace an inbound payload through Import Sets, IRE, and Service Graph Connectors, and fix mapping, identification, and relationship errors. The single most important thing: IRE requires standard attribute names and valid relationship definitions, not raw source field names.

IRE identification and reconciliation rules applied to inbound payloads via the Identification and Reconciliation Engine

Service Graph Connector attribute mapping to IRE attributes and CMDB classes

Discovery configuration for multi-VLAN environments, including MID Server and credentials

CMDB Data Manager and CMDB Health dashboards for completeness, correctness, and compliance metrics

Watch out for

Common Ingest exam traps

  • ▸Assuming a created CI automatically creates its relationships; cmdb_rel_ci records require valid parent, child, and relationship type values.
  • ▸Mapping custom source fields directly instead of translating them to standard IRE attribute names, causing connector ingestion failures.
  • ▸Treating Discovery as credential-free or single-subnet; missing MID Server placement or credentials blocks ingestion across VLANs.

Question index

All Ingest questions (58)

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1

An architect is troubleshooting an integration payload processed by the Identification and Reconciliation Engine (IRE) that resulted in an error. Which THREE of the following scenarios commonly trigger IRE processing errors? (Choose three.)

Hard
2

An administrator is configuring a Service Graph Connector for AWS. They need to ensure that the connector only ingests EC2 instances that are currently running, and ignores terminated instances. Which configuration should they apply?

Medium
3

An organization is troubleshooting duplicate CIs appearing in the CMDB after running a new integration. Which TWO administrative actions should be taken to investigate and resolve this issue? (Choose two.)

Medium
4

A healthcare enterprise uses both ServiceNow Discovery and a third-party asset management tool to update server records in the CMDB. The third-party tool frequently populates stale operational status data. Using Data Source Precedence rules, how can the administrator ensure that ServiceNow Discovery always overrides the third-party tool for the 'Operational status' attribute on Linux servers?

Hard
5

An administrator is troubleshooting missing relationship data after running a custom data integration. Which THREE of the following factors should be investigated? (Choose three.)

Hard
6

An administrator is setting up an IntegrationHub REST step to ingest server data into the CMDB via the IRE. Which TWO components must be properly configured within the IntegrationHub action or script? (Choose two.)

Medium
7

An architect is designing an integration to ingest virtual machines from a custom cloud provider into the CMDB using Robust Transform Engine (RTE). The payload contains nested objects representing datastores attached to each VM. How should the RTE be configured to handle these related child objects?

Medium
8

An administrator is configuring a Service Graph Connector. They notice that the integration is failing because the inbound payload uses a custom field name for the serial number instead of the standard IRE attribute name `serial_number`. How should this mapping discrepancy be resolved without altering the external source system?

Medium
9

An administrator is reviewing the CMDB IRE execution logs and notices numerous warnings regarding payloads that skipped attribute updates. Which THREE of the following reasons would cause the IRE to skip updating an attribute on an existing CI? (Choose three.)

Hard
10

An administrator is troubleshooting a Scheduled Data Import that uses an IntegrationHub REST step to pull server data. The import completes, but no CIs are created or updated in the CMDB, and the import set rows show a status of 'Processed'. Where should the administrator check to see if the IRE rejected the payload?

Medium
11

An administrator is troubleshooting an issue where records ingested via Robust Transform Engine (RTE) are failing to populate the CMDB. Upon inspecting the Robust Transform Engine execution logs, they see errors related to payload identification. Which THREE of the following troubleshooting steps should they perform? (Choose three.)

Hard
12

A configuration manager is setting up a new data import using an Excel file. They want the import to automatically create or update CIs in the CMDB while ensuring that duplicates are not created. Which method should they use to achieve this?

Easy
13

An enterprise has multiple disjointed data sources feeding network gear into the CMDB. Source A provides high-accuracy IP data, while Source B provides high-accuracy serial numbers. However, their discovery source names differ slightly in casing and format across jobs. How does the IRE handle discovery source strings during reconciliation?

Hard
14

An enterprise has implemented strict identification rules requiring serial numbers for all hardware. However, a batch of legacy network hubs has no serial numbers encoded in firmware. When ingested via import sets, the IRE rejects every record due to missing identification attributes. The business wants these records ingested into the CMDB anyway, using their MAC address as the unique identifier. What is the correct way to accommodate this?

Hard
15

When configuring a Service Graph Connector, where does an administrator typically test and execute the data ingestion process to verify that source data maps correctly to staging tables and the CMDB?

Easy
16

An organization is ingesting printer CIs from a legacy asset system via Import Sets. Some incoming records contain a serial number with leading/trailing whitespace, causing the IRE to treat them as distinct CIs rather than matching existing ones. Where can data normalization be applied to clean this data before it reaches the IRE?

Medium
17

An administrator is reviewing Discovery results and notices that network switches are successfully discovered, but their associated switch ports are missing. Which TWO factors are most likely responsible for this ingestion gap? (Choose two.)

Medium
18

An implementer is setting up a new integration using IntegrationHub to ingest network switch data into the CMDB. Which API should be utilized within the script or action to ensure that the payload passes through deduplication and reconciliation checks?

Easy
19

An administrator is configuring a new Import Set to ingest third-party server data into the cmdb_ci_server table. During testing, they notice that records are being inserted as duplicates rather than updating existing CIs because the incoming payload lacks a unique identifier match. Which component should be configured to ensure the Identification and Reconciliation Engine (IRE) correctly identifies the existing CI?

Medium
20

An administrator is designing identification rules for a custom CI class in the CMDB. Which THREE ofg the following best practices should be followed when configuring identification rules? (Choose three.)

Hard
21

An organization implements CSDM and wants to ingest business applications and their hosting environments. They receive a payload containing a Business Application CI that references a non-existent Application Service CI. How does the IRE handle references to related CIs that do not yet exist in the CMDB?

Hard
22

An organization ingests data from two different cloud providers into the CMDB. Provider A populates virtual machines with a serial number, while Provider B populates virtual machines with a BIOS UUID but no serial number. Both providers use the same identification rule which requires serial number. Consequently, Provider B records fail identification and create duplicates. How should the identification rules be configured to correctly handle both providers?

Hard
23

An administrator is troubleshooting an integration that uses Robust Transform Engine (RTE) to ingest software licenses. During testing, records are inserted into staging tables, but the RTE fails to push them into the CMDB via the IRE. Which THREE areas should the administrator inspect to diagnose the failure? (Choose three.)

Hard
24

An organization uses ServiceNow Discovery to populate servers. They also have a security vulnerability scanner that ingests vulnerability records and associates them with CIs in the CMDB. The security tool frequently sends payloads containing stale IP addresses that match existing CIs incorrectly because the IP reuse policy in their network causes IP addresses to cycle rapidly. How can the administrator prevent the security tool from using IP address as an identification criterion while still allowing it to update vulnerability attributes?

Hard
25

An organization discovers network gear using both SNMP Discovery and an external cloud management platform API. Both integrations populate the same physical switch CIs. The cloud platform sometimes sends an empty string for the serial number, which accidentally clears out valid serial numbers previously populated by SNMP Discovery. How can this be prevented using CMDB ingestion controls?

Hard
26

An administrator is troubleshooting a custom integration where incoming JSON payloads for routers contain an array of interfaces. When the payload is processed, the parent router updates successfully, but none of the interface CIs are created. Reviewing the IRE payload structure shows that the interface objects are nested inside a property named `network_interfaces`. What must be configured in the IRE payload mapping to successfully process these child items?

Hard
27

When reviewing CI records ingested into the CMDB, an administrator notices a field labeled 'First discovered' and another labeled 'Last discovered'. Which component populates these lifecycle tracking fields automatically?

Easy
28

An enterprise is planning a data ingestion strategy for their CSDM implementation. Which TWO principles should guide their approach to data ingestion and the CMDB? (Choose two.)

Medium
29

An administrator is reviewing the CMDB Health Dashboard and notices high staleness scores across several server classes. Which TWO of the following data ingestion practices contribute to high CMDB staleness? (Choose two.)

Medium
30

An administrator notices that when Discovery updates a virtual machine, the 'Environment' attribute populated by a manual spreadsheet import is overwritten, despite Data Source Precedence rules being configured. Upon investigation, they find that both sources are writing with the exact same discovery source string value. What is the correct way to resolve this conflict?

Hard
31

When reviewing the Identification and Reconciliation Engine (IRE) payload processing results, an administrator notices an error stating 'Mandatory attributes missing for identification'. What does this error signify?

Easy
32

An organization uses Service Mapping to map a critical e-commerce application. During mapping, a custom web server process is discovered on a host, but it fails to establish a relationship with the underlying software installation. Where should the administrator verify or configure the identification rules for process classification and mapping?

Hard
33

An implementer is configuring Service Graph Connectors to ingest infrastructure data into ServiceNow. Service Graph Connectors utilize the Robust Transform Engine (RTE) and the IRE. What is the primary benefit of using Service Graph Connectors over legacy Import Sets for third-party data ingestion?

Medium
34

An administrator is configuring a Service Graph Connector to ingest client workstations. During test runs, they notice that workstations with identical hostnames but different serial numbers are being incorrectly merged into a single CI. Where should the administrator check and modify the matching criteria to ensure serial number is prioritized over hostname?

Medium
35

An administrator is setting up an integration that uses Robust Transform Engine (RTE). They need to combine two incoming fields—'First Name' and 'Last Name' from a user data source—into a single 'Managed By' reference field on the target CI. Which RTE feature should they use?

Medium
36

Which ServiceNow utility should an administrator use to view and test identification rules, simulated payloads, and payload processing results for troubleshooting CI ingestion issues?

Easy
37

An administrator wants to check which identification rules are active for the `cmdb_ci_computer` class. Where in the ServiceNow user interface should they navigate?

Easy
38

An organization is preparing to ingest data from an external asset tracking system into the ServiceNow CMDB using a custom REST API integration. Which THREE architectural components must be considered to ensure data integrity and prevent duplication? (Choose three.)

Hard
39

An enterprise is designing a multi-source data ingestion architecture for their CMDB, combining Discovery, Service Graph Connectors, and manual spreadsheet imports. Which THREE governance practices should be implemented to ensure data integrity? (Choose three.)

Hard
40

An administrator is configuring an IntegrationHub Spoke to ingest data from an external monitoring tool into the CMDB. The integration uses the IRE to process payloads. When testing the action, the payload returns an error stating that the payload is missing the mandatory 'className' property. How should the administrator correct this?

Medium
41

An organization is migrating from a legacy configuration management database to ServiceNow. They load initial server records using custom import sets without the IRE. Later, they enable ServiceNow Discovery. They notice that every discovered server creates a duplicate CI right alongside the imported record. What caused this duplicate creation?

Medium
42

Which role is typically required to configure Identification Rules and Data Source Precedence rules in the CI Class Manager?

Easy
43

An administrator is troubleshooting an integration where an incoming JSON payload contains relationships between servers and IP addresses. The server is created successfully, but the relationship record in `cmdb_rel_ci` is missing. Upon checking the IRE execution log, the system indicates that the relationship type string was invalid. How should this be resolved?

Medium
44

An enterprise is setting up automated server discovery across multiple VLANs. Which TWO configuration steps are essential for ensuring Discovery successfully ingests this infrastructure? (Choose two.)

Medium
45

An administrator is configuring Data Source Precedence rules to manage attribute updates from multiple integrations. Which THREE of the following statements about Data Source Precedence are accurate? (Choose three.)

Hard
46

When configuring Identification Rules in CI Class Manager, administrators can specify multiple criteria entries. Which TWO behaviors apply when multiple identification rule entries are defined for a single class? (Choose two.)

Medium
47

When designing an integration using Robust Transform Engine (RTE), which TWO components must be configured to successfully ingest data into the CMDB? (Choose two.)

Medium
48

An administrator is using the Identification and Reconciliation Engine (IRE) to ingest data from multiple discovery sources. They notice that a server's 'Serial number' attribute is being overwritten by a source that is considered less authoritative. Which feature should they configure to ensure that the most trusted source's data takes precedence during IRE processing?

Hard
49

When configuring an identification rule for a custom hardware CI class, an administrator can select multiple attributes to form a compound identification rule. What is the operational significance of selecting multiple attributes within a single rule entry?

Easy
50

A CMDB administrator is building an IntegrationHub ETL import that ingests Linux servers from an external discovery tool. The source payload contains a field named 'host_name', but the CMDB CI Class Manager mapping must populate the 'Name' attribute, and the source also provides 'os_version' that must land in 'OS Version'. After running the import, the administrator sees that the CI records are created but the 'Name' field is blank while 'OS Version' is populated correctly. Which action should the administrator take to resolve the blank 'Name' field?

Medium
51

When reviewing data ingestion methods for the ServiceNow CMDB, which TWO methods natively invoke the Identification and Reconciliation Engine (IRE) out of the box? (Choose two.)

Medium
52

An organization wants to ingest data into the CMDB using the Robust Transform Engine (RTE). Which TWO of the following capabilities are provided by RTE? (Choose two.)

Medium
53

An administrator notices that a manual update made to a server's 'Asset tag' attribute by an IT agent is constantly overwritten during the nightly Discovery run, even though Discovery does not directly scan the asset tag. How is this behavior controlled and how should it be resolved?

Hard
54

An administrator is configuring a Robust Transform Engine (RTE) definition for a complex CMDB data import. They need to ensure that if an incoming record fails identification or has missing mandatory attributes, the entire batch does not fail, but instead logs an error for that specific row. Where is this error handling behavior managed in RTE?

Hard
55

An administrator is setting up a ServiceNow Discovery schedule for a subnet in a restricted data center. The Discovery schedule runs successfully, but no new CIs are populated in the CMDB. Upon checking the Discovery status, the probes completed, but the horizontal discovery pattern logs indicate a 'Permission Denied' on WMI/SSH commands. Where should the administrator verify the credentials used for this ingestion?

Medium
56

An administrator is setting up an import using Robust Transform Engine (RTE). They need to ensure that incoming records are only processed if a specific status field equals 'Active'. Where should this conditional filtering be configured within RTE?

Medium
57

An administrator is configuring Data Source Precedence rules in the CMDB. Which TWO of the following statements regarding Data Source Precedence are true? (Choose two.)

Medium
58

Which ServiceNow module provides a centralized dashboard view of CMDB data quality metrics, including completeness, correctness, and compliance?

Easy

Frequently asked questions

What does the Ingest domain cover on the CIS-DF exam?
Be able to trace an inbound payload through Import Sets, IRE, and Service Graph Connectors, and fix mapping, identification, and relationship errors. The single most important thing: IRE requires standard attribute names and valid relationship definitions, not raw source field names.
How many questions are in this domain?
This page lists all 58 Ingest questions in the CIS-DF question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
What is the best way to practise this domain?
Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
Can I practise only Ingest questions?
Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.
ServiceNow Certified Implementation Specialist - Data Foundations (CMDB and CSDM) (CIS-DF) (CIS-DF) Ingest Practice Questions