- A
The source table has a unique index on the coalesce field.
Why wrong: Incorrect: Source table indexing is not required for target duplicate detection.
- B
The target table has a unique index on the coalesce field.
Correct: The target table must have a unique index on the coalesce field for the system to identify and ignore duplicate records.
- C
The coalesce field mapping uses the 'Ignore if Empty' checkbox.
Why wrong: Incorrect: 'Ignore if Empty' controls whether empty values are considered for coalesce, but does not affect duplicate detection.
- D
The import set table has a unique index on the coalesce field.
Why wrong: Incorrect: A unique index on the import set table is needed for detecting duplicates within the same import set, but not for ignoring duplicates already in the target.
- E
The transform map has 'Enable Duplicate Detection' set to true.
Correct: This checkbox enables duplicate detection when a coalesce field mapping is set.
SNOW-CAD Working with Data Practice Question
This SNOW-CAD practice question tests your understanding of working with data. 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.
Which TWO conditions must be met for a transform map to automatically ignore duplicate records during an import?
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 target table has a unique index on the coalesce field.
For duplicate detection to work, the transform map must have 'Enable Duplicate Detection' checked (A) and the target table must have a unique index on the coalesce field (D). A unique index on the import set table is required for detecting duplicates within the same import set, but the question asks about ignoring duplicates already in the target. Options B and C are incorrect because the source table and import set table indices are not required for target duplicate detection. Option E is unrelated to duplicate detection.
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 source table has a unique index on the coalesce field.
Why it's wrong here
Incorrect: Source table indexing is not required for target duplicate detection.
- ✓
The target table has a unique index on the coalesce field.
Why this is correct
Correct: The target table must have a unique index on the coalesce field for the system to identify and ignore duplicate records.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The coalesce field mapping uses the 'Ignore if Empty' checkbox.
Why it's wrong here
Incorrect: 'Ignore if Empty' controls whether empty values are considered for coalesce, but does not affect duplicate detection.
- ✗
The import set table has a unique index on the coalesce field.
Why it's wrong here
Incorrect: A unique index on the import set table is needed for detecting duplicates within the same import set, but not for ignoring duplicates already in the target.
- ✓
The transform map has 'Enable Duplicate Detection' set to true.
Why this is correct
Correct: This checkbox enables duplicate detection when a coalesce field mapping is set.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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-CAD 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 SNOW-CAD exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Working with Data — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this SNOW-CAD question test?
Working with Data — This question tests Working with Data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The target table has a unique index on the coalesce field. — For duplicate detection to work, the transform map must have 'Enable Duplicate Detection' checked (A) and the target table must have a unique index on the coalesce field (D). A unique index on the import set table is required for detecting duplicates within the same import set, but the question asks about ignoring duplicates already in the target. Options B and C are incorrect because the source table and import set table indices are not required for target duplicate detection. Option E is unrelated to duplicate detection.
What should I do if I get this SNOW-CAD question wrong?
Identify which SNOW-CAD exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 24, 2026
This SNOW-CAD practice question is part of Courseiva's free ServiceNow 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 SNOW-CAD exam.
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