- A
The 'Source' field on a CI can be set per attribute.
Why wrong: Source is set at the CI level, not per attribute.
- B
The Identification and Reconciliation (IRE) engine processes incoming CI data.
The IRE handles identification and reconciliation of CI data.
- C
Reconciliation rules are used to identify duplicate CIs.
Why wrong: Identification rules, not reconciliation, handle duplicates.
- D
Reconciliation rules define which source has priority for updating CI attributes.
Reconciliation rules determine source priority.
- E
The CMDB automatically deletes duplicate CIs when detected.
Why wrong: Duplicates are flagged but not automatically deleted.
Question 151 of 520
SNOW-CSA Database Administration and CMDB Practice Question
This SNOW-CSA practice question tests your understanding of database administration and cmdb. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO statements about ServiceNow CMDB identification and reconciliation are correct?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The Identification and Reconciliation (IRE) engine processes incoming CI data.
Option B is correct because the Identification and Reconciliation (IRE) engine is the ServiceNow component responsible for processing incoming CI data from sources like Discovery, Service Mapping, or integrations. It applies identification rules to determine if a CI already exists and reconciliation rules to resolve attribute conflicts, ensuring data integrity in the CMDB.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The 'Source' field on a CI can be set per attribute.
Why it's wrong here
Source is set at the CI level, not per attribute.
- ✓
The Identification and Reconciliation (IRE) engine processes incoming CI data.
Why this is correct
The IRE handles identification and reconciliation of CI data.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Reconciliation rules are used to identify duplicate CIs.
Why it's wrong here
Identification rules, not reconciliation, handle duplicates.
- ✓
Reconciliation rules define which source has priority for updating CI attributes.
Why this is correct
Reconciliation rules determine source priority.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The CMDB automatically deletes duplicate CIs when detected.
Why it's wrong here
Duplicates are flagged but not automatically deleted.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the roles of identification rules (which find duplicates) with reconciliation rules (which resolve attribute conflicts), leading them to incorrectly select option C as correct.
Detailed technical explanation
How to think about this question
Under the hood, the IRE engine uses a three-phase process: identification (matching via identifier fields), reconciliation (applying priority rules to resolve attribute conflicts), and then updating or creating the CI. A subtle behavior is that if no identification rule matches, the IRE creates a new CI, but if multiple matches are found, it can create a duplicate unless a 'deny duplicate' rule is configured. In a real-world scenario, a network switch discovered by both SNMP Discovery and a cloud API might have conflicting 'location' attributes, and reconciliation rules with source priority (e.g., 'Discovery' over 'API') ensure the correct value is retained.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the SNOW-CSA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Visual reference
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Database Administration and CMDB — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this SNOW-CSA question test?
Database Administration and CMDB — This question tests Database Administration and CMDB — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The Identification and Reconciliation (IRE) engine processes incoming CI data. — Option B is correct because the Identification and Reconciliation (IRE) engine is the ServiceNow component responsible for processing incoming CI data from sources like Discovery, Service Mapping, or integrations. It applies identification rules to determine if a CI already exists and reconciliation rules to resolve attribute conflicts, ensuring data integrity in the CMDB.
What should I do if I get this SNOW-CSA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This SNOW-CSA practice question is part of Courseiva's free ServiceNow certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SNOW-CSA exam.
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