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.
An administrator is managing a CMDB that contains both physical and virtual servers. The company uses a custom field 'u_os_version' to track the operating system version. When new servers are discovered, the field is populated correctly. However, when the operating system is updated manually by the IT team, the field is not updated. The administrator wants the CMDB to automatically reflect manual changes made to server operating systems. Which approach should be taken?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a business rule on the server table to update the CI when the OS is changed.
Option B is correct because a business rule on the server table can detect when the 'u_os_version' field is manually updated and automatically update the corresponding CI record. This ensures that changes made outside of Discovery are reflected in the CMDB without requiring re-discovery or scheduled jobs, leveraging ServiceNow's event-driven architecture.
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.
✗
Configure the Discovery probe to re-discover the server after an OS update.
Why it's wrong here
Proactive re-discovery is unreliable and slow; business rules provide immediate updates.
✓
Create a business rule on the server table to update the CI when the OS is changed.
Why this is correct
A business rule can trigger on update events and populate the custom CMDB field accordingly.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use the CI Class Manager to set the field as 'Reconcilable'.
Why it's wrong here
The 'Reconcilable' attribute is for IRE, not for catching manual updates.
✗
Use a scheduled job to query the server's actual OS version periodically.
Why it's wrong here
Scheduled jobs introduce latency and increased system load; not real-time.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'Reconcilable' fields with automatic update propagation, but reconciliation only resolves conflicts during data source merges, not for manual changes.
Detailed technical explanation
How to think about this question
Business rules in ServiceNow run on the server side and can be configured to fire on 'before' or 'after' insert, update, or delete operations. For this use case, a 'before' business rule on the server table can set the 'u_os_version' field to the current value of the OS version field when the OS is changed, ensuring the CMDB is updated in real-time. This approach avoids the need for external polling or re-discovery, which can be resource-intensive and delay updates.
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.
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 — 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: Create a business rule on the server table to update the CI when the OS is changed. — Option B is correct because a business rule on the server table can detect when the 'u_os_version' field is manually updated and automatically update the corresponding CI record. This ensures that changes made outside of Discovery are reflected in the CMDB without requiring re-discovery or scheduled jobs, leveraging ServiceNow's event-driven architecture.
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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Question Discussion
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