Question 156 of 500

Working with Data →easyMultiple ChoiceObjective-mapped

SNOW-CAD Working with Data Practice Question

This SNOW-CAD practice question tests your understanding of working with data. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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

{
  "import_set": "ISET001",
  "staging_table": "u_cmdb_ci_computer_staging",
  "target_table": "cmdb_ci_computer",
  "field_map": [
    {"source": "u_name", "target": "name"},
    {"source": "u_serial_number", "target": "serial_number"},
    {"source": "u_model_id", "target": "model_id", "coalesce": true}
  ]
}

Refer to the exhibit. A transform map configuration is shown. What will happen if the source data has a 'u_model_id' value that matches an existing record in the 'cmdb_ci_model' table?

Question 1easymultiple choice

Full question →

Exhibit

{
  "import_set": "ISET001",
  "staging_table": "u_cmdb_ci_computer_staging",
  "target_table": "cmdb_ci_computer",
  "field_map": [
    {"source": "u_name", "target": "name"},
    {"source": "u_serial_number", "target": "serial_number"},
    {"source": "u_model_id", "target": "model_id", "coalesce": true}
  ]
}

A
The transform will ignore the field because it is already mapped.
Why wrong: Coalesce actively looks up the reference.
B
The transform will create a new model record with the given value.
Why wrong: Coalesce only matches existing records; it does not insert.
C
The transform will automatically set the model_id reference to the existing model record.
Coalesce uses the source value to match a record in the referenced table and sets the reference.
D
The transform will skip the record because the model already exists.
Why wrong: Coalesce does not skip records; it maps the reference.

Full breakdown with real-world context →

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 transform will automatically set the model_id reference to the existing model record.

Option A is correct because coalesce=true on model_id will use the source value to look up the existing model_id record and set the reference. Option B is wrong because coalesce does not create new records. Option C is wrong because it does not skip the record. Option D is wrong because it does not ignore the field.

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 transform will ignore the field because it is already mapped.
Why it's wrong here
Coalesce actively looks up the reference.
✗
The transform will create a new model record with the given value.
Why it's wrong here
Coalesce only matches existing records; it does not insert.
✓
The transform will automatically set the model_id reference to the existing model record.
Why this is correct
Coalesce uses the source value to match a record in the referenced table and sets the reference.
Related concept
Read the scenario before looking for a memorised answer.
✗
The transform will skip the record because the model already exists.
Why it's wrong here
Coalesce does not skip records; it maps the reference.

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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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 transform will automatically set the model_id reference to the existing model record. — Option A is correct because coalesce=true on model_id will use the source value to look up the existing model_id record and set the reference. Option B is wrong because coalesce does not create new records. Option C is wrong because it does not skip the record. Option D is wrong because it does not ignore the field.

What should I do if I get this SNOW-CAD question wrong?

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 24, 2026

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