SNOW-CSA Database Administration and CMDB Practice Question
Exhibit
Refer to the exhibit.
Exhibit:
```
IRE Log Entry:
Input CI: { name: 'WebServer01', serial_number: 'SN123', class: 'cmdb_ci_server' }
Match found: CI sys_id 'abc123' with serial_number 'SN123'
Action: Insert (new record created)
```An administrator inspects the IRE log and sees the exhibit. The IRE created a new CI despite finding a match on serial_number. What is the most likely reason?
⚠ Common exam trap
A common mix-up: candidates assume the IRE automatically uses all unique fields (like serial_number) for matching, but in reality, only the attributes explicitly listed in the identification rule are used for reconciliation.
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 rule for cmdb_ci_server does NOT include serial_number.
The IRE uses identification rules to determine which attributes are used for matching CIs. If the identification rule for cmdb_ci_server does NOT include serial_number, then even though a match on serial_number exists, the IRE will not consider it a match and will create a new CI. The IRE only reconciles based on the attributes defined in the identification rule.
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 identification rule for cmdb_ci_server includes serial_number.
Why it's wrong here
If included, it would have updated the existing CI.
- ✗
The IRE is configured to always create new records regardless of matches.
Why it's wrong here
IRE follows the identification rule; it does not force creation.
- ✓
The identification rule for cmdb_ci_server does NOT include serial_number.
Why this is correct
Without serial_number in the rule, the IRE treats it as a new CI.
- ✗
The existing CI has a different name, so IRE considers it a different CI.
Why it's wrong here
IRE uses identifiers, not name, for matching.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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