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 discovers that a scheduled discovery job is creating duplicate CI records for the same physical server. The server has two IP addresses (one for management, one for production). What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 the CI class does not include a unique hardware identifier like serial number.
Option C is correct because ServiceNow's CMDB uses identification rules to determine whether a discovered CI is new or matches an existing record. For a physical server with multiple IP addresses, the identification rule must include a unique hardware identifier such as a serial number (e.g., from SMBIOS) to prevent duplicate CIs. Without that, the system may treat each IP address as a separate CI, even though they belong to the same server.
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 schedule is set to run too frequently.
Why it's wrong here
Frequency does not cause duplicates; it would update existing records.
✗
The discovery job is configured to scan only the management IP.
Why it's wrong here
Scanning only one IP would not create duplicates.
✓
The identification rule for the CI class does not include a unique hardware identifier like serial number.
Why this is correct
Without a unique identifier, each IP may create a separate CI.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The server has too many IP addresses for discovery to handle.
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume duplicate CIs are caused by scheduling or scanning frequency, when the real issue is the absence of a proper unique identifier in the identification rule, which is a core CMDB concept tested in the SNOW-CSA exam.
Detailed technical explanation
How to think about this question
ServiceNow's identification engine relies on identification rules that define which attributes (e.g., serial_number, mac_address) are used to match CIs. For servers, the 'cmdb_ci_server' class typically uses the serial number from the SMBIOS table (via WMI or SSH) as a unique identifier. If the rule is misconfigured to rely only on IP address or hostname, a server with multiple IPs will create separate CIs because each IP is seen as a unique combination during the reconciliation process.
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: The identification rule for the CI class does not include a unique hardware identifier like serial number. — Option C is correct because ServiceNow's CMDB uses identification rules to determine whether a discovered CI is new or matches an existing record. For a physical server with multiple IP addresses, the identification rule must include a unique hardware identifier such as a serial number (e.g., from SMBIOS) to prevent duplicate CIs. Without that, the system may treat each IP address as a separate CI, even though they belong to the same server.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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