- A
Use setLimit(1000) to reduce the number of records per execution.
Why wrong: Setting a limit reduces the number of records returned per query, but the migration still needs to process all 100,000 records. It does not prevent timeout because the script still attempts to process all records in one go, just with fewer returned each time; actually, setLimit would only return up to 1000 records, losing the rest. This option is incorrect.
- B
Use GlideAggregate to count records before insertion.
Why wrong: GlideAggregate is designed for aggregate functions like SUM, COUNT, AVG, etc. It does not help with inserting records in batches. Using it to count records before insertion does not address the timeout caused by large batch insertions. This option is incorrect.
- C
Increase the transaction timeout setting in the system properties.
Why wrong: Increasing the transaction timeout might prevent the timeout error from occurring, but it does not make the script more efficient. It can still cause performance degradation and potential database locks. This is a workaround, not a proper optimization. This option is incorrect.
- D
Use GlideRecordBatch or a scheduled job to process records in smaller batches.
Using GlideRecordBatch or a scheduled job allows the developer to process records in smaller, manageable batches. This prevents the script from running for too long in a single transaction, thereby avoiding the timeout while still processing all records. This is the most effective optimization technique.
SNOW-CAD Working with Data Practice Question
This SNOW-CAD practice question tests your understanding of working with data. 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.
During a data migration, a developer runs a GlideRecord query to load 100,000 records from an external source into the 'incident' table. The script times out after 60 seconds. Which optimization technique would be most effective to avoid the timeout?
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
Use GlideRecordBatch or a scheduled job to process records in smaller batches.
Option D is correct because using GlideRecordBatch or a scheduled job with incremental processing breaks the workload into manageable chunks, preventing the script from timing out. Option A is incorrect because setLimit(1000) only limits the number of records returned per query, but the migration requires all 100,000 records to be processed; it does not solve the timeout issue when processing large batches. Option B is incorrect because GlideAggregate is used for aggregation queries (e.g., counting records) and does not assist in batch insertion of records. Option C is incorrect because increasing the transaction timeout is a temporary workaround; it does not address the underlying efficiency problem and may lead to other performance issues.
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.
- ✗
Use setLimit(1000) to reduce the number of records per execution.
Why it's wrong here
Setting a limit reduces the number of records returned per query, but the migration still needs to process all 100,000 records. It does not prevent timeout because the script still attempts to process all records in one go, just with fewer returned each time; actually, setLimit would only return up to 1000 records, losing the rest. This option is incorrect.
- ✗
Use GlideAggregate to count records before insertion.
Why it's wrong here
GlideAggregate is designed for aggregate functions like SUM, COUNT, AVG, etc. It does not help with inserting records in batches. Using it to count records before insertion does not address the timeout caused by large batch insertions. This option is incorrect.
- ✗
Increase the transaction timeout setting in the system properties.
Why it's wrong here
Increasing the transaction timeout might prevent the timeout error from occurring, but it does not make the script more efficient. It can still cause performance degradation and potential database locks. This is a workaround, not a proper optimization. This option is incorrect.
- ✓
Use GlideRecordBatch or a scheduled job to process records in smaller batches.
Why this is correct
Using GlideRecordBatch or a scheduled job allows the developer to process records in smaller, manageable batches. This prevents the script from running for too long in a single transaction, thereby avoiding the timeout while still processing all records. This is the most effective optimization technique.
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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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: Use GlideRecordBatch or a scheduled job to process records in smaller batches. — Option D is correct because using GlideRecordBatch or a scheduled job with incremental processing breaks the workload into manageable chunks, preventing the script from timing out. Option A is incorrect because setLimit(1000) only limits the number of records returned per query, but the migration requires all 100,000 records to be processed; it does not solve the timeout issue when processing large batches. Option B is incorrect because GlideAggregate is used for aggregation queries (e.g., counting records) and does not assist in batch insertion of records. Option C is incorrect because increasing the transaction timeout is a temporary workaround; it does not address the underlying efficiency problem and may lead to other performance issues.
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.
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Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 24, 2026
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