Question 31 of 510

Database Administration and CMDB →mediumMultiple ChoiceObjective-mapped

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.

Exhibit

Refer to the exhibit.
{
  "identifier": "business_application",
  "rules": [
    { "field": "name", "operator": "equals" },
    { "field": "business_service", "operator": "equals" }
  ],
  "action": "create_or_reconcile"
}

Given the IRE identification rule shown, what will happen when a Discovery probe sends a CI with a name that already exists in the CMDB but with a different business_service?

Question 1mediummultiple choice

Full question →

Exhibit

Refer to the exhibit.
{
  "identifier": "business_application",
  "rules": [
    { "field": "name", "operator": "equals" },
    { "field": "business_service", "operator": "equals" }
  ],
  "action": "create_or_reconcile"
}

A
The discovery will fail and not create or update any CI.
Why wrong: Discovery itself does not fail; IRE handles the decision.
B
The existing CI will be updated with the new business_service.
Why wrong: Without a match, no update occurs.
C
A new CI will be created because the business_service is different.
Since the combination of name and business_service does not match, IRE creates a new CI.
D
The identification rule will match based on name only, ignoring business_service.
Why wrong: The rule explicitly includes business_service; it is not ignored.

Full breakdown with real-world context →

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

✓

A new CI will be created because the business_service is different.

The IRE (Identification and Reconciliation Engine) rule in ServiceNow uses the 'name' field as the primary identifier for CIs. When a Discovery probe sends a CI with a name that already exists but a different business_service, the IRE treats the business_service as a separate attribute, not part of the identification key. Therefore, it creates a new CI because the combination of identification attributes (name alone) does not match any existing CI when the business_service differs, as the rule does not include business_service in the match criteria.

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 discovery will fail and not create or update any CI.
Why it's wrong here
Discovery itself does not fail; IRE handles the decision.
✗
The existing CI will be updated with the new business_service.
Why it's wrong here
Without a match, no update occurs.
✓
A new CI will be created because the business_service is different.
Why this is correct
Since the combination of name and business_service does not match, IRE creates a new CI.
Related concept
Read the scenario before looking for a memorised answer.
✗
The identification rule will match based on name only, ignoring business_service.
Why it's wrong here
The rule explicitly includes business_service; it is not ignored.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates assume the 'name' field is a unique identifier across all attributes, but ServiceNow's IRE treats each identification rule independently, and a different non-key attribute like business_service forces a new CI creation, not an update or failure.

Detailed technical explanation

How to think about this question

Under the hood, the IRE uses a 'GlideIdentificationEngine' that evaluates CI records against a set of identification rules defined in the 'Identification and Reconciliation' module. Each rule specifies a 'match type' (e.g., 'exact match' on name) and a 'reconciliation type' (e.g., 'create or update'). When a CI arrives with a name that exists but a different business_service, the IRE sees no exact match on the identification key (name only), so it triggers a 'create' action, not an update. This behavior is critical in multi-tenant environments where the same hostname might serve different business services, preventing accidental overwrites.

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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.

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.

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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: A new CI will be created because the business_service is different. — The IRE (Identification and Reconciliation Engine) rule in ServiceNow uses the 'name' field as the primary identifier for CIs. When a Discovery probe sends a CI with a name that already exists but a different business_service, the IRE treats the business_service as a separate attribute, not part of the identification key. Therefore, it creates a new CI because the combination of identification attributes (name alone) does not match any existing CI when the business_service differs, as the rule does not include business_service in the match criteria.

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 24, 2026

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