The correct answer is to review and disable unnecessary 'before query' and 'after query' business rules on the table, as these fire on every database query and are a common hidden cause of slow form loads and report timeouts. When you disable business rules to improve query performance, you eliminate the overhead of running script logic for each of the 2 million records, directly addressing the root cause rather than adding more RAM or switching to GlideAggregate. On the ServiceNow Certified Application Developer CAD exam, this question tests your understanding of how query business rules impact database performance—a frequent trap is to jump to hardware upgrades or aggregation methods, but the exam emphasizes that unnecessary query rules are the first thing to audit. Remember the memory tip: "Before and after queries slow the screen; disable the ones you haven't seen."
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.
A large enterprise uses ServiceNow for IT service management. The instance has a custom table 'u_asset_tracker' with over 2 million records. The table is referenced by multiple other tables. Recently, users have reported that when they open a record in the 'u_asset_tracker' table, the form takes 15-20 seconds to load. Additionally, reports that query this table often time out. The instance is running on a mid-range server with 8GB RAM. The admin suspects database performance issues. Upon reviewing the sys_properties, the admin finds that 'glide.ui.auto_clear_filters' is set to false. Also, there are several business rules on the table that run on 'before' query and 'after' query. A script include that transforms data from 'u_asset_tracker' to another table is running frequently. The admin needs to improve performance. Which course of action should the admin take first?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Review and disable unnecessary 'before query' and 'after query' business rules on the table.
Option C is correct because disabling 'before query' and 'after query' business rules can significantly improve query performance as they run for every query. Option A is wrong because increasing RAM may not address the root cause. Option B is wrong because GlideAggregate is for aggregation, not for general query performance. Option D is wrong because the script include may be necessary; disabling it could break functionality.
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.
✗
Replace all GlideRecord queries with GlideAggregate for reports.
Why it's wrong here
Wrong: GlideAggregate is not a replacement for all queries.
✗
Disable the script include that transforms data to reduce load.
Why it's wrong here
Wrong: This could break needed functionality.
✓
Review and disable unnecessary 'before query' and 'after query' business rules on the table.
Why this is correct
Correct: These often cause overhead on every query.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase the server RAM to 16GB to handle the load.
Why it's wrong here
Wrong: This addresses symptoms, not the root cause.
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.
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: Review and disable unnecessary 'before query' and 'after query' business rules on the table. — Option C is correct because disabling 'before query' and 'after query' business rules can significantly improve query performance as they run for every query. Option A is wrong because increasing RAM may not address the root cause. Option B is wrong because GlideAggregate is for aggregation, not for general query performance. Option D is wrong because the script include may be necessary; disabling it could break functionality.
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.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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