The correct answer is that all events will be mapped to the Authentication data model, increasing resource usage and potential inaccuracies. This happens because a default stanza in props.conf applies the data model assignment universally to every sourcetype, forcing Splunk to run the Authentication data model’s field extractions and transformations against all incoming events, even those with no authentication-related data. The unnecessary processing consumes extra CPU and memory, and it can produce false positives or incomplete mappings when non-authentication events are forced into the model’s schema. On the SPLK-1002 exam, this question tests your understanding of how data model assignments interact with props.conf precedence and the performance cost of broad defaults. A common trap is assuming a default stanza is harmless or efficient, when in fact it should be reserved for sourcetypes that genuinely match the model. Memory tip: “Default is dangerous—assign with a tag, not a drag.”
SPLK-1002 Data Models and Best Practices Practice Question
This SPLK-1002 practice question tests your understanding of data models and best practices. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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
props.conf:
[default]
DATETIME_CONFIG = CURRENT
DATA_MODEL = Authentication
Refer to the exhibit. An administrator configures a default stanza in props.conf to assign the Authentication data model to all sourcetypes. Which issue might arise?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
All events will be mapped to the Authentication data model, increasing resource usage and potential inaccuracies.
Setting a default stanza in props.conf to assign the Authentication data model to all sourcetypes forces every event to be processed against that data model, regardless of whether the event contains authentication-related data. This increases resource consumption (CPU and memory) because the data model's field extractions and transformations are applied universally, and it can lead to inaccurate results as non-authentication events may produce false positives or incomplete mappings. The correct approach is to use specific sourcetype stanzas or tags to limit data model assignment to relevant events.
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.
✗
Only authentication tagged events will be included.
Why it's wrong here
The DATA_MODEL setting overrides tags; all events are mapped.
✗
The data model will work correctly for all events if they contain authentication fields.
Why it's wrong here
Most events do not contain authentication fields, leading to poor data quality.
✓
All events will be mapped to the Authentication data model, increasing resource usage and potential inaccuracies.
Why this is correct
This is inefficient and may cause performance issues.
Related concept
Read the scenario before looking for a memorised answer.
✗
The data model acceleration will automatically adjust.
Why it's wrong here
Acceleration does not auto-adjust to this configuration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume a default stanza is a harmless catch-all configuration, but in reality it forces universal data model processing, leading to performance degradation and data integrity issues.
Detailed technical explanation
How to think about this question
In Splunk, props.conf stanzas define parsing rules for sourcetypes, and a default stanza ([default]) applies to all sourcetypes unless overridden. When a data model is assigned via the `DATAMODEL` setting in props.conf, Splunk runs the data model's field extractions and constraints during index-time or search-time processing. For the Authentication data model, which expects specific fields like `user`, `action`, `src`, and `dest`, applying it to all events forces unnecessary computation and can corrupt the data model's acceleration summary if non-authentication events are inadvertently included. A best practice is to use tags or sourcetype-specific stanzas to bind data models only to relevant data sources.
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 SPLK-1002 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.
Data Models and Best Practices — This question tests Data Models and Best Practices — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: All events will be mapped to the Authentication data model, increasing resource usage and potential inaccuracies. — Setting a default stanza in props.conf to assign the Authentication data model to all sourcetypes forces every event to be processed against that data model, regardless of whether the event contains authentication-related data. This increases resource consumption (CPU and memory) because the data model's field extractions and transformations are applied universally, and it can lead to inaccurate results as non-authentication events may produce false positives or incomplete mappings. The correct approach is to use specific sourcetype stanzas or tags to limit data model assignment to relevant events.
What should I do if I get this SPLK-1002 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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This SPLK-1002 practice question is part of Courseiva's free Splunk 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 SPLK-1002 exam.
Question Discussion
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